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2013 Vol. 35, No. 8
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2013, 35(8): 1779-1785.
doi: 10.3724/SP.J.1146.2012.01487
Abstract:
A new algorithm is proposed for SAR image registration based on monogenic signal theory. A monogenic phase congruency function is constructed using the characteristics to detect feature points in SAR image. On the other hand, a monogenic vector is co...
A new algorithm is proposed for SAR image registration based on monogenic signal theory. A monogenic phase congruency function is constructed using the characteristics to detect feature points in SAR image. On the other hand, a monogenic vector is co...
2013, 35(8): 1786-1792.
doi: 10.3724/SP.J.1146.2013.00191
Abstract:
In remote sensing image, there is significant difference between the scales of different objects, so any single-scale segmentation can barely produce satisfying result. This paper argues that appropriate segmentation scale can be selected according t...
In remote sensing image, there is significant difference between the scales of different objects, so any single-scale segmentation can barely produce satisfying result. This paper argues that appropriate segmentation scale can be selected according t...
2013, 35(8): 1793-1799.
doi: 10.3724/SP.J.1146.2012.01591
Abstract:
Rotating Fan-beam SCATterometer (RFSCAT) is a new radar scatterometer system for ocean surface vector wind measurement. Compared with other available scatterometers, RFSCAT can provide more combination of azimuth and incidence angles for a single sur...
Rotating Fan-beam SCATterometer (RFSCAT) is a new radar scatterometer system for ocean surface vector wind measurement. Compared with other available scatterometers, RFSCAT can provide more combination of azimuth and incidence angles for a single sur...
2013, 35(8): 1800-1805.
doi: 10.3724/SP.J.1146.2013.0391
Abstract:
In this paper, related issues of SAR retrieving ocean surface wind in near shore are discussed thoroughly. First, a method of estimating ocean surface wind direction in near shore is proposed, which uses wind direction of closed ocean surface to esti...
In this paper, related issues of SAR retrieving ocean surface wind in near shore are discussed thoroughly. First, a method of estimating ocean surface wind direction in near shore is proposed, which uses wind direction of closed ocean surface to esti...
2013, 35(8): 1806-1812.
doi: 10.3724/SP.J.1146.2012.01507
Abstract:
MIMO radar imaging using ISAR technique combines the space sampling of MIMO radar and the time sampling of ISAR techniques, which can save many antenna elements and improve image resolution. However, there will be the nonequivalent relationship betwe...
MIMO radar imaging using ISAR technique combines the space sampling of MIMO radar and the time sampling of ISAR techniques, which can save many antenna elements and improve image resolution. However, there will be the nonequivalent relationship betwe...
2013, 35(8): 1813-1819.
doi: 10.3724/SP.J.1146.2012.01500
Abstract:
A new Inverse Synthetic Aperture Radar (ISAR) target recognition method with the fusion of Gabor magnitude and phase feature is proposed. Firstly, the corresponding Gabor Magnitude Maps (GMMs) and Gabor phase information are obtained by convolving th...
A new Inverse Synthetic Aperture Radar (ISAR) target recognition method with the fusion of Gabor magnitude and phase feature is proposed. Firstly, the corresponding Gabor Magnitude Maps (GMMs) and Gabor phase information are obtained by convolving th...
2013, 35(8): 1820-1826.
doi: 10.3724/SP.J.1146.2012.01492
Abstract:
The one-Step Generalized Likelihood Ratio Test (1S-GLRT) and two-Step GLRT (2S-GLRT) are proposed for the problem of adaptive detection for airborne radar with jamming in partially homogeneous environments. Basing on these detectors, the Reduced-Rank...
The one-Step Generalized Likelihood Ratio Test (1S-GLRT) and two-Step GLRT (2S-GLRT) are proposed for the problem of adaptive detection for airborne radar with jamming in partially homogeneous environments. Basing on these detectors, the Reduced-Rank...
2013, 35(8): 1827-1833.
doi: 10.3724/SP.J.1146.2012.01201
Abstract:
The FRaction Fourier Transform (FRFT) is optimal in the detection and parameter estimation of Linear Frequency Modulation (LFM) signal, but it is suboptimal for Linear Frequency Modulation Continuous Wave (LFMCW). LFMCW signal is a periodic extension...
The FRaction Fourier Transform (FRFT) is optimal in the detection and parameter estimation of Linear Frequency Modulation (LFM) signal, but it is suboptimal for Linear Frequency Modulation Continuous Wave (LFMCW). LFMCW signal is a periodic extension...
2013, 35(8): 1834-1840.
doi: 10.3724/SP.J.1146.2012.01498
Abstract:
The conventional characteristics analysis methods for moving target in Frequency Modulation Continuous Wave (FMCW) SAR all carry out in space-domain, leading to approximated and partial results. Therefore, a novel analysis approach based on an accura...
The conventional characteristics analysis methods for moving target in Frequency Modulation Continuous Wave (FMCW) SAR all carry out in space-domain, leading to approximated and partial results. Therefore, a novel analysis approach based on an accura...
2013, 35(8): 1841-1846.
doi: 10.3724/SP.J.1146.2012.016648
Abstract:
A novel algorithm for estimation of Azimuth Direction Of Departure (ADOD), Azimuth Direction Of Arrival (ADOA) and Elevation Direction Of Arrival (EDOA) based on bistatic MIMO radar with electromagnetic vector sensors is presented. The linear transmi...
A novel algorithm for estimation of Azimuth Direction Of Departure (ADOD), Azimuth Direction Of Arrival (ADOA) and Elevation Direction Of Arrival (EDOA) based on bistatic MIMO radar with electromagnetic vector sensors is presented. The linear transmi...
2013, 35(8): 1847-1853.
doi: 10.3724/SP.J.1146.2012.00523
Abstract:
The parameter estimation performance for the moving bistatic MIMO radar is studied. First, the bistatic MIMO radar signal model with both the transmit and receive arrays being moving is given and the general Cramer- Rao Bound (CRB) expression for the...
The parameter estimation performance for the moving bistatic MIMO radar is studied. First, the bistatic MIMO radar signal model with both the transmit and receive arrays being moving is given and the general Cramer- Rao Bound (CRB) expression for the...
2013, 35(8): 1854-1861.
doi: 10.3724/SP.J.1146.2012.01252
Abstract:
Inverse Synthetic Aperture Radar (ISAR) imaging in short coherent processing interval has a great deal of major advantages in application. In this paper, a novel cross-range scaling algorithm for ISAR imaging with limited pulses and short aperture is...
Inverse Synthetic Aperture Radar (ISAR) imaging in short coherent processing interval has a great deal of major advantages in application. In this paper, a novel cross-range scaling algorithm for ISAR imaging with limited pulses and short aperture is...
2013, 35(8): 1862-1868.
doi: 10.3724/SP.J.1146.2012.01424
Abstract:
Multi-channel SAR in azimuth, which can be used to suppress the Doppler ambiguity to get the High-Resolution Wide-Swath (HRWS) SAR images, suffers from the amplitude and phase mismatch among the channels. Based on the analysis of the characteristics ...
Multi-channel SAR in azimuth, which can be used to suppress the Doppler ambiguity to get the High-Resolution Wide-Swath (HRWS) SAR images, suffers from the amplitude and phase mismatch among the channels. Based on the analysis of the characteristics ...
2013, 35(8): 1869-1874.
doi: 10.3724/SP.J.1146.2012.01643
Abstract:
The distribution of ground clutter in angle-doppler space depends on the information of platform velocity, radar parameters and so on, which is known as the prior information. In this paper a model with matrix form of the ground clutter data is estab...
The distribution of ground clutter in angle-doppler space depends on the information of platform velocity, radar parameters and so on, which is known as the prior information. In this paper a model with matrix form of the ground clutter data is estab...
2013, 35(8): 1875-1881.
doi: 10.3724/SP.J.1146.2012.01470
Abstract:
This paper proposes a joint cluster and power allocation algorithm for multiple targets tracking in multistatic radar system. By selecting an optimal subset of radars with predetermined size to cluster around each target and implementing the power al...
This paper proposes a joint cluster and power allocation algorithm for multiple targets tracking in multistatic radar system. By selecting an optimal subset of radars with predetermined size to cluster around each target and implementing the power al...
2013, 35(8): 1882-1887.
doi: 10.3724/SP.J.1146.2012.01708
Abstract:
A modulation classification scheme based on the chaotic theory is presented in low SNR condition by taking the advantage of the chaotic oscillator at noise management. The principle and method of the modulation classification to MPSK signal are given...
A modulation classification scheme based on the chaotic theory is presented in low SNR condition by taking the advantage of the chaotic oscillator at noise management. The principle and method of the modulation classification to MPSK signal are given...
2013, 35(8): 1888-1893.
doi: 10.3724/SP.J.1146.2012.01399
Abstract:
Restricted by the current A/D sampling, parameter estimation of sub-sampling wideband Linear Frequency Modulated (LFM) signal has important research value. Based on that the LFM signal has approximate rectangular spectrum, the differentiation spectru...
Restricted by the current A/D sampling, parameter estimation of sub-sampling wideband Linear Frequency Modulated (LFM) signal has important research value. Based on that the LFM signal has approximate rectangular spectrum, the differentiation spectru...
2013, 35(8): 1894-1900.
doi: 10.3724/SP.J.1146.2012.01475
Abstract:
In order to reduce the transmission data in the multi-view video, the number of multi-views can be decreased properly which include texture images and depth maps, and the intermediate virtual views are generated based on Depth Image Based Rendering (...
In order to reduce the transmission data in the multi-view video, the number of multi-views can be decreased properly which include texture images and depth maps, and the intermediate virtual views are generated based on Depth Image Based Rendering (...
2013, 35(8): 1901-1906.
doi: 10.3724/SP.J.1146.2012.01526
Abstract:
Shape feature is one of the important characteristics which are used to describe images in MPEG7. The descriptor of Cluster of Concentric Discrete Circles (CCDC) can be extracted in a short time. However, the method uses the variance of the ring arc ...
Shape feature is one of the important characteristics which are used to describe images in MPEG7. The descriptor of Cluster of Concentric Discrete Circles (CCDC) can be extracted in a short time. However, the method uses the variance of the ring arc ...
2013, 35(8): 1907-1913.
doi: 10.3724/SP.J.1146.2012.01508
Abstract:
How to reduce Markov features dimensionality while keeping their steganalytic ability is an important issue in the field of steganalysis. This paper generalizes the statistical hypothesis that images are isotropic from spatial domain to Discrete Cosi...
How to reduce Markov features dimensionality while keeping their steganalytic ability is an important issue in the field of steganalysis. This paper generalizes the statistical hypothesis that images are isotropic from spatial domain to Discrete Cosi...
2013, 35(8): 1914-1920.
doi: 10.3724/SP.J.1146.2012.01564
Abstract:
According to the problem of camera jittering under natural environments when detecting moving objects, a background adaptive scheme is proposed in the paper. First, the Harris operator is used to detect corners in the region-of-interest for backgroun...
According to the problem of camera jittering under natural environments when detecting moving objects, a background adaptive scheme is proposed in the paper. First, the Harris operator is used to detect corners in the region-of-interest for backgroun...
2013, 35(8): 1921-1926.
doi: 10.3724/SP.J.1146.2012.01700
Abstract:
Pedestrian detection is a key ability for a variety of important applications, such as robotics, driver assistance systems and surveillance. This paper presents a fast pedestrian detection based on saliency detection and Histogram of Oriented Gradien...
Pedestrian detection is a key ability for a variety of important applications, such as robotics, driver assistance systems and surveillance. This paper presents a fast pedestrian detection based on saliency detection and Histogram of Oriented Gradien...
2013, 35(8): 1927-1932.
doi: 10.3724/SP.J.1146.2012.01341
Abstract:
Due to characteristics of binary code, it is difficult to deal with binary code variable through traditional interval analysis. To figure out this problem, a new interval analysis method of binary code variable based on abstract interpretation is pro...
Due to characteristics of binary code, it is difficult to deal with binary code variable through traditional interval analysis. To figure out this problem, a new interval analysis method of binary code variable based on abstract interpretation is pro...
2013, 35(8): 1933-1939.
doi: 10.3724/SP.J.1146.2012.01081
Abstract:
Intrusion tolerance is a new mechanism used to build secure computer networks. Therefore, its very important to analyze and evaluate the security performance of intrusion tolerant networks before intrusion tolerance is absolutely adopted. Thus, a sec...
Intrusion tolerance is a new mechanism used to build secure computer networks. Therefore, its very important to analyze and evaluate the security performance of intrusion tolerant networks before intrusion tolerance is absolutely adopted. Thus, a sec...
2013, 35(8): 1940-1945.
doi: 10.3724/SP.J.1146.2012.01560
Abstract:
Lattice reduction algorithms play an important role in the field of cryptanalysis. In this paper, based on the strategies of genetic algorithm, a new lattice reduction algorithm is proposed through the transformation of the initial lattice basis. The...
Lattice reduction algorithms play an important role in the field of cryptanalysis. In this paper, based on the strategies of genetic algorithm, a new lattice reduction algorithm is proposed through the transformation of the initial lattice basis. The...
2013, 35(8): 1946-1951.
doi: 10.3724/SP.J.1146.2012.01612
Abstract:
This paper analyzes the mechanism of physical layer secrecy coding and calculates the secrecy rate for the Gaussian wiretap channel under the security gap constraint. Furthermore, a classified normalized decoding algorithm with two-dimensional inform...
This paper analyzes the mechanism of physical layer secrecy coding and calculates the secrecy rate for the Gaussian wiretap channel under the security gap constraint. Furthermore, a classified normalized decoding algorithm with two-dimensional inform...
2013, 35(8): 1952-1957.
doi: 10.3724/SP.J.1146.2013.00287
Abstract:
Interleaving technology plays an important role in most digital communication systems. The data stream is sent to an interleaver that rearranges the data in order to cope with burst errors and improve the reliability of data transmission. Considering...
Interleaving technology plays an important role in most digital communication systems. The data stream is sent to an interleaver that rearranges the data in order to cope with burst errors and improve the reliability of data transmission. Considering...
2013, 35(8): 1958-1963.
doi: 10.3724/SP.J.1146.2012.01617
Abstract:
In current energy detection algorithms, the environmental noise level is often assumed as prior information. However, it is a parameter which needs to be measured in practical application. In the situation of using the known free spectrum to measure ...
In current energy detection algorithms, the environmental noise level is often assumed as prior information. However, it is a parameter which needs to be measured in practical application. In the situation of using the known free spectrum to measure ...
2013, 35(8): 1964-1970.
doi: 10.3724/SP.J.1146.2012.01472
Abstract:
Finding the optimal codebook is one of the key problems for interference alignment with limited feedback, it is equivalent to line packing issue in the Grassmannian manifold. Because analytical construction of the optimal codebook is possible only in...
Finding the optimal codebook is one of the key problems for interference alignment with limited feedback, it is equivalent to line packing issue in the Grassmannian manifold. Because analytical construction of the optimal codebook is possible only in...
2013, 35(8): 1971-1976.
doi: 10.3724/SP.J.1146.2012.01613
Abstract:
For frequency reuse one systems, the inter-cell interference is one of the restricting factors of the system performance. This paper presents a statistical modeling of the path loss of uplink inter-cell interference link from single interference cell...
For frequency reuse one systems, the inter-cell interference is one of the restricting factors of the system performance. This paper presents a statistical modeling of the path loss of uplink inter-cell interference link from single interference cell...
2013, 35(8): 1977-1982.
doi: 10.3724/SP.J.1146.2012.01335
Abstract:
Available Opportunistic Routing (OR) works adopted a relay scheme, which is derived from the traditional wireless routing algorithms. In such scheme, each node is assigned with a global metric or next-hop nodes set. In this paper, it is proved that t...
Available Opportunistic Routing (OR) works adopted a relay scheme, which is derived from the traditional wireless routing algorithms. In such scheme, each node is assigned with a global metric or next-hop nodes set. In this paper, it is proved that t...
2013, 35(8): 1983-1988.
doi: 10.3724/SP.J.1146.2012.01425
Abstract:
A Time Window based Unmanned Aerial Vehicle (UAV) task Coalition Formation algorithm (TWCF) is proposed to solve effectively the problem of task assignment under the scenario of multiple targets and UAVs. The main idea of TWCF is to use the free time...
A Time Window based Unmanned Aerial Vehicle (UAV) task Coalition Formation algorithm (TWCF) is proposed to solve effectively the problem of task assignment under the scenario of multiple targets and UAVs. The main idea of TWCF is to use the free time...
2013, 35(8): 1989-1996.
doi: 10.3724/SP.J.1146.2012.01506
Abstract:
A hybrid cooperative strategy for Heterogeneous Network (HetNet) is proposed to improve its energy efficiency. By studying the two well-known cooperative strategies: Coordinated Multi-Point Joint Processing (CoMP-JP) and Coordinated Beamforming (CoMP...
A hybrid cooperative strategy for Heterogeneous Network (HetNet) is proposed to improve its energy efficiency. By studying the two well-known cooperative strategies: Coordinated Multi-Point Joint Processing (CoMP-JP) and Coordinated Beamforming (CoMP...
2013, 35(8): 1997-2004.
doi: 10.3724/SP.J.1146.2012.01460
Abstract:
Because devices limited ability and networks dynamic topology can not ensure persistent high-quality heterogeneous services in Mobile Ad hoc NETwork (MANET), a Dynamic Backup-based Service Contingency Mechanism (DBSCM) is proposed, which includes thr...
Because devices limited ability and networks dynamic topology can not ensure persistent high-quality heterogeneous services in Mobile Ad hoc NETwork (MANET), a Dynamic Backup-based Service Contingency Mechanism (DBSCM) is proposed, which includes thr...
2013, 35(8): 2005-2012.
doi: 10.3724/SP.J.1146.2012.01455
Abstract:
In order to speed up the inference algorithm of the link delay distribution based on discrete delay model, a fast inference algorithm based on hierarchy decomposition is proposed. This algorithm decomposes the end-to-end path delay into subtree units...
In order to speed up the inference algorithm of the link delay distribution based on discrete delay model, a fast inference algorithm based on hierarchy decomposition is proposed. This algorithm decomposes the end-to-end path delay into subtree units...
2013, 35(8): 2013-2018.
doi: 10.3724/SP.J.1146.2012.01518
Abstract:
An ultra-wideband and low RCS (Radar Cross Section) printed antenna is designed and fabricated using the periodically loaded fractal complementary Frequency Selective Surfaces (FSS) on the upper patch and bottom ground plane, respectively. Simulated ...
An ultra-wideband and low RCS (Radar Cross Section) printed antenna is designed and fabricated using the periodically loaded fractal complementary Frequency Selective Surfaces (FSS) on the upper patch and bottom ground plane, respectively. Simulated ...
2013, 35(8): 2019-2023.
doi: 10.3724/SP.J.1146.2012.01741
Abstract:
To validate the validity of in human body communication in 2.5~6.0 GHz signal, the path loss characteristic and Specific Absorption Rate (SAR) are investigated by using a 3D ElectroMagnetic (EM) simulator based on Finite Integration Technique (FIT) a...
To validate the validity of in human body communication in 2.5~6.0 GHz signal, the path loss characteristic and Specific Absorption Rate (SAR) are investigated by using a 3D ElectroMagnetic (EM) simulator based on Finite Integration Technique (FIT) a...
2013, 35(8): 2024-2028.
doi: 10.3724/SP.J.1146.2012.01639
Abstract:
An Angle Of Arrival (AOA) estimation method for Ultra WideBand (UWB) positioning based on a mono-station Hexagonal monopole antenna array is proposed. The AOA information is obtained from the received pulse amplitudes combined with the antenna array ...
An Angle Of Arrival (AOA) estimation method for Ultra WideBand (UWB) positioning based on a mono-station Hexagonal monopole antenna array is proposed. The AOA information is obtained from the received pulse amplitudes combined with the antenna array ...
2013, 35(8): 2029-2032.
doi: 10.3724/SP.J.1146.2012.01235
Abstract:
The nonparametric detection methods for radar target are extensively used in radar system, due to the fact that they can ensure Constant False Alarm Rate (CFAR) for a wide class of input noise distributions and can be easily implemented. In this pape...
The nonparametric detection methods for radar target are extensively used in radar system, due to the fact that they can ensure Constant False Alarm Rate (CFAR) for a wide class of input noise distributions and can be easily implemented. In this pape...
