The Distributed Passive Radar 3-D Imaging and Analysis in Wavenumber Domain

摘要：

This paper studies the distributed passive radar threedimensional (3-D) imaging under the 3-D configuration formed by the illuminators of opportunity and the distributed receivers. The echoes received by the distributed channels actually constitute the target wavenumber-domain coverage, whose characteristics such as range, uniformity and compactness greatly affect the inversion performance. Generally, the wavenumber-domain coverage of the passive radar system is small-scale, sparse and nonuniform, in which case the traditional IFFT method becomes invalid. Therefore, we propose a novel imaging method, named Spherical Coordinates Method (SCM). Furthermore, so as to get higher resolution and better imaging quality, a broader, more uniform and compact coverage in wavenumber domain is required and this can be achieved through the following three methods: increasing the number of the receivers, making use of the motion information and optimizing the disposition of the receivers. Numerical simulations verify the effectiveness of the presented method and the rationality of the theoretical analysis.

关键词： distributed passive radar 3-D imaging spherical coordinates method wavenumber domain motion information optimization of the receivers’disposition

作者: Liu Changchang Xu Hao He Xuezhi Chen Weidong

作者单位: Dept.of EEIS, University of Science and Technology of China, HeFei, Anhui, 230027, P.R.China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 2051-2054

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）