分布式雷达相参发射原理与性能分析

臧会凯; 雷欢; 但晓东; 周生华; 刘宏伟

doi:10.11999/JEIT141563

分布式雷达相参发射原理与性能分析

doi: 10.11999/JEIT141563

基金项目:

国家自然科学基金(61401329, 61271291, 61372136)

计量
- 文章访问数: 1936
- HTML全文浏览量: 228
- PDF下载量: 533
- 被引次数: 0
出版历程
- 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: 通过调整空间距离较远的雷达发射天线的发射时间和初始相位可控制电磁波能量在空间的分布来增强感兴趣空间区域的信号能量。该文分析分布式雷达相参发射的原理，给出形成干涉峰点的条件，定义空间干涉能量分布函数来反映发射信号能量较平均能量的增益，其最大值为发射天线个数。在远场和近场条件下分析信号空间能量分布的特点，表明它在远场近天线距离呈条纹状，在近场远天线距离呈类晶体结构或独峰结构。为了让目标在干涉峰点内部，分布式相参发射在低频率、小目标的跟踪状态更有效。
- 分布式雷达 /
- 分布式相参发射 /
- 空间干涉能量分布函数 /
- 干涉峰点
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.

HTML全文

参考文献(23)

周生华, 刘宏伟. MIMO雷达目标空间和频率散射多样性研究 [J]. 电子与信息学报, 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, 刘宏伟, 刘宝昌, 等. MIMO雷达发射方向图匹配和波形优化方法[J]. 西安电子科技大学学报, 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.

鲁耀兵, 张履谦, 周荫清, 等. 分布式阵列相参合成雷达技术研究[J]. 系统工程与电子技术, 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.

孙培林, 汤俊, 张宁. 分布式相参雷达相参性能的两种监控算法[J]. 清华大学学报(自然科学版), 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.

曾涛, 殷丕磊, 杨小鹏, 等. 分布式全相参雷达系统时间与相位同步方案研究[J]. 雷达学报, 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.

陈根华, 陈伯孝, 杨明磊. 分布式相参阵列及其二维高精度方向估计[J]. 电子与信息学报, 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, 张剑云, 郑志东, 等. 分布式全相参雷达相干参数估计性能[J]. 电子与信息学报, 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.

施引文献

资源附件(0)

访问统计