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2010 Vol. 32, No. 4
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2010, 32(4): 763-769.
doi: 10.3724/SP.J.1146.2009.00542
Abstract:
In multi-antenna amplify-and-forward two-way relay system, the closed form expression of the MSE optimal relay processing matrix with low complexity based on Minimum Sum Mean Square Error (MSMSE) criterion is derived. To utilize the spatial diversity...
In multi-antenna amplify-and-forward two-way relay system, the closed form expression of the MSE optimal relay processing matrix with low complexity based on Minimum Sum Mean Square Error (MSMSE) criterion is derived. To utilize the spatial diversity...
2010, 32(4): 770-774.
doi: 10.3724/SP.J.1146.2008.00728
Abstract:
This paper presents a new scheme based on proportional fairness for MIMO-OFDM downlink resource allocation to maximize the sum of user data rates, subject to constraints on total power, bit error rate, and proportionality among user data rates. This ...
This paper presents a new scheme based on proportional fairness for MIMO-OFDM downlink resource allocation to maximize the sum of user data rates, subject to constraints on total power, bit error rate, and proportionality among user data rates. This ...
2010, 32(4): 775-780.
doi: 10.3724/SP.J.1146.2008.00401
Abstract:
The main objective of the traditional OFDMA uplink resource allocation focuses on two aspects: one is to maximize the transmission rate of each user, the other is to minimize power. But both of them do not consider the power efficiency of each user. ...
The main objective of the traditional OFDMA uplink resource allocation focuses on two aspects: one is to maximize the transmission rate of each user, the other is to minimize power. But both of them do not consider the power efficiency of each user. ...
2010, 32(4): 781-785.
doi: 10.3724/SP.J.1146.2009.00346
Abstract:
In high SNR region, power offset is the zero-order term in SNR axis of SNR-capacity curve and its optimization is helpful to improve capacity. In this paper, based on fitting determinant curve of tri-diagonal Toeplitz matrix, expression of extreme po...
In high SNR region, power offset is the zero-order term in SNR axis of SNR-capacity curve and its optimization is helpful to improve capacity. In this paper, based on fitting determinant curve of tri-diagonal Toeplitz matrix, expression of extreme po...
2010, 32(4): 786-789.
doi: 10.3724/SP.J.1146.2009.00509
Abstract:
Since different delay offsets are applied to the spatially multiplexed data streams of asynchronous vertical Bell Labs layered space-time (V-BLAST), the symbol-by-symbol power allocation method used in synchronous systems is invalid. According to thi...
Since different delay offsets are applied to the spatially multiplexed data streams of asynchronous vertical Bell Labs layered space-time (V-BLAST), the symbol-by-symbol power allocation method used in synchronous systems is invalid. According to thi...
Iterative Detection Scheme for Multiuser Turbo-BLAST System with Imperfect Channel State Information
2010, 32(4): 790-793.
doi: 10.3724/SP.J.1146.2009.00076
Abstract:
The space-time multiuser detection scheme is applied to Turbo-BLAST system to form a multiuser Turbo-BLAST system. A scheme for de-correlating and interference cancellation detection technique is proposed in the presence of channel state information ...
The space-time multiuser detection scheme is applied to Turbo-BLAST system to form a multiuser Turbo-BLAST system. A scheme for de-correlating and interference cancellation detection technique is proposed in the presence of channel state information ...
2010, 32(4): 794-798.
doi: 10.3724/SP.J.1146.2008.01691
Abstract:
Generally in MIMO system, the tradeoff between multiplexing gain and diversity gain，under their definite product, can be obtained by decreasing the efficiency of space-time code. In this paper, according to analyzing the relationship among the VBLAST...
Generally in MIMO system, the tradeoff between multiplexing gain and diversity gain，under their definite product, can be obtained by decreasing the efficiency of space-time code. In this paper, according to analyzing the relationship among the VBLAST...
2010, 32(4): 799-804.
doi: 10.3724/SP.J.1146.2009.00788
Abstract:
A Distributed Precoded Non-Orthogonal Cooperative Diversity (DP-NOCD) system with limited feedback is proposed, which utilizes the multi-antenna characteristic at the destination to make the preprocessed relay signals transmitted on the shared channe...
A Distributed Precoded Non-Orthogonal Cooperative Diversity (DP-NOCD) system with limited feedback is proposed, which utilizes the multi-antenna characteristic at the destination to make the preprocessed relay signals transmitted on the shared channe...
2010, 32(4): 805-810.
doi: 10.3724/SP.J.1146.2009.01145
Abstract:
A novel improved initial ranging algorithm in frequency domain is proposed for the uplink OFDMA system based on IEEE 802.16e. The initial ranging progress in frequency domain is completed by correlating the receiving signal with ranging codes in the ...
A novel improved initial ranging algorithm in frequency domain is proposed for the uplink OFDMA system based on IEEE 802.16e. The initial ranging progress in frequency domain is completed by correlating the receiving signal with ranging codes in the ...
2010, 32(4): 811-815.
doi: 10.3724/SP.J.1146.2009.00475
Abstract:
A new method of pseudonoise (PN) code acquisition is proposed in this paper to realize the code acquisition in weakly dependent non-Gaussian impulsive channels. Modeling the acquisition issue as a hypothesis testing issue, a detector is derived for d...
A new method of pseudonoise (PN) code acquisition is proposed in this paper to realize the code acquisition in weakly dependent non-Gaussian impulsive channels. Modeling the acquisition issue as a hypothesis testing issue, a detector is derived for d...
2010, 32(4): 816-820.
doi: 10.3724/SP.J.1146.2009.00456
Abstract:
An intelligent eavesdropper may easily intercept the frequency transition relations if a constant G function is used in Differential Frequency Hopping (DFH) system because of the poor 2-dimensional continuity of constant DFH sequence. To solve the pr...
An intelligent eavesdropper may easily intercept the frequency transition relations if a constant G function is used in Differential Frequency Hopping (DFH) system because of the poor 2-dimensional continuity of constant DFH sequence. To solve the pr...
2010, 32(4): 821-824.
doi: 10.3724/SP.J.1146.2009.00430
Abstract:
In this paper, a new class of generalized cyclotomic sequences of period pm(p odd prime and m1) with arbitrary order is constructed and its minimal polynomial is determined. Hence the linear complexity of it is obtained. The possible values of its li...
In this paper, a new class of generalized cyclotomic sequences of period pm(p odd prime and m1) with arbitrary order is constructed and its minimal polynomial is determined. Hence the linear complexity of it is obtained. The possible values of its li...
2010, 32(4): 825-829.
doi: 10.3724/SP.J.1146.2009.00388
Abstract:
Reduced List Syndrome Decoding (RLSD) algorithm and QC-LDPC codes are investigated in this paper, based on which, a new BP-RLSD concatenation algorithm for QC-LDPC codes is proposed. When the Belief Propagation (BP) algorithm fails, the soft LLR reli...
Reduced List Syndrome Decoding (RLSD) algorithm and QC-LDPC codes are investigated in this paper, based on which, a new BP-RLSD concatenation algorithm for QC-LDPC codes is proposed. When the Belief Propagation (BP) algorithm fails, the soft LLR reli...
2010, 32(4): 830-835.
doi: 10.3724/SP.J.1146.2009.00489
Abstract:
A Node Staying Probability based Path Compression Algorithm (NSP-PCA) is proposed in this paper. In NSP-PCA, the stability of new local paths is predicted by computing the probability that one node keeps staying in another nodes transmission range. T...
A Node Staying Probability based Path Compression Algorithm (NSP-PCA) is proposed in this paper. In NSP-PCA, the stability of new local paths is predicted by computing the probability that one node keeps staying in another nodes transmission range. T...
2010, 32(4): 836-840.
doi: 10.3724/SP.J.1146.2009.00270
Abstract:
In multi-domain environment, symptoms caused by inter-domain fault propagation will affect fault diagnosis algorithm. A distributed dependency model is proposed to build the dependencies in service system. Based on the dependency model, a distributed...
In multi-domain environment, symptoms caused by inter-domain fault propagation will affect fault diagnosis algorithm. A distributed dependency model is proposed to build the dependencies in service system. Based on the dependency model, a distributed...
2010, 32(4): 841-845.
doi: 10.3724/SP.J.1146.2009.00481
Abstract:
Considering the problem of low efficiency on topology design for large scale Service Overlay Networks(SON), a linear programming model is proposed based on multi-commodity flow and algorithm with bandwidth capability constraints, which reduces the ti...
Considering the problem of low efficiency on topology design for large scale Service Overlay Networks(SON), a linear programming model is proposed based on multi-commodity flow and algorithm with bandwidth capability constraints, which reduces the ti...
2010, 32(4): 846-851.
doi: 10.3724/SP.J.1146.2009.00435
Abstract:
This paper firstly improves the combinatorial double auction based grid resource allocation and pricing model, and proposes a unit price based pricing algorithm. Then an equivalent price algorithm is proposed, which designs the trust-based price adju...
This paper firstly improves the combinatorial double auction based grid resource allocation and pricing model, and proposes a unit price based pricing algorithm. Then an equivalent price algorithm is proposed, which designs the trust-based price adju...
2010, 32(4): 852-856.
doi: 10.3724/SP.J.1146.2009.00169
Abstract:
Ad hoc Networks is characteristic of limited energy and memory. A novel entity authentication scheme based on HuffMHT for Ad hoc Networks is proposed to solve such problems. This method using the concept of HuffMHT can obtain an effective safe strate...
Ad hoc Networks is characteristic of limited energy and memory. A novel entity authentication scheme based on HuffMHT for Ad hoc Networks is proposed to solve such problems. This method using the concept of HuffMHT can obtain an effective safe strate...
2010, 32(4): 857-863.
doi: 10.3724/SP.J.1146.2009.00342
Abstract:
In this paper, defining energy cost function constructed by remain energy, neighborhood numbers and communication cost of nodes as topology weight to synthetically reflect the energy efficiency of dominator and the contribution of reduced whole energ...
In this paper, defining energy cost function constructed by remain energy, neighborhood numbers and communication cost of nodes as topology weight to synthetically reflect the energy efficiency of dominator and the contribution of reduced whole energ...
2010, 32(4): 864-868.
doi: 10.3724/SP.J.1146.2009.00519
Abstract:
A localization and tracking algorithm suitable for mobile wireless sensor network is proposed. The algorithm uses controlled flood method to improve the using efficiency of the anchor nodes, uses cross operation to accelerate the sampling process and...
A localization and tracking algorithm suitable for mobile wireless sensor network is proposed. The algorithm uses controlled flood method to improve the using efficiency of the anchor nodes, uses cross operation to accelerate the sampling process and...
2010, 32(4): 869-874.
doi: 10.3724/SP.J.1146.2009.00349
Abstract:
In this paper, a lightweight key establishment protocol for wireless sensor networks is proposed. By optimizing information exchanges in the process of key establishment, this temporal initial key based protocol is able to achieve better extensibilit...
In this paper, a lightweight key establishment protocol for wireless sensor networks is proposed. By optimizing information exchanges in the process of key establishment, this temporal initial key based protocol is able to achieve better extensibilit...
2010, 32(4): 875-879.
doi: 10.3724/SP.J.1146.2009.00408
Abstract:
This paper presents a TPM-based architecture DIMA (Dynamic Integrity Measurement Architecture), which helps the administrators check the integrity of the processes and modules dynamically. Compares with other measurement architectures, DIMA uses a ne...
This paper presents a TPM-based architecture DIMA (Dynamic Integrity Measurement Architecture), which helps the administrators check the integrity of the processes and modules dynamically. Compares with other measurement architectures, DIMA uses a ne...
2010, 32(4): 880-883.
doi: 10.3724/SP.J.1146.2009.00410
Abstract:
Based on the correlative matrices, which are designed by dividing secret images and shares into vertical areas, a new multi-secret visual cryptography scheme is presented in this paper. Compared to the previous ones, the proposed scheme makes the num...
Based on the correlative matrices, which are designed by dividing secret images and shares into vertical areas, a new multi-secret visual cryptography scheme is presented in this paper. Compared to the previous ones, the proposed scheme makes the num...
2010, 32(4): 884-888.
doi: 10.3724/SP.J.1146.2009.00359
Abstract:
In order to solve the problem of the blind recognition of channel coding, a method of blind recognition of (n, 1, m) convolutional coding in the high bit error rate condition is proposed. Firstly, the mathematical model of the blind recognition is gi...
In order to solve the problem of the blind recognition of channel coding, a method of blind recognition of (n, 1, m) convolutional coding in the high bit error rate condition is proposed. Firstly, the mathematical model of the blind recognition is gi...
2010, 32(4): 889-893.
doi: 10.3724/SP.J.1146.2009.00547
Abstract:
In passive millimeter wave imaging, the problem of poor resolution of acquired image stems mainly from system antenna size limitations. In order to achieve resolution improvements, a Projected Wavelet-domain Maximum A Posteriori (PWMAP) estimation su...
In passive millimeter wave imaging, the problem of poor resolution of acquired image stems mainly from system antenna size limitations. In order to achieve resolution improvements, a Projected Wavelet-domain Maximum A Posteriori (PWMAP) estimation su...
2010, 32(4): 894-897.
doi: 10.3724/SP.J.1146.2009.01202
Abstract:
A moving object detection algorithm based on three-frame-differencing and edge information is presented in this paper. Firstly, three continuous edge images are obtained by edge extract from three continuous images, and then, the motion information i...
A moving object detection algorithm based on three-frame-differencing and edge information is presented in this paper. Firstly, three continuous edge images are obtained by edge extract from three continuous images, and then, the motion information i...
2010, 32(4): 898-901.
doi: 10.3724/SP.J.1146.2009.00394
Abstract:
To resolve the problem of track correlation in distributed multi-sensor system, a track correlation algorithm based on multi-dimension assignment and gray theory is presented in this paper. Firstly, gray theory is applied to acquire a global statisti...
To resolve the problem of track correlation in distributed multi-sensor system, a track correlation algorithm based on multi-dimension assignment and gray theory is presented in this paper. Firstly, gray theory is applied to acquire a global statisti...
2010, 32(4): 902-907.
doi: 10.3724/SP.J.1146.2009.00455
Abstract:
In the case of clutter, conventional multi-channel SAR (Synthetic Aperture Radar) executes moving target detection immediately after clutter cancellation, and the influence of range migration is ignored. However, this approach may lose some fast targ...
In the case of clutter, conventional multi-channel SAR (Synthetic Aperture Radar) executes moving target detection immediately after clutter cancellation, and the influence of range migration is ignored. However, this approach may lose some fast targ...
2010, 32(4): 908-912.
doi: 10.3724/SP.J.1146.2009.00493
Abstract:
A new detection algorithm based on Expectation Maximization (EM) algorithm and information- theoretic criteria for a spatially distributed, range walking and rotating target during a Coherent Processing Interval (CPI) are proposed. The proposed detec...
A new detection algorithm based on Expectation Maximization (EM) algorithm and information- theoretic criteria for a spatially distributed, range walking and rotating target during a Coherent Processing Interval (CPI) are proposed. The proposed detec...
2010, 32(4): 913-918.
doi: 10.3724/SP.J.1146.2009.00336
Abstract:
A new theoretical model for target scattering characteristic measurement based on ordinary mono-pulse radar system is proposed in this paper. The complexity of polarization structure in mono-pulse antenna is proved firstly. It is verified to be sensi...
A new theoretical model for target scattering characteristic measurement based on ordinary mono-pulse radar system is proposed in this paper. The complexity of polarization structure in mono-pulse antenna is proved firstly. It is verified to be sensi...
2010, 32(4): 919-924.
doi: 10.3724/SP.J.1146.2009.00291
Abstract:
A method of the mixing matrix estimation in the underdetermined source separation is proposed in which the sources are not sparse enough to estimate the mixing matrix. Getting many sub matrixes through applying Independent component analysis(ICA) for...
A method of the mixing matrix estimation in the underdetermined source separation is proposed in which the sources are not sparse enough to estimate the mixing matrix. Getting many sub matrixes through applying Independent component analysis(ICA) for...
2010, 32(4): 925-931.
doi: 10.3724/SP.J.1146.2009.00512
Abstract:
Based on the statistical model in stationary wavelet domain, an algorithm of SAR image despeckling is developed. Firstly, nonlogarithmic additive model is applied to SAR image, and then a statistical distributionLocal Translation-Rayleigh Distributio...
Based on the statistical model in stationary wavelet domain, an algorithm of SAR image despeckling is developed. Firstly, nonlogarithmic additive model is applied to SAR image, and then a statistical distributionLocal Translation-Rayleigh Distributio...
2010, 32(4): 932-936.
doi: 10.3724/SP.J.1146.2009.00502
Abstract:
This paper deals with the general spotlight bistatic SAR data based on series reversion. It is rather difficult to obtain the two-dimensional frequency spectrum which is hard for latter processing. By using the series reversion, the two-dimensional p...
This paper deals with the general spotlight bistatic SAR data based on series reversion. It is rather difficult to obtain the two-dimensional frequency spectrum which is hard for latter processing. By using the series reversion, the two-dimensional p...
2010, 32(4): 937-940.
doi: 10.3724/SP.J.1146.2009.00480
Abstract:
For spaceborne Synthetic Aperture Radar(SAR) processing, Doppler property influences the azimuth performance and the imaging accuracy directly. In this paper, the Doppler centroid frequency expression based on elliptical orbit is derived analytically...
For spaceborne Synthetic Aperture Radar(SAR) processing, Doppler property influences the azimuth performance and the imaging accuracy directly. In this paper, the Doppler centroid frequency expression based on elliptical orbit is derived analytically...
2010, 32(4): 941-947.
doi: 10.3724/SP.J.1146.2009.00377
Abstract:
This paper mainly analyzes the important factors that influence the accuracy of airborne differential SAR interferometry. The error induced by the processing procedure of differential SAR interferometry is first considered, and it is point out that e...
This paper mainly analyzes the important factors that influence the accuracy of airborne differential SAR interferometry. The error induced by the processing procedure of differential SAR interferometry is first considered, and it is point out that e...
2010, 32(4): 948-952.
doi: 10.3724/SP.J.1146.2008.01348
Abstract:
An elevation adaptive algorithm is presented according to the characteristics that clutter Doppler varies with range in airborne phased array radar. This algorithm, by making use of the elevation freedom in plane array antenna, is first to select the...
An elevation adaptive algorithm is presented according to the characteristics that clutter Doppler varies with range in airborne phased array radar. This algorithm, by making use of the elevation freedom in plane array antenna, is first to select the...
2010, 32(4): 953-958.
doi: 10.3724/SP.J.1146.2009.00515
Abstract:
A high-resolution algorithm for 2D DOA estimation is proposed to reduce the computational complexity of traditional high-resolution methods. The objective function of the optimization issue based on norm constraint is developed firstly. Then the spar...
A high-resolution algorithm for 2D DOA estimation is proposed to reduce the computational complexity of traditional high-resolution methods. The objective function of the optimization issue based on norm constraint is developed firstly. Then the spar...
2010, 32(4): 959-962.
doi: 10.3724/SP.J.1146.2009.00425
Abstract:
Compared with traditional imaging algorithm based on Delay and Sum (DAS), Capon algorithm can increase horizontal resolution of medical ultrasound image, but the contrast is not improved. A new algorithm named Chirp_Caopn is proposed in this paper, w...
Compared with traditional imaging algorithm based on Delay and Sum (DAS), Capon algorithm can increase horizontal resolution of medical ultrasound image, but the contrast is not improved. A new algorithm named Chirp_Caopn is proposed in this paper, w...
2010, 32(4): 963-966.
doi: 10.3724/SP.J.1146.2009.00175
Abstract:
A novel version of PM-Root-MUSIC algorithm is developed in this paper. The algorithm is based on the Manifold Separation Technique (MST) for fast DOA estimation of Uniform Circular Array (UCA) when elements of UCA are sparse. The method does not suff...
A novel version of PM-Root-MUSIC algorithm is developed in this paper. The algorithm is based on the Manifold Separation Technique (MST) for fast DOA estimation of Uniform Circular Array (UCA) when elements of UCA are sparse. The method does not suff...
2010, 32(4): 967-972.
doi: 10.3724/SP.J.1146.2008.01176
Abstract:
A new DOA estimation method based on orthogonal joint diagonalization of high-order cumulant is proposed. The high-order cumulant matrices are jointly utilized to DOA. Through processing high-order cumulant matrices by the new technique of orthogonal...
A new DOA estimation method based on orthogonal joint diagonalization of high-order cumulant is proposed. The high-order cumulant matrices are jointly utilized to DOA. Through processing high-order cumulant matrices by the new technique of orthogonal...
2010, 32(4): 973-977.
doi: 10.3724/SP.J.1146.2009.00532
Abstract:
The design method of a class of symmetric biorthogonal wavelets is proposed in this paper. The filter banks of the wavelets possess lattice structure, the analysis and synthesis filter banks for wavelets meet biorthogonality and regularly conditions,...
The design method of a class of symmetric biorthogonal wavelets is proposed in this paper. The filter banks of the wavelets possess lattice structure, the analysis and synthesis filter banks for wavelets meet biorthogonality and regularly conditions,...
2010, 32(4): 978-982.
doi: 10.3724/SP.J.1146.2009.00402
Abstract:
For Multiple-Input Multiple-Output (MIMO) space-time coding architecture with distributed transmit antennas, the location of transmit antennas will impact the system performance. To solve this problem, the area averaged bit error ratio (AABER) of V-B...
For Multiple-Input Multiple-Output (MIMO) space-time coding architecture with distributed transmit antennas, the location of transmit antennas will impact the system performance. To solve this problem, the area averaged bit error ratio (AABER) of V-B...
2010, 32(4): 983-987.
doi: 10.3724/SP.J.1146.2009.00358
Abstract:
This paper focuses on the Hopf bifurcation analysis of a fluid-flow model with time-delay for the congestion control algorithm in the wireless networks. By choosing the communication delay as a bifurcation parameter, the model exhibits of Hopf bifurc...
This paper focuses on the Hopf bifurcation analysis of a fluid-flow model with time-delay for the congestion control algorithm in the wireless networks. By choosing the communication delay as a bifurcation parameter, the model exhibits of Hopf bifurc...
2010, 32(4): 988-992.
doi: 10.3724/SP.J.1146.2009.00634
Abstract:
The characteristic of heterogeneous grid environment determines that the task scheduling is constrained by a number of factors such as the length of scheduling, the performance of security, the cost of scheduling and etc. Firstly, based on the charac...
The characteristic of heterogeneous grid environment determines that the task scheduling is constrained by a number of factors such as the length of scheduling, the performance of security, the cost of scheduling and etc. Firstly, based on the charac...
2010, 32(4): 993-997.
doi: 10.3724/SP.J.1146.2009.00127
Abstract:
A new method of TOA (time of arrival) estimation in frequency domain used for wireless sensor nodes acoustic ranging is proposed in this paper. It shows higher accurate results under lower signal-noise-ratio applications compare to the time-domain me...
A new method of TOA (time of arrival) estimation in frequency domain used for wireless sensor nodes acoustic ranging is proposed in this paper. It shows higher accurate results under lower signal-noise-ratio applications compare to the time-domain me...
2010, 32(4): 998-1002.
doi: 10.3724/SP.J.1146.2009.00337
Abstract:
In order to test the measurement capability of HF ground wave radar system (OSMAR-S) with compact receiving antenna, verification tests of OSMAR-S system againstin situ measurements had been accomplished on Nov. 12~17, 2007. A observation method is u...
In order to test the measurement capability of HF ground wave radar system (OSMAR-S) with compact receiving antenna, verification tests of OSMAR-S system againstin situ measurements had been accomplished on Nov. 12~17, 2007. A observation method is u...
2010, 32(4): 1003-1007.
doi: 10.3724/SP.J.1146.2009.00343
Abstract:
In order to enhance the utilization of the correlation between different acoustic units in speech recognition, a novel model training approach based on the Spatial Correlation Transformation (SCT) framework is proposed in this paper, in which the spe...
In order to enhance the utilization of the correlation between different acoustic units in speech recognition, a novel model training approach based on the Spatial Correlation Transformation (SCT) framework is proposed in this paper, in which the spe...
2010, 32(4): 1008-1011.
doi: 10.3724/SP.J.1146.2009.00392
Abstract:
In this paper, the concepts of (T, S)-vague equivalence relation and dominatment of a pair of t-norm based on t-norm and t-conorm are preposed based on the characteristic which a vague set has truth- membership function and false- membership function...
In this paper, the concepts of (T, S)-vague equivalence relation and dominatment of a pair of t-norm based on t-norm and t-conorm are preposed based on the characteristic which a vague set has truth- membership function and false- membership function...
2010, 32(4): 1012-1016.
doi: 10.3724/SP.J.1146.2009.00247
Abstract:
Usually in a sigma-delta ADC, the digital filter takes most of the chip area. In this paper, a novel digital filer topology is proposed, in which the differentiator is constructed with a control unit and an adder instead of the multiple of adders in ...
Usually in a sigma-delta ADC, the digital filter takes most of the chip area. In this paper, a novel digital filer topology is proposed, in which the differentiator is constructed with a control unit and an adder instead of the multiple of adders in ...
