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2005 Vol. 27, No. 7
Display Method:
2005, 27(7): 1009-1012.
Abstract:
In this paper, a remote sensing image matching algorithm based on distance transformation and genetic algorithms is proposed. Firstly, the reference images and target images are processed using histogram equalization to overcome different brightness ...
In this paper, a remote sensing image matching algorithm based on distance transformation and genetic algorithms is proposed. Firstly, the reference images and target images are processed using histogram equalization to overcome different brightness ...
2005, 27(7): 1013-1016.
Abstract:
Feature points in images are commonly used for image registration. Feature points can be classified as in narrow sense and in broad sense. Feature Points in Broad Sense (FPBS) can be defined in different ways. A new definition of FPBS is proposed tha...
Feature points in images are commonly used for image registration. Feature points can be classified as in narrow sense and in broad sense. Feature Points in Broad Sense (FPBS) can be defined in different ways. A new definition of FPBS is proposed tha...
2005, 27(7): 1017-1020.
Abstract:
The Haar and CDF(2,2) wavelet transforms can be implemented by the lifting scheme. They are combined with Haar-without-update wavelet and then an adaptive wavelet transform is constructed. It can adaptively match the wavelet to a given signal. The si...
The Haar and CDF(2,2) wavelet transforms can be implemented by the lifting scheme. They are combined with Haar-without-update wavelet and then an adaptive wavelet transform is constructed. It can adaptively match the wavelet to a given signal. The si...
2005, 27(7): 1021-1024.
Abstract:
A two-step approach for tracking moving object is proposed in this paper. According of this approach, the structure template of object is firstly extracted with morphologic methods, and then the object tracking is performed with the structure templat...
A two-step approach for tracking moving object is proposed in this paper. According of this approach, the structure template of object is firstly extracted with morphologic methods, and then the object tracking is performed with the structure templat...
2005, 27(7): 1025-1029.
Abstract:
In this paper, the methodology of likelihood score normalization is studied. The text-independent speaker recognition system based on the adapted Gaussion Mixture Models(GMMs) is established, and the approach to normalize scores combining speaker-ind...
In this paper, the methodology of likelihood score normalization is studied. The text-independent speaker recognition system based on the adapted Gaussion Mixture Models(GMMs) is established, and the approach to normalize scores combining speaker-ind...
2005, 27(7): 1030-1034.
Abstract:
A novel wavelet image coder based on morphological dilation and run-length coding, dilation-run algorithm, is proposed according to both intra-subband clustering of significant wavelet coefficients and inter-subband dependency in significant fields. ...
A novel wavelet image coder based on morphological dilation and run-length coding, dilation-run algorithm, is proposed according to both intra-subband clustering of significant wavelet coefficients and inter-subband dependency in significant fields. ...
2005, 27(7): 1035-1038.
Abstract:
A digital watermarking scheme is proposed in this paper, which is based on Independent Component Analysis (ICA) and able to resist copy attack effectively. In this algorithm, both the image signature describing the original image uniquely and the wat...
A digital watermarking scheme is proposed in this paper, which is based on Independent Component Analysis (ICA) and able to resist copy attack effectively. In this algorithm, both the image signature describing the original image uniquely and the wat...
2005, 27(7): 1039-1042.
Abstract:
A blind wavelet-based watermarking algorithm with robust for image cropping is proposed. The original image is transformed using wavelet transform and the watermarks are embedded in two selected subbands according to neighboring symbols mean value an...
A blind wavelet-based watermarking algorithm with robust for image cropping is proposed. The original image is transformed using wavelet transform and the watermarks are embedded in two selected subbands according to neighboring symbols mean value an...
2005, 27(7): 1043-1046.
Abstract:
The incompleteness of the frame of discernment is one of the main difficulties confronted in the application of the evidence theory. In this paper, through introducing a newly defined evidence frame which divides the frame of discernment into known a...
The incompleteness of the frame of discernment is one of the main difficulties confronted in the application of the evidence theory. In this paper, through introducing a newly defined evidence frame which divides the frame of discernment into known a...
Automatic Classification of Chinese Documents Based on Rough Set and Improved Quick-Reduce Algorithm
2005, 27(7): 1047-1052.
Abstract:
Much of the previous automatic Text Classification (TC) methods are closely connected with the construction of document vectors. With each term corresponding to a unit in the vector, this method maps the document vectors into a very high dimensional ...
Much of the previous automatic Text Classification (TC) methods are closely connected with the construction of document vectors. With each term corresponding to a unit in the vector, this method maps the document vectors into a very high dimensional ...
2005, 27(7): 1053-1057.
Abstract:
H.264/AVC is the newest video coding standard with high compression efficiency. Because it will take a long time to code with extremely complex algorithm, it can not achieve real-time application. In this paper, according to the characteristic of int...
H.264/AVC is the newest video coding standard with high compression efficiency. Because it will take a long time to code with extremely complex algorithm, it can not achieve real-time application. In this paper, according to the characteristic of int...
2005, 27(7): 1058-1060.
Abstract:
A new Single-Input-Multiple-Output (SIMO) model by oversampling the output of an IIR channel is proposed. This new model is much simpler than existing one and it makes blind IIR channel identification easier to be achieved. Extensive discussions and ...
A new Single-Input-Multiple-Output (SIMO) model by oversampling the output of an IIR channel is proposed. This new model is much simpler than existing one and it makes blind IIR channel identification easier to be achieved. Extensive discussions and ...
2005, 27(7): 1061-1064.
Abstract:
This paper proves that Ordered Statistic with Greatest Option CFAR(OSGO-CFAR) and Ordered Statistic with Smallest Option CFAR(OSSO-CFAR) are also of CFAR under homeomorphic independent K-distributed clutter background when the shape parameter is know...
This paper proves that Ordered Statistic with Greatest Option CFAR(OSGO-CFAR) and Ordered Statistic with Smallest Option CFAR(OSSO-CFAR) are also of CFAR under homeomorphic independent K-distributed clutter background when the shape parameter is know...
2005, 27(7): 1065-1068.
Abstract:
This paper proposed a new automatic target detection and orientation method based on image entropy variation and window energy detection. This method decides whether target is existing by the variation of entropy in ground penetrating radar image bef...
This paper proposed a new automatic target detection and orientation method based on image entropy variation and window energy detection. This method decides whether target is existing by the variation of entropy in ground penetrating radar image bef...
2005, 27(7): 1069-1072.
Abstract:
A simple polarimetric CFAR detector for coherent radar against a Gaussian background is presented. The expression of PFA for the detector is derived. It is shown that the proposed detector has the constant false alarm properties with respect to the c...
A simple polarimetric CFAR detector for coherent radar against a Gaussian background is presented. The expression of PFA for the detector is derived. It is shown that the proposed detector has the constant false alarm properties with respect to the c...
2005, 27(7): 1073-1076.
Abstract:
Single Phase Center Multiple Beams(SPCMB) technique is one of solutions to implement high resolution wide swath spaceborne synthetic aperture radar systems. The system model and signal characteristics are described based on the introduction to the pr...
Single Phase Center Multiple Beams(SPCMB) technique is one of solutions to implement high resolution wide swath spaceborne synthetic aperture radar systems. The system model and signal characteristics are described based on the introduction to the pr...
2005, 27(7): 1077-1080.
Abstract:
Considering the spread spectrum orientation systems using difference carrier phase to measure distance, this paper proposed a method for acquiring difference carrier phase by using pilot symbol. Using the spread-spectrum codes, signals from different...
Considering the spread spectrum orientation systems using difference carrier phase to measure distance, this paper proposed a method for acquiring difference carrier phase by using pilot symbol. Using the spread-spectrum codes, signals from different...
2005, 27(7): 1081-1086.
Abstract:
The spectral correlation function of PN code-carrier FM is studied, especially for PRBC, SFM-PRBC and LFM-PRBC. Based on the relation between SCF and AF, and LPTV theory of stationary stochastic process, in detail, the SCF of the above three compound...
The spectral correlation function of PN code-carrier FM is studied, especially for PRBC, SFM-PRBC and LFM-PRBC. Based on the relation between SCF and AF, and LPTV theory of stationary stochastic process, in detail, the SCF of the above three compound...
2005, 27(7): 1087-1092.
Abstract:
The reconnaissance signal recogniton of PN code-carrier FM based on Spectral Correlation (SC) method is studied, especially for Pseudo-Randorm Bi-phace Code (PRBC), SFM-PRBC and LFM-PRBC. Based on the character-extraction and analysis of the a-sectio...
The reconnaissance signal recogniton of PN code-carrier FM based on Spectral Correlation (SC) method is studied, especially for Pseudo-Randorm Bi-phace Code (PRBC), SFM-PRBC and LFM-PRBC. Based on the character-extraction and analysis of the a-sectio...
2005, 27(7): 1093-1097.
Abstract:
In this paper, the MIMO system model and three criteria for space-time code design are introduced. Then, according to these criteria, combining trellis-coded modulation with space-time block code, a new kind of full-diversity full-rate space-time cod...
In this paper, the MIMO system model and three criteria for space-time code design are introduced. Then, according to these criteria, combining trellis-coded modulation with space-time block code, a new kind of full-diversity full-rate space-time cod...
2005, 27(7): 1098-1100.
Abstract:
Space-Time Block Codes (STBC) is a scheme based on diversity-oriented transmission while VBLAST is another scheme based on spatial multiplexing; The performances of the two different MIMO systems are both degraded in correlated channels, however the ...
Space-Time Block Codes (STBC) is a scheme based on diversity-oriented transmission while VBLAST is another scheme based on spatial multiplexing; The performances of the two different MIMO systems are both degraded in correlated channels, however the ...
2005, 27(7): 1101-1105.
Abstract:
This paper investigates blind multiuser detection for asynchronous DS-CDMA in frequency selective Rayleigh fading channel. A method of estimating the desired signal vector is presented. The method not only exploits the characteristics of multipath pr...
This paper investigates blind multiuser detection for asynchronous DS-CDMA in frequency selective Rayleigh fading channel. A method of estimating the desired signal vector is presented. The method not only exploits the characteristics of multipath pr...
2005, 27(7): 1106-1109.
Abstract:
Efficient power control is very important in the design of cellular radio systems. In this paper, a power balancing method is proposed in Multi-Input Multi-Output (MIMO) cellular systems,and BER performance is analysed. Simulation results indicate th...
Efficient power control is very important in the design of cellular radio systems. In this paper, a power balancing method is proposed in Multi-Input Multi-Output (MIMO) cellular systems,and BER performance is analysed. Simulation results indicate th...
2005, 27(7): 1110-1113.
Abstract:
The adoption of B. Steiner channel estimation algorithm is prevalent in TD-SCDMA system. However, the estimated channel impulse responses are affected by the noise in the channel, therefore their amplitudes and delays are larger than the real channel...
The adoption of B. Steiner channel estimation algorithm is prevalent in TD-SCDMA system. However, the estimated channel impulse responses are affected by the noise in the channel, therefore their amplitudes and delays are larger than the real channel...
2005, 27(7): 1114-1117.
Abstract:
A new generalized sphere decoding algorithm is proposed for under-determined MIMO systems with fewer receive antennas TV than transmit antennas M. The proposed algorithm is significantly faster than the existing generalized sphere decoding algorithms...
A new generalized sphere decoding algorithm is proposed for under-determined MIMO systems with fewer receive antennas TV than transmit antennas M. The proposed algorithm is significantly faster than the existing generalized sphere decoding algorithms...
2005, 27(7): 1118-1122.
Abstract:
Multi-antenna technique is an effective means of improving performance of the downlink transmission. Both Beam-Forming (BF) and Transmit Diversity (TD) which exploit multiple antennas are attractive candidates for improving the system performance and...
Multi-antenna technique is an effective means of improving performance of the downlink transmission. Both Beam-Forming (BF) and Transmit Diversity (TD) which exploit multiple antennas are attractive candidates for improving the system performance and...
2005, 27(7): 1123-1126.
Abstract:
A high performance blind adaptive multiuser detection algorithm is proposed by introducing robust Kalman filter based on a compensation technique of a fictitious noise to estimate the optimal decision vector of asynchronous CDMA multiple-users receiv...
A high performance blind adaptive multiuser detection algorithm is proposed by introducing robust Kalman filter based on a compensation technique of a fictitious noise to estimate the optimal decision vector of asynchronous CDMA multiple-users receiv...
2005, 27(7): 1127-1130.
Abstract:
A new q-ary generalized self-shrinking generator is presented. The main difference between the new generator and the old one is the output mode. It is shown that there is good correlation between sequences in the large sequence family, and sequences ...
A new q-ary generalized self-shrinking generator is presented. The main difference between the new generator and the old one is the output mode. It is shown that there is good correlation between sequences in the large sequence family, and sequences ...
2005, 27(7): 1131-1135.
Abstract:
Automatic Switched Optical Network(ASON) is the key technology for the next generation optical network, and the recommendations for ASON are also developed by ITU-T, but for management plane, the related recommendations have not been constituted. In ...
Automatic Switched Optical Network(ASON) is the key technology for the next generation optical network, and the recommendations for ASON are also developed by ITU-T, but for management plane, the related recommendations have not been constituted. In ...
2005, 27(7): 1136-1140.
Abstract:
This paper proposes an algorithm, called Dynamic Shared Sub-Path Protection (DSSPP), for protecting a single Shared Risk Link Group (SRLG) failure in survivable WDM mesh networks. DSSPP firstly searches a primary path for a connection request, and it...
This paper proposes an algorithm, called Dynamic Shared Sub-Path Protection (DSSPP), for protecting a single Shared Risk Link Group (SRLG) failure in survivable WDM mesh networks. DSSPP firstly searches a primary path for a connection request, and it...
2005, 27(7): 1141-1146.
Abstract:
This paper addresses a Service Level Specification (SLS)-based quantitative edge-to-edge QoS management mechanism in access network. By using Ethernet Passive Optical Network(EPON), it well settles the insufficiency of bandwidth in IP, it selects a s...
This paper addresses a Service Level Specification (SLS)-based quantitative edge-to-edge QoS management mechanism in access network. By using Ethernet Passive Optical Network(EPON), it well settles the insufficiency of bandwidth in IP, it selects a s...
2005, 27(7): 1147-1151.
Abstract:
After studying the MAC protocol of Ad hoc network and by modifying the Wireless Token Ring Protocol (WTRP), a new uncontested Distributed Parallel Wireless Polling Access Protocol (DPWPAP) that can provide MAC QoS guarantees for Ad hoc network is pre...
After studying the MAC protocol of Ad hoc network and by modifying the Wireless Token Ring Protocol (WTRP), a new uncontested Distributed Parallel Wireless Polling Access Protocol (DPWPAP) that can provide MAC QoS guarantees for Ad hoc network is pre...
2005, 27(7): 1152-1156.
Abstract:
The requirement of high quality random numbers grows day by day, so true random number generator takes great attentions; And the appearance and development of system on a chip needs the realization of on-chip random number generator. Considering the ...
The requirement of high quality random numbers grows day by day, so true random number generator takes great attentions; And the appearance and development of system on a chip needs the realization of on-chip random number generator. Considering the ...
2005, 27(7): 1157-1161.
Abstract:
This paper presents a new test pattern generation technique based on ant algorithm and genetic algorithm for improving the test generation efficiency for sequential circuits. Experimental results for the sequential benchmark circuits show that the hy...
This paper presents a new test pattern generation technique based on ant algorithm and genetic algorithm for improving the test generation efficiency for sequential circuits. Experimental results for the sequential benchmark circuits show that the hy...
2005, 27(7): 1162-1166.
Abstract:
The circuit structure of a kind of PCI bus multi-user data Buffer Manager (BM) is analyzed in this paper, and typical simulating waveform is presented. The method to allocate the data buffers, port bandwidth, maximum user waiting time and minimum use...
The circuit structure of a kind of PCI bus multi-user data Buffer Manager (BM) is analyzed in this paper, and typical simulating waveform is presented. The method to allocate the data buffers, port bandwidth, maximum user waiting time and minimum use...
2005, 27(7): 1167-1170.
Abstract:
The coupling path of crosstalk in PCB is analyzed both in the frequency and the time domains in this paper. The influence of the coupling capacitance and the resistances near and far from the source in the victim circuit is investigated. The optimiza...
The coupling path of crosstalk in PCB is analyzed both in the frequency and the time domains in this paper. The influence of the coupling capacitance and the resistances near and far from the source in the victim circuit is investigated. The optimiza...
2005, 27(7): 1171-1173.
Abstract:
The ground penetrating radar is greatly expected as an effective tool for nondestructively sensing subsurface environment, detecting and identifying underground objects such as water pipes, power and communication lines, archaeological remains, and s...
The ground penetrating radar is greatly expected as an effective tool for nondestructively sensing subsurface environment, detecting and identifying underground objects such as water pipes, power and communication lines, archaeological remains, and s...
2005, 27(7): 1174-1176.
Abstract:
In this paper, the method of neural network in the computer code MATLAB is used to simulate experimental data, which is applied to the design of traveling-wave tube. Compared with the conventional method of quadratic interpolation, it is a practical ...
In this paper, the method of neural network in the computer code MATLAB is used to simulate experimental data, which is applied to the design of traveling-wave tube. Compared with the conventional method of quadratic interpolation, it is a practical ...
