| 波形具有任意相关性时MIMO雷达的检测性能 |
| |
| 引用本文： | 屈金佑,张剑云,刘春生. 波形具有任意相关性时MIMO雷达的检测性能[J]. 电路与系统学报, 2009, 14(2) |
| |
| 作者姓名： | 屈金佑 张剑云 刘春生 |
| |
| 作者单位： | 电子工程学院,安徽,合肥,230037 |
| |
| 摘 要： | 基于Neyman-Pearson准则,研究了空间分集MIMO(多输入多输出)雷达发射波形相关时的自、互相关旁瓣对MIMO雷达检测性能的影响.首先,分析了波形的相关性,导致了在空间上和时间上的白高斯噪声变为相关色噪声,同时,使得接收的回波信号具有一定的相关性,影响了空间分集的效果;然后,通过理论分析得到了MIMO雷达在波形具有任意相关性时的检测概率和虚警概率的解析表达式.通过数值计算,得到如下结论:与发射正交波形相比,在高信噪比(SNR)工作时,M1MO雷达波形相关时的自、互相关旁瓣使得MIMO雷达的检测性能下降;在低SNR时,波形的相关性能够改善检测性能;波形的低自、互相关旁瓣对MIMO雷达的检测性能影响不大.
|
| 关 键 词： | MIMO雷达 空间分集 充分统计量 Neyman-Pearson准则 自、互相关旁瓣 |
The detection performance of MIMO radar with arbitrarily correlated waveforms |
| |
| Qu Jin-you,ZHANG Jian-yun,LIU Chun-sheng. The detection performance of MIMO radar with arbitrarily correlated waveforms[J]. Journal of Circuits and Systems, 2009, 14(2) |
| |
| Authors: | Qu Jin-you ZHANG Jian-yun LIU Chun-sheng |
| |
| Affiliation: | QU Jin-you,ZHANG Jian-yun,LIU Chun-sheng(Electronic Engineering Institute,Hefei 230037,China) |
| |
| Abstract: | The detection performance of spatial diversity multiple-input multiple-output(MIMO) radar for arbitrarily correlated waveform is analyzed based on Neyman-Pearson criterion.Firstly,the correlation of multiple waveforms makes the white noises in time and space be colored and the echoes be correlated,which affects the effectiveness of spatial diversity.Secondly,the closed expression of detection probability and false alarm probability are derived.Through simulation we can draw conclusions that the PSL deterior... |
| |
| Keywords: | multiple-input multiple-output radar(MIMO radar) spatial diversity sufficient statistic Neyman-Pearson criterion auto-correlation /cross-correlation peak side-lobe level(PSL) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
