电子科技大学学报2017，Vol.46Issue(1)：27-31,60,6.DOI:10.3969/j.issn.1001-0548.2017.01.005
基于互信息理论的MIMO天波超视距雷达波形优化方法
MIMO Sky-Wave Over-the-Horizon Radar Waveforms Optimization Method Based on the Mutual Information Theory
罗杨 1赵志钦1
作者信息
- 1. 电子科技大学电子工程学院 成都 611731
- 折叠
摘要
Abstract
Multiple input multiple output (MIMO) sky-wave over-the-horizon radar (OTHR) transmits the wide beams with low gain at the transmitter, and achieves receiver beam-forming to get narrow beams with high gain. The MIMO technique is an ideal choice for OTHR to detect the target through the multi-layer ionosphere and suppress the strong clutters. This paper applies a two-layer ionospheric model in MIMO-OTHR, and proposes a mutual information method to adaptively optimize the waveforms in order to suppress strong clutters with high clutter-to-noise ratio (CNR). Numerical experiments show that this method improves range resolution and detection probability significantly. It also demonstrates that, by applying the optimization method, the multipath propagation can be utilized to enhance the radar performance.关键词
多输入多输出雷达/互信息/超视距雷达/两层电离层/波形优化Key words
multiple input multiple output radar/mutual information/over-the-horizon radar/two-layer ionosphere/waveform optimization分类
信息技术与安全科学引用本文复制引用
罗杨,赵志钦..基于互信息理论的MIMO天波超视距雷达波形优化方法[J].电子科技大学学报,2017,46(1):27-31,60,6.
