分布式雷達相參發(fā)射原理與性能分析

臧會凱; 雷歡; 但曉東; 周生華; 劉宏偉

doi:10.11999/JEIT141563

分布式雷達相參發(fā)射原理與性能分析

doi: 10.11999/JEIT141563 cstr: 32379.14.JEIT141563

基金項目:

國家自然科學基金(61401329, 61271291, 61372136)

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- 文章訪問數: 2090
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- 被引次數: 0
出版歷程
- 收稿日期: 2014-12-08
- 修回日期: 2015-03-12
- 刊出日期: 2015-08-19

Theory and Performance Analysis of Coherent Transmission for Distributed Radars

摘要

摘要: 通過調整空間距離較遠的雷達發(fā)射天線的發(fā)射時間和初始相位可控制電磁波能量在空間的分布來增強感興趣空間區(qū)域的信號能量。該文分析分布式雷達相參發(fā)射的原理，給出形成干涉峰點的條件，定義空間干涉能量分布函數來反映發(fā)射信號能量較平均能量的增益，其最大值為發(fā)射天線個數。在遠場和近場條件下分析信號空間能量分布的特點，表明它在遠場近天線距離呈條紋狀，在近場遠天線距離呈類晶體結構或獨峰結構。為了讓目標在干涉峰點內部，分布式相參發(fā)射在低頻率、小目標的跟蹤狀態(tài)更有效。
- 分布式雷達 /
- 分布式相參發(fā)射 /
- 空間干涉能量分布函數 /
- 干涉峰點
Abstract: By adjusting the transmitting time and the initial phase of distributed radar antennas, the spatial distribution of signal energy transmission can be controlled and then the signal energy can be improved in the spatial region of interest. The fundamentals of distributed coherent transmitting are analyzed, the conditions are presented to form an interference peak, and a spatial interference energy distribution function is defined to represent the gain of the transmitting energy compared to the mean energy, which has a maximum of the number of transmitting antennas. The characteristic of the spatial interference energy distribution function is analyzed in both radar near field and radar far field, indicating that the spatial interference energy distribution function exhibits a stripe shape in radar far field with collocated antennas, and an ellipse shape or a mono-peak shape in radar near field with widely separated antennas. To make a real target contained in a signal interference peak, the distributed coherent transmission works better for lower frequencies and smaller targets in the target tracking mode.

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參考文獻(23)

周生華, 劉宏偉. MIMO雷達目標空間和頻率散射多樣性研究 [J]. 電子與信息學報, 2010, 32(1): 38-42.

Zhou Sheng-hua and Liu Hong-wei. Scattering properties of spatial and frequency diversity of MIMO radar targets[J]. Journal of Electronics Information Technology, 2010, 32(1): 38-42.

Fishler E, Haimovich A, Blum R, et al.. MIMO radar: an idea whose time has come[C]. Proceedings of the IEEE Radar Conference, Philadelphia, USA, 2004: 71-78.

Haimovich A M, Blum R S, and Cimini L J. MIMO radar with widely separated antennas[J]. IEEE Signal Processing Magazine, 2008, 25(1): 116-129.

胡亮兵, 劉宏偉, 劉寶昌, 等. MIMO雷達發(fā)射方向圖匹配和波形優(yōu)化方法[J]. 西安電子科技大學學報, 2009, 36(6): 1022-1028.

Hu Liang-bing, Liu Hong-wei, Liu Bao-chang, et al.. Transmit beampattern matching design and waveform optimization for MIMO radar[J]. Journal of Xidian University, 2009, 36(6): 1022-1028.

Deng H. Polyphase code design for orthogonal netted radar systems[J]. IEEE Transactions on Signal Processing, 2004, 52(11): 3126-3135.

Zhou S H, Liu H W, Zhao Y B, et al.. Target spatial and frequency scattering diversity property for diversity MIMO radar[J]. Signal Processing, 2011, 91(2): 269-276.

Fishler E, Haimovich A, and Blum R S. Spatial diversity in radars-models and detection performance[J]. IEEE Transactions on Signal Processing, 2006, 54(3): 823-838.

魯耀兵, 張履謙, 周蔭清, 等. 分布式陣列相參合成雷達技術研究[J]. 系統(tǒng)工程與電子技術, 2013, 35(8): 1657-1662.

Lu Yao-bing, Zhang L-qian, Zhou Yin-qing, et al.. Study on distributed aperture coherence-synthetic radar technology[J]. Systems Engineering and Electronics, 2013, 35(8): 1657-1662.

孫培林, 湯俊, 張寧. 分布式相參雷達相參性能的兩種監(jiān)控算法[J]. 清華大學學報(自然科學版), 2014, 54(4): 419-424.

Sun Pei-lin, Tang Jun, and Zhang Ning. Two algorithms for monitoring the coherence performance of distributed coherent radar systems[J]. Journal of Tsinghua University(Science Technology), 2014, 54(4): 419-424.

曾濤, 殷丕磊, 楊小鵬, 等. 分布式全相參雷達系統(tǒng)時間與相位同步方案研究[J]. 雷達學報, 2013, 2(1): 105-110.

Zeng Tao, Yin Pi-lei, Yang Xiao-peng, et al.. Time and phase synchronization for distributed aperture coherent radar[J]. Journal of Radars, 2013, 2(1): 105-110.

Coutts S, Cuomo K, McHarg J, et al.. Distributed coherent aperture measurements for next generation BMD radar[C]. Processings of the Fourth IEEE Workshop in Sensor Array and Multichannel, Waltham, USA, 2006: 390-393.

陳根華, 陳伯孝, 楊明磊. 分布式相參陣列及其二維高精度方向估計[J]. 電子與信息學報, 2012, 34(11): 2621-2627.

Chen Gen-hua, Chen Bai-xiao, and Yang Ming-lei. High accuracy 2-D angle estimation using distributed coherent arrays[J]. Journal of Electronics Information Technology, 2012, 34(11): 2621-2627.

宋靖, 張劍云, 鄭志東, 等. 分布式全相參雷達相干參數估計性能[J]. 電子與信息學報, 2014, 36(8): 1926-1931.

Song Jing, Zhang Jian-yun, Zheng Zhi-dong, et al.. Coherent parameters estimation performance for distributed aperture coherent radar[J]. Journal of Electronics Information Technology, 2014, 36(8): 1926-1931.

Yang Yang and Blum R S. Phase synchronization for coherent MIMO radar algorithms and their analysis[J]. IEEE Transactions on Signal Processing, 2011, 59(11): 5538-5557.

Huleihel W, Tabrikian J, and Shavit R. Optimal adaptive waveform design for cognitive MIMO radar[J]. IEEE Transactions on Signal Processing, 2013, 61(20): 5075-5089.

Kong S, Lee S, Kim C Y, et al.. Wireless cooperative synchronization of coherent UWB MIMO radar[J]. IEEE Transactions on Microwave Theory and Techniques, 2014, 62(1): 154-165.

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