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2014 Vol. 36, No. 8
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2014, 36(8): 1779-1785.
doi: 10.3724/SP.J.1146.2013.01579
Abstract:
For coping with the severe inter-cell intereference in the future cellular systems, this paper studies the collaborative multicell downlink transmission for multiusers in multicell systems. This paper proposes an iterative scheme to optimize jointly ...
For coping with the severe inter-cell intereference in the future cellular systems, this paper studies the collaborative multicell downlink transmission for multiusers in multicell systems. This paper proposes an iterative scheme to optimize jointly ...
2014, 36(8): 1786-1791.
doi: 10.3724/SP.J.1146.2013.01371
Abstract:
For a dual-frequency Continuous Wave (CW) radar, ambiguity may occur in ranging measurement. In order to solve this problem and integrate radar and communication system, a new dual-frequency electronic system based on Extended Binary Phase Shift Keyi...
For a dual-frequency Continuous Wave (CW) radar, ambiguity may occur in ranging measurement. In order to solve this problem and integrate radar and communication system, a new dual-frequency electronic system based on Extended Binary Phase Shift Keyi...
2014, 36(8): 1792-1797.
doi: 10.3724/SP.J.1146.2013.01454
Abstract:
Using the second-order and third-order autocorrelation characteristics of m sequences, the maximum likehood estimation for the triple autocorrelation function of the Non-Periodic Long Code Direct Sequence Spread Spectral (NPLCDS-SS) signals is deduce...
Using the second-order and third-order autocorrelation characteristics of m sequences, the maximum likehood estimation for the triple autocorrelation function of the Non-Periodic Long Code Direct Sequence Spread Spectral (NPLCDS-SS) signals is deduce...
2014, 36(8): 1798-1803.
doi: 10.3724/SP.J.1146.2013.01577
Abstract:
The paper propose the definition of diffusion order and described the diffusion property of the linear permutation. Moreover, by analyzing effect of the linear permutation on the integral distinguisher length, the lower bounds for the round number of...
The paper propose the definition of diffusion order and described the diffusion property of the linear permutation. Moreover, by analyzing effect of the linear permutation on the integral distinguisher length, the lower bounds for the round number of...
2014, 36(8): 1804-1809.
doi: 10.3724/SP.J.1146.2014.00090
Abstract:
Quantizing the influence propagation weights between users plays an important role in commodity?marketing and promoting in social networks. However, most of current studies assume the mutual behaviors between users to influence each other are indepen...
Quantizing the influence propagation weights between users plays an important role in commodity?marketing and promoting in social networks. However, most of current studies assume the mutual behaviors between users to influence each other are indepen...
2014, 36(8): 1810-1816.
doi: 10.3724/SP.J.1146.2013.01362
Abstract:
The most recent studies in the trust networks focus on the trust inference and aggregation mechanisms, but the issues of correlations between trusted nodes and their structural analysis have not get much attention. To address this weakness, a new Mul...
The most recent studies in the trust networks focus on the trust inference and aggregation mechanisms, but the issues of correlations between trusted nodes and their structural analysis have not get much attention. To address this weakness, a new Mul...
2014, 36(8): 1817-1823.
doi: 10.3724/SP.J.1146.2013.01417
Abstract:
In order to improve the response performance and decrease the transmission interruption probability, a centralized spectrum allocation strategy with an access threshold and super-slot for cognitive radio networks is proposed by limiting the number of...
In order to improve the response performance and decrease the transmission interruption probability, a centralized spectrum allocation strategy with an access threshold and super-slot for cognitive radio networks is proposed by limiting the number of...
2014, 36(8): 1824-1830.
doi: 10.3724/SP.J.1146.2013.01398
Abstract:
6LoWPAN protocol supports IPv6 datagram delivering over IEEE 802.15.4-based low-power wireless personal area network, and its main functions include fragmenting and reassembling IPv6 datagrams, header compression, and routing. In this paper, the numb...
6LoWPAN protocol supports IPv6 datagram delivering over IEEE 802.15.4-based low-power wireless personal area network, and its main functions include fragmenting and reassembling IPv6 datagrams, header compression, and routing. In this paper, the numb...
2014, 36(8): 1831-1837.
doi: 10.3724/SP.J.1146.2013.01272
Abstract:
A multi-dimension association analysis method of users behavioral characteristics based on association rules is proposed for the discovery of information content security incidents in network. The users multi- dimension data which generate in communi...
A multi-dimension association analysis method of users behavioral characteristics based on association rules is proposed for the discovery of information content security incidents in network. The users multi- dimension data which generate in communi...
2014, 36(8): 1838-1843.
doi: 10.3724/SP.J.1146.2013.01416
Abstract:
Sparse representation based visual trackers are very computationally inefficient and prone to model drifting. To deal with these issues, a novel visual tracking method is proposed based on L2 -norm regularized robust coding. The proposed method solve...
Sparse representation based visual trackers are very computationally inefficient and prone to model drifting. To deal with these issues, a novel visual tracking method is proposed based on L2 -norm regularized robust coding. The proposed method solve...
2014, 36(8): 1844-1851.
doi: 10.3724/SP.J.1146.2013.01389
Abstract:
Person re-identification is among the key issues in video surveillance. From the viewpoint of fusing appearance statistical features, human color and structure information are exploited; two statistical descriptors named spatiogram and region covaria...
Person re-identification is among the key issues in video surveillance. From the viewpoint of fusing appearance statistical features, human color and structure information are exploited; two statistical descriptors named spatiogram and region covaria...
2014, 36(8): 1852-1858.
doi: 10.3724/SP.J.1146.2013.01614
Abstract:
As to the difficulty of confidence measure estimation regarding to Automatic Speech Recognition (ASR), a strategy resorting to multi-source knowledge combination to improve the confidence measure is proposed in this paper. More specially, the knowled...
As to the difficulty of confidence measure estimation regarding to Automatic Speech Recognition (ASR), a strategy resorting to multi-source knowledge combination to improve the confidence measure is proposed in this paper. More specially, the knowled...
2014, 36(8): 1859-1865.
doi: 10.3724/SP.J.1146.2013.01468
Abstract:
Three-dimensional Minimum Error Thresholding (3D-MET) is more robust to noise than MET and 2D-MET, but its computational complexity grows exponentially. By constructing look-up tables recursively, its fast algorithm 3D-RMET reduces the complexity fro...
Three-dimensional Minimum Error Thresholding (3D-MET) is more robust to noise than MET and 2D-MET, but its computational complexity grows exponentially. By constructing look-up tables recursively, its fast algorithm 3D-RMET reduces the complexity fro...
2014, 36(8): 1866-1871.
doi: 10.3724/SP.J.1146.2014.00154
Abstract:
This study firstly analyzes the model for Poisson noise removal by Le et al. (2007) from the view of calculus of variations, and gets a box constraint of the solution to the model. Then by incorporating the Alternating Direction Method of Multipliers...
This study firstly analyzes the model for Poisson noise removal by Le et al. (2007) from the view of calculus of variations, and gets a box constraint of the solution to the model. Then by incorporating the Alternating Direction Method of Multipliers...
2014, 36(8): 1872-1877.
doi: 10.3724/SP.J.1146.2013.01459
Abstract:
The traditional algorithm of the Per-Survivor Processing (PSP) model is analyzed, and the improved algorithm of nonbinary Soft-Output Viterbi Algorithm and PSP (SOVA-PSP) with soft output for feedforward are given. For the condition of the single way...
The traditional algorithm of the Per-Survivor Processing (PSP) model is analyzed, and the improved algorithm of nonbinary Soft-Output Viterbi Algorithm and PSP (SOVA-PSP) with soft output for feedforward are given. For the condition of the single way...
2014, 36(8): 1878-1883.
doi: 10.3724/SP.J.1146.2013.01436
Abstract:
Conventional time-frequency analysis is a powerful tool for Frequency-Hopping (FH) signal processing, however, it fails to realize the parameter estimation in stable noise environment. Time-frequency analysis based on Merid filter is proposed for FH ...
Conventional time-frequency analysis is a powerful tool for Frequency-Hopping (FH) signal processing, however, it fails to realize the parameter estimation in stable noise environment. Time-frequency analysis based on Merid filter is proposed for FH ...
2014, 36(8): 1884-1890.
doi: 10.3724/SP.J.1146.2013.01446
Abstract:
A Guided Self-adaptive Evolutionary Genetic Algorithm (GSEGA) is proposed. The principle of good point set is used to generate the initial population. Based on the elitist preserved method, a way of parallel crossing and mutation with population-segm...
A Guided Self-adaptive Evolutionary Genetic Algorithm (GSEGA) is proposed. The principle of good point set is used to generate the initial population. Based on the elitist preserved method, a way of parallel crossing and mutation with population-segm...
2014, 36(8): 1891-1898.
doi: 10.3724/SP.J.1146.2013.01433
Abstract:
In this paper, a novel framework for remote sensing image annotation is proposed based on spatial constrained multi-feature joint sparse coding to extend the sparse representation-based classifier to multi-feature framework. The proposed framework im...
In this paper, a novel framework for remote sensing image annotation is proposed based on spatial constrained multi-feature joint sparse coding to extend the sparse representation-based classifier to multi-feature framework. The proposed framework im...
2014, 36(8): 1899-1904.
doi: 10.3724/SP.J.1146.2013.01588
Abstract:
A Range Doppler imaging Algorithm (RDA) based on Graphic Processing Unit (GPU) is proposed, which is a new method of real-time imaging for Synthetic Aperture Sonar (SAS). The range compression, phase compensation and azimuth compression are implement...
A Range Doppler imaging Algorithm (RDA) based on Graphic Processing Unit (GPU) is proposed, which is a new method of real-time imaging for Synthetic Aperture Sonar (SAS). The range compression, phase compensation and azimuth compression are implement...
2014, 36(8): 1905-1911.
doi: 10.3724/SP.J.1146.2013.01456
Abstract:
A novel parametric focusing algorithm, using the Cross Spectrum MUSIC (CSMUSIC) method, is presented to obtain a finely focused image of ground moving target on spaceborne distributed SAR. By exploiting the space-time property of the azimuth echo sig...
A novel parametric focusing algorithm, using the Cross Spectrum MUSIC (CSMUSIC) method, is presented to obtain a finely focused image of ground moving target on spaceborne distributed SAR. By exploiting the space-time property of the azimuth echo sig...
2014, 36(8): 1912-1918.
doi: 10.3724/SP.J.1146.2013.01744
Abstract:
Firstly, in the framework of the Interacting Multiple Model (IMM) algorithm the constant-velocity model and the adaptive constant acceleration model are selected as the dynamic models for the un-maneuvering and maneuvering states of the un-cooperativ...
Firstly, in the framework of the Interacting Multiple Model (IMM) algorithm the constant-velocity model and the adaptive constant acceleration model are selected as the dynamic models for the un-maneuvering and maneuvering states of the un-cooperativ...
2014, 36(8): 1919-1925.
doi: 10.3724/SP.J.1146.2013.01450
Abstract:
Rotational motion estimation is essential for MIMO radar imaging with ISAR technique. According to the estimation, the echo data can be rearranged and interpolated, and the cross-range scaling can be implemented for range-Doppler imaging. For an obje...
Rotational motion estimation is essential for MIMO radar imaging with ISAR technique. According to the estimation, the echo data can be rearranged and interpolated, and the cross-range scaling can be implemented for range-Doppler imaging. For an obje...
2014, 36(8): 1926-1931.
doi: 10.3724/SP.J.1146.2013.01560
Abstract:
A hybrid signal processing architecture characterized by all transmit and any receive is proposed firstly for distributed aperture coherent radar when receivers are co-located with partial transmitters. Then the closed-form Cramer-Rao Bounds (CRB) of...
A hybrid signal processing architecture characterized by all transmit and any receive is proposed firstly for distributed aperture coherent radar when receivers are co-located with partial transmitters. Then the closed-form Cramer-Rao Bounds (CRB) of...
2014, 36(8): 1932-1938.
doi: 10.3724/SP.J.1146.2013.01231
Abstract:
A phase-based method using a single channel SAR is proposed to estimate the radial velocity of ground moving targets unambiguously. Two-look operation in the range frequency domain and interferometry in the Doppler domain are done made to keep the ph...
A phase-based method using a single channel SAR is proposed to estimate the radial velocity of ground moving targets unambiguously. Two-look operation in the range frequency domain and interferometry in the Doppler domain are done made to keep the ph...
2014, 36(8): 1939-1945.
doi: 10.3724/SP.J.1146.2013.01455
Abstract:
Track association is a precondition of the distributed multi-sensors track fusion. Given the fact that the fusion center is not able to get the target states estimation covariance, a global optimal track association algorithm based on sequential modi...
Track association is a precondition of the distributed multi-sensors track fusion. Given the fact that the fusion center is not able to get the target states estimation covariance, a global optimal track association algorithm based on sequential modi...
2014, 36(8): 1946-1953.
doi: 10.3724/SP.J.1146.2013.01415
Abstract:
Ultra-WideBand Multi-Input-Multi-Output (UWB MIMO) radar plays more and more important role in through-the-wall application presently, because of its well resolution performance, limited elements requirements and efficient ability for data capturing....
Ultra-WideBand Multi-Input-Multi-Output (UWB MIMO) radar plays more and more important role in through-the-wall application presently, because of its well resolution performance, limited elements requirements and efficient ability for data capturing....
2014, 36(8): 1954-1959.
doi: 10.3724/SP.J.1146.2013.01281
Abstract:
A reduced-dimensional Direction Of Arrival (DOA) estimation method in monostatic MIMO radar with L-shaped array based on MUSIC algorithm is proposed. Firstly, considering of the steering vector of L-shaped array, a reduced-dimensional matrix is emplo...
A reduced-dimensional Direction Of Arrival (DOA) estimation method in monostatic MIMO radar with L-shaped array based on MUSIC algorithm is proposed. Firstly, considering of the steering vector of L-shaped array, a reduced-dimensional matrix is emplo...
2014, 36(8): 1960-1965.
doi: 10.3724/SP.J.1146.2013.01478
Abstract:
Due to the high orbit and long synthetic aperture time of Geosynchronous SAR (Geo-SAR), the error brought by the Stop-Go assumption has to be considered. In this paper, an accurate signal propagation delay time equation of Geo-SAR based on circle orb...
Due to the high orbit and long synthetic aperture time of Geosynchronous SAR (Geo-SAR), the error brought by the Stop-Go assumption has to be considered. In this paper, an accurate signal propagation delay time equation of Geo-SAR based on circle orb...
2014, 36(8): 1966-1971.
doi: 10.3724/SP.J.1146.2013.01524
Abstract:
For the high sidelobe of waveforms after pulse compression of the numerical optimization methods in the designing orthogonal waveform for MIMO radar, a method of Golay complementary sequence with space time coding is proposed. The autocorrelation sid...
For the high sidelobe of waveforms after pulse compression of the numerical optimization methods in the designing orthogonal waveform for MIMO radar, a method of Golay complementary sequence with space time coding is proposed. The autocorrelation sid...
2014, 36(8): 1972-1977.
doi: 10.3724/SP.J.1146.2013.01573
Abstract:
The paper proposes a method of two-dimensional attitude steering to compensate Doppler centroid in Geosynchronous Earth Orbit Synthetic Aperture Radar (GEO SAR). By guaranteeing the beam illuminating the earths surface, Doppler centroid is compensate...
The paper proposes a method of two-dimensional attitude steering to compensate Doppler centroid in Geosynchronous Earth Orbit Synthetic Aperture Radar (GEO SAR). By guaranteeing the beam illuminating the earths surface, Doppler centroid is compensate...
2014, 36(8): 1978-1984.
doi: 10.3724/SP.J.1146.2013.01936
Abstract:
Active radar can improve the cross-range resolution in the squint and side-looking direction using Doppler Beam Sharpening (DBS) and Synthetic Aperture Radar (SAR) techniques, but can difficultly determine multiple targets in the forward-looking dire...
Active radar can improve the cross-range resolution in the squint and side-looking direction using Doppler Beam Sharpening (DBS) and Synthetic Aperture Radar (SAR) techniques, but can difficultly determine multiple targets in the forward-looking dire...
2014, 36(8): 1985-1991.
doi: 10.3724/SP.J.1146.2013.01466
Abstract:
As it is an important development trend of passive radar by using multiple FM radio signals to improve detection performance, this paper presents a study on the phase compensation methods for high range resolution signal synthesis of multi-frequency ...
As it is an important development trend of passive radar by using multiple FM radio signals to improve detection performance, this paper presents a study on the phase compensation methods for high range resolution signal synthesis of multi-frequency ...
2014, 36(8): 1992-1998.
doi: 10.3724/SP.J.1146.2014.00107
Abstract:
For the space-borne timekeeping system, the relativistic effect has an important impact on the clock measurement accuracy. This paper introduces the relativistic theory into the research on wide range time-space transfer due to clock measurement erro...
For the space-borne timekeeping system, the relativistic effect has an important impact on the clock measurement accuracy. This paper introduces the relativistic theory into the research on wide range time-space transfer due to clock measurement erro...
2014, 36(8): 1999-2004.
doi: 10.3724/SP.J.1146.2013.01473
Abstract:
In the terahertz band, most targets are in the scope of near field. The computation method of the far field RCS is not applicative, therefore, the computational formula of the near-field Radar Cross Section (RCS) is deduced. The occlusion judgment co...
In the terahertz band, most targets are in the scope of near field. The computation method of the far field RCS is not applicative, therefore, the computational formula of the near-field Radar Cross Section (RCS) is deduced. The occlusion judgment co...
2014, 36(8): 2005-2009.
doi: 10.3724/SP.J.1146.2013.01428
Abstract:
In order to rapidly and accurately solve the radio wave propagation problems in a large scale complex electromagnetic environment with key targets, a subgridding model of the Parabolic Equation (PE) method based on the non-uniform mesh technology is ...
In order to rapidly and accurately solve the radio wave propagation problems in a large scale complex electromagnetic environment with key targets, a subgridding model of the Parabolic Equation (PE) method based on the non-uniform mesh technology is ...
2014, 36(8): 2010-2015.
doi: 10.3724/SP.J.1146.2013.01460
Abstract:
In deep-submicron Integrated Circuit (IC) design regime, the portion of leakage power consumption increases rapidly, therefore, leakage power optimization becomes a crucial part of circuit design flow. This paper proposes a mixed method of leakage op...
In deep-submicron Integrated Circuit (IC) design regime, the portion of leakage power consumption increases rapidly, therefore, leakage power optimization becomes a crucial part of circuit design flow. This paper proposes a mixed method of leakage op...
2014, 36(8): 2016-2022.
doi: 10.3724/SP.J.1146.2013.02005
Abstract:
With the development of semiconductor technology, integration of an increasing number of IP (Intellectual Properties) cores into a single SoC (System-on-Chip) becomes feasible. The IP cores are connected via a bus, thus the preemption of bus among IP...
With the development of semiconductor technology, integration of an increasing number of IP (Intellectual Properties) cores into a single SoC (System-on-Chip) becomes feasible. The IP cores are connected via a bus, thus the preemption of bus among IP...
2014, 36(8): 2023-2027.
doi: 10.3724/SP.J.1146.2013.01438
Abstract:
A modeling and target detection algorithm based on adaptive adjustmentK- for Mixture Gaussian background is proposed for complex scenes with non-stationary background. The Mixture Gaussian Model (GMM) is applied to learn the distribution of per-pixel...
A modeling and target detection algorithm based on adaptive adjustmentK- for Mixture Gaussian background is proposed for complex scenes with non-stationary background. The Mixture Gaussian Model (GMM) is applied to learn the distribution of per-pixel...
2014, 36(8): 2028-2032.
doi: 10.3724/SP.J.1146.2013.01551
Abstract:
In order to realize highly accurate and stable clock signal extraction using Fiber Optical Parametric Oscillators (FOPOs), the idler-power-based automatic feedback control experiment is implemented for the first time. The automatic feedback control u...
In order to realize highly accurate and stable clock signal extraction using Fiber Optical Parametric Oscillators (FOPOs), the idler-power-based automatic feedback control experiment is implemented for the first time. The automatic feedback control u...
