JOURNAL OF RADARS

JOURNAL OF RADARS

Home | About Journal | Ethics Statement | Editorial Board | Reviewers | Instruction | Subscriptions | Contacts Us | Chinese

　

Office Online

　

　

　

　

　

Journal Online

　

　

　

　

　

Most Read Articles

　

Most Download Articles

　

Cited Ranking List

　

　

Quick Search

Advanced Search

	2012 Vol. 1 No. 4
	Published: 2012-12-18



	Paper Reviews Special Topic Papers：Synthetic Aperture Radar (SAR)

Reviews

	329	Zeng Tao
		Bistatic SAR: State of the Art and Development Trend ^Hot!
		Bistatic SAR (BiSAR) systems have attracted the interests from global researchers and become a hotspot in the international radar community due to the progress of radar technology and rapidly increased applications nowadays. Based on the BiSAR experiments and breakthrough of the key technology, the paper summarized the general progresses of BiSAR systems, especially in European radar community, from different aspects such as system design, processing idea and topology etc. Different bistatic image formation algorithms have been analyzed and reviewed. Finally, the development trend is discussed in the paper.
		2012 Vol. 1 (4): 329-341 [Abstract] ( 1934 ) [HTML]( ) [PDF 10850KB] ( 4857 )

	342	Zhu Min-hui
		Review of Ocean Dynamical SAR Detection ^Hot!
		Based on the ocean surface microwave scattering property and its Synthetic Aperture Radar (SAR) ocean surface imaging mechanism the main research of ocean dynamical SAR detection is presented in this paper. Passing the statistical and hydrodynamical analyses of generation mechanisms of ocean internal waves and ocean bottom topographic waves as well as ship wakes their important SAR imaging features and deducing parameters are here discussed. Therefore the SAR application of oceanic observation is promoted.
		2012 Vol. 1 (4): 342-352 [Abstract] ( 1452 ) [HTML]( ) [PDF 7537KB] ( 2870 )

	353	Wu Jin
		On the Development of Synthetic Aperture Ladar Imaging
		A brief overview on the development of Synthetic Aperture Ladar (SAL) imaging both domestically and abroad is introduced, where the quality of the obtained SAL image, the system architecture adopted and the overall progress on SAL development are reviewed. We suggest that a practical SAL should have proper imaging field of view and can be kind of adaptive to atmospheric turbulence so as to be accepted by possible end-users. We also urge that more outdoor SAL imaging experiments should be carried out and more imaging results should be published for the further development of SAL.
		2012 Vol. 1 (4): 353-360 [Abstract] ( 1947 ) [HTML]( ) [PDF 3841KB] ( 3980 )

Paper

	361	Luo Ying, Zhang Qun, Wang Guo-zheng, Guan Hua, Bai You-qing
		Micro-motion Signature Extraction Method for Wideband Radar Based on Complex Image OMP Decomposition ^Hot!
		In order to extract the micro-motion signatures in condition of Migration Through Range Cells (MTRC) of micro-motional scatterers and azimuthal undersampling in wideband radar, a method based on the Orthogonal Matching Pursuit (OMP) decomposition of the complex image is proposed. By making use of the amplitude and phase information of “range-slow-time image”, a set of micro-Doppler signal atoms is constructed in the complex image space. The OMP algorithm in vector space is then extend to the complex image space to obtain the micro-motion parameters. Simulations demonstrate the proposed method can extract the micro-motion signatures when MTRC of micro-motional scatterers is occurred, and can also work well when the sampling rate is lower than the Nyquist sampling rate.
		2012 Vol. 1 (4): 361-369 [Abstract] ( 1729 ) [HTML]( ) [PDF 1988KB] ( 2787 )

	370	Shao Qi-hong, Wan Xian-rong, Zhang De-lei, Zhao Zhi-xin, Ke Heng-yu
		Experimental Study on Shortwave Communication and OTHR Integrated System Based on OFDM Waveform
		Based on the recently developed active-passive multifunctional all-digital HF surface wave radar hardware platform of Wuhan University, an experiment study of integrated technology for shortwave communication and Over-The-Horizon Radar (OTHR) application is carried out. Firstly, from the point of communication are demonstrated the key technologies of orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) in the short-wave communication. Secondly, from the point of radar detection are analyzed OFDM parameters design guidelines and its impact on the over-the-horizon radar detection performance. After the description of some key technologies related to communication signal demodulation and radar signal processing, the configuration parameters of hardware platform and experimental results are provided. The results show that the OFDM wave is done well in radar-communication integration systems, which is of great significance on the netted OTHR detection research.
		2012 Vol. 1 (4): 370-379 [Abstract] ( 1989 ) [HTML]( ) [PDF 2823KB] ( 3383 )

	380	Jin Wei, lü Xiao-de , Xiang Mao-sheng
		Ambiguity Function and Resolution Characteristic Analysis of DVB-S Signal for Passive Radar
		This paper gives the performance research on the ambiguity function and resolution of passive radar based on DVB-S (Digital Video Broadcasting-Satellite) signal. The radar system structure and signal model of DVB-S signal are firstly studied, then the ambiguity function of DVB-S signal is analyzed. At last, it has been obtained how the bistatic radar position impacts the resolution. Theoretical analyses and computer simulation show that DVB-S signal is applicable as an illuminator for passive radar.
		2012 Vol. 1 (4): 380-386 [Abstract] ( 2193 ) [HTML]( ) [PDF 1397KB] ( 2707 )

	387	Zhang Lin, Zhao Zhi-jian, Guan Jian, He You
		An Intelligent Nonparametric GS Detection Algorithm Based on Adaptive Threshold Selection
		In modern radar systems, the clutter’s statistic characters are unknown. With this clutter, the capability of CFAR of parametric detection algorithms will decline. So nonparametric detection algorithms become very important. An intelligent nonparametric Generalized Sign (GS) detection algorithm Variability Index-Generalized Sign (VI-GS) based on adaptive threshold selection is proposed. The VI-GS detection algorithm comploys a composite approach based on the GS detection algorithm, the Trimmed GS detection algorithm (TGS) and the Greatest Of GS detection algorithm (GO-GS). The performance of this detection algorithm in the nonhomogenous clutter background is analyzed respectively based on simulated Gaussian distributed clutter and real radar data. These results show that it performs robustly in the homogeneous background as well as the nonhomogeneous background.
		2012 Vol. 1 (4): 387-392 [Abstract] ( 1650 ) [HTML]( ) [PDF 1147KB] ( 2875 )

	393	Yuan Ding-bo, Meng Cang-zhen, Xu Jia, Peng Ying-ning
		Target Association of Heterogeneous Sensors Based on Nearest-neighbor and Topology
		A new data association algorithm is proposed in this paper for heterogeneous sensors information fusion system, which consists of Radar and high-dynamic-range IR, based on joint usage of the nearest-neighbor (NN) and the topology similarity. The proposed algorithm can avoid the complicated system biases compensation based on topology information. Because the NN method is sensitive to the system bias while the existing topology-based algorithms need a large amount of computation, the proposed algorithm shows a lot of advantages, like high estimation accuracy and robustness as well as the improvement of success association rate. Finally, some numerical experiments are provided to demonstrate the effectiveness of the proposed method. And the estimation accuracy can be as high as 90%.
		2012 Vol. 1 (4): 393-398 [Abstract] ( 1769 ) [HTML]( ) [PDF 1348KB] ( 2569 )

	399	Meng Cang-zhen, Yuan Ding-bo, Xu Jia, Peng Shi-bao, Wang Xiao-jun
		A New Target-correlation Algorithm for Heterogeneous Sensors Based on Neural Network Classification
		In the data fusion system composed of radar and infrared sensor installed in high speed of dynamic platform, the system error estimation and target correlation are dependent and are difficult very much. To solve the problem, a new target correlation algorithm based on pattern classification is proposed in the article according to the property of system errors variation. The approach realizes pattern classification by BP neural network. It needn’t estimate the system error and compensate it, and has a tolerance to system error. The experiment shows that the average correct probability for target-correlation in the data fusion between the above two kind of sensors is more than 86%.
		2012 Vol. 1 (4): 399-405 [Abstract] ( 1935 ) [HTML]( ) [PDF 1056KB] ( 2578 )

	406	Wu Wei, Yin Cheng-you
		An Improved SMC-PHD Filter for Multiple Targets Tracking
		Two improved contributions have been advanced for the standard Sequential Monte Carlo Probability Hypothesis Density (SMC-PHD) filter. Firstly, a novel method is advanced for the cardinality and state estimation. A weight matrix is firstly calculated by measurements and persistent particles, and the weight sum of each row is then evaluated, the measurements indexed by row will be judged as true if its weight sum is larger than a certain threshold, and the weight sum of persistent particle states will be reported as the true target states. Secondly, an assistant variable which is used to denote the persistent age for every particle is introduced, by the help of this age variable, the overrated problem of targets number in dense clutter environment can be effectively restricted. The results of numerical simulation prove that the improved SMC-PHD filter has higher tracking performance than the standard one.
		2012 Vol. 1 (4): 406-413 [Abstract] ( 1679 ) [HTML]( ) [PDF 1635KB] ( 2529 )

	414	Cui Shan-shan, Zhou Jian-jiang, Zhu Jie-hao
		Radar Target Recognition Based on Semiparametric Density Estimation of SLC
		In order to solve the problem of the decline of accuracy when using the nonparametric method—Stochastic Learning of the Cumulative (SLC) to estimate the density of High-Resolution Range Profile (HRRP) in radar target recognition under the condition that the samples are not enough, a radar target recognition approach based on the semiparametric density estimation of SLC is proposed in this paper. This method has the ability to make use of empirical knowledge which is known as the approximate Gamma distribution of amplitudes in each HRRP range cells, and the Gamma density estimate is then corrected by multiplying with SLC of a correction factor. Obviously, both advantages of parametric method and nonparametric method of SLC are merged in the semiparametric density estimation of SLC. Simulation results based on the HRRP dataset of five aircraft models demonstrate the effectiveness of the proposed approach.
		2012 Vol. 1 (4): 414-419 [Abstract] ( 1527 ) [HTML]( ) [PDF 1038KB] ( 2561 )

	420	Wang Yu-jun, Zhu Li-li, Jiang Lei
		The Study on Characteristic Blanking Technique in Frequency Shifting Jamming for LFM Radar
		Shift-frequency jamming is an effective jamming to the Linear Frequency Modulation (LFM) radar. However, the feature of carrier frequency offset of the traditional shift-frequency jamming may be used to identify the jamming signal. So a new method is proposed to hide or subtract the feature of the traditional shift-frequency jamming in this paper. For the purpose of hiding or subtracting the carrier frequency offset, the pulse width of jamming signal will be truncated with a proper magnitude. Furthermore, the new method can also disturb original conversion relationship between carrier frequency offset and the frequency shifting of the jamming signal to reduce the ability of identifying false target. Compared with the traditional shift-frequency jamming, the new method has pulse width mismatch between the jamming signal and the echo. But the loss of the mismatch is acceptable. The new method is testified with the theory analysis and simulation results.
		2012 Vol. 1 (4): 420-425 [Abstract] ( 1589 ) [HTML]( ) [PDF 277KB] ( 2811 )

Special Topic Papers：Synthetic Aperture Radar (SAR)

	426	Zhang Wen-yi, Hu Dong-hui, Ding Chi-biao
		Enhancement of SAR Ship Wake Image Based on FABEMD and Goldstein Filter
		Enhanced SAR ship wake images with blur Kelvin wakes and reserved turbulent wakes are very important to the inversions of ship and motion parameters. This paper applies the Fast and Adaptive Bidimensional Empirical Mode Decomposition (FABEMD) to decompose the SAR ship wake image into Kelvin wakes, turbulent wakes and other multiscale features, which enhances the gray intensity and spectrum contrast of Kelvin wakes to other features. Based on the FABEMD, a modified Goldstein interferogram filter is developed to further enhance the Kelvin wakes. Moreover, the moment invariants are introduced to evaluate the enhancement. Therefore, the Kelvin wakes are dramatically enhanced and the turbulent wakes are reserved. Algorithm analysis, experiments, subjective and objective evaluations show the reasonable efficiency and capabilities.
		2012 Vol. 1 (4): 426-435 [Abstract] ( 1798 ) [HTML]( ) [PDF 5415KB] ( 3171 )

	436	Dong Chun-zhu, Yin Hong-cheng, Wang Chao
		A Fast Hidden Surface Removal Approach for Complex SAR Scene Based on Adaptive Ray-tube Splitting Method
		Traditional hidden surface removal algorithm based on hardware Z-Buffer technique cannot give attention to precision or efficiency at the same time when dealing with the non-uniform triangulated SAR scene model. A novel high-precision hidden surface removal approach using fast ray-tube splitting algorithm is proposed, where the SAR scene hidden surface removal problem is decomposed into two simple procedures, i.e. a Delaunay triangulator is used to generate the initial ray tubes from the projected point clouds of all incident visible vertices, then an adaptive ray-tube splitting method is adopted to carry out the complex scene shading situations and resultant visible model reconstruction. Simulation results of typical aircraft and T-72 tank show that, the new approach is feasible and effective.
		2012 Vol. 1 (4): 436-440 [Abstract] ( 1360 ) [HTML]( ) [PDF 1495KB] ( 2776 )

	441	Hu Ji-wei, Hong Jun, Ming Feng, Li Liang
		Model-based CP Selection Method for Calibration of Airborne InSAR with Sparse GCPs
		High-precision height acquisition needs to correct the interferometric parameters errors by interferometric calibration for Interferometric Synthetic Aperture Radar (InSAR) system with many Ground Control Points (GCPs). For the situation that some areas probably only have little GCPs or even no GCPs, a new high-precision calibration method for airborne InSAR based on bundle adjustment is needed, in which the Control Points (CP) selection method is a major point which has a crucial influence on the precision of InSAR calibration. A model-based CP selection method for calibration of airborne InSAR with sparse GCPs is proposed in this paper, which adopts the polynomial model fit method to choose CP based on the sensitivity characteristic of inSAR interferometric parameters. A joint calibration is made with the real InSAR data and the results confirm the validity and rationality of the proposed method.
		2012 Vol. 1 (4): 441-445 [Abstract] ( 1796 ) [HTML]( ) [PDF 1607KB] ( 2965 )

雷达学报

　

Announcements

　

·	Notice of Fifth Young Scientists Forum of Journal of Radars

·	Call for Papers of Special Issues of Journal of Radars in 2019

·	Call for Papers of Advanced Technologies on Radar Detection and Imaging

·	Journal of Radars is Cited by Guide to the Core Journals of China

·	Book Recommendation of Introduction to Sparse Microwave Imaging

·	Journal's Impact Factor 2015-2017 in CSCD, CSTPCD, ARCAJ

·	Call for Papers of Special Issue on Passive Radar Technology

·	Notice of the Second Training Seminar on Complex Electromagnetic Environment Effect of Ground Radar

　　　　　　　　　　More

　

Journal News

　

·	Journal of Radars Exhibited in the "Where Is Radar" Summit Forum Held in Beijing

·	Journal of Radars Exhibited in the 4th IET International Radar Conference and 2018 International Radar and Signal Processing Forum

·	Journal of Radars Exhibited in the 5th China High Resolution Earth Observation Conference

·	The 4th Young Scientists Forum of Journal of Radars Was Successfully Held at University of Electronic Science and Technology of China

·	2018 International Microwave Forum Was Held in Beijing

·	First Automotive Radar High-end Forum Was Held at the IECAS

·	Small Satellites and Earth Observation Academic Report Was Held at the IECAS

·	Journal of Radars Participated on BIGSARDATA 2017 Symposium

　　　　　　　　　　more

　

Downloads

　

·	Classification Contents of Journal of Radars

·	Publication Ethics Statement

·	Prove of Confidentiality Review and Intellectual Property

·	Template

·	Abbreviations

　

Links

　

·	Web of Science

·	Engineering Village

·	Chinese Science Citation Database (CSCD)

·	Elsevier

·	Springer

·	IEEE Xplore

　　　　　　　　　　More

Copyright © 2011 JOURNAL OF RADARS
Support by Beijing Magtech Co.Ltd E-mail：support@magtech.com.cn