Passive multistatic radar imaging algorithm based on non-uniform fast fourier transform method

被引：0

作者：

Wu, Hao ^{[1
]}

Su, Wei-Min ^{[1
]}

Gu, Hong ^{[1
]}

Bo, Chao ^{[1
]}

机构：

[1] School of Electronic Engineering and Optoelectronic Technology, NUST, Nanjing 210094, China

来源：

Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and Technology | 2012年 / 36卷 / 06期

关键词：

Fast Fourier transforms - Numerical methods - Frequency domain analysis - Multistatic radars;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

To solve the problem of the passive radar imaging based on narrowband external illuminators that can't achieve an ideal resolution, this paper increases multiple external illuminators with different emission frequencies to achieve larger synthetic bandwidth. The relationship of Fourier transform between the scatter function and the collected data of receiving stations is deduced. A passive radar imaging algorithm based on the non-uniform fast Fourier transform is presented due to the fact that the collected data are non-uniform and sparse in the frequency domain. Numerical simulations show that compared with the direct Fourier reconstruction method, this algorithm has better imaging performances at the instant of small rotating angle in the area with dense civil illumination sources.

引用

页码：984 / 988