| 波形正交性退化下机载MIMO雷达杂波模型与自由度分析 |
| |
| 引用本文： | 张西川,张永顺,谢文冲,王永良,张增辉.波形正交性退化下机载MIMO雷达杂波模型与自由度分析[J].系统工程与电子技术,2012,34(1):80-84. |
| |
| 作者姓名： | 张西川 张永顺 谢文冲 王永良 张增辉 |
| |
| 作者单位： | 1. 空军工程大学导弹学院， 陕西 三原 713800;
2. 空军雷达学院， 湖北 武汉 430019,;
3. 国防科学技术大学理学院， 湖南 长沙 410073 |
| |
| 基金项目： | 国家杰出青年科学基金(60925005)资助课题 |
| |
| 摘 要： | 针对发射波形正交性退化影响机载多输入多输出（multiple input multiple output，MIMO）雷达的杂波特性，基于信号空间和子阵空间的变换原理，建立了波形正交性退化下的机载MIMO雷达杂波通用模型和标准模型。基于带限信号的最优逼近特性，分析了波形正交性退化下的空时等效阵列孔径变化规律，提出了杂波自由度（degree of freedom， DOF）的估计准则。最后,仿真验证了杂波模型及杂波自由度估计准则的有效性。
|
| 关 键 词： | 机载多输入多输出雷达 波形正交性退化 杂波模型 杂波自由度 |
Analysis of clutter model and DOFs for airborne MIMO radar under orthogonal degradation of waveform |
| |
| ZHANG Xi-chuan,ZHANG Yong-shun,XIE Wen-chong,WANG Yong-liang,ZHANG Zeng-hui.Analysis of clutter model and DOFs for airborne MIMO radar under orthogonal degradation of waveform[J].System Engineering and Electronics,2012,34(1):80-84. |
| |
| Authors: | ZHANG Xi-chuan ZHANG Yong-shun XIE Wen-chong WANG Yong-liang ZHANG Zeng-hui |
| |
| Institution: | 1. Missile Institute, Air Force Engineering University, Sanyuan 713800, China;
2. Air Force Radar Academy, Wuhan 430019, China;
3. School of Science, National University of Defense Technology, Changsha 410073, China |
| |
| Abstract: | Aiming at the clutter characteristics of airborne multiple-input multiple-output(MIMO) radar under the orthogonal degradation of waveform,the general and standard clutter models of airborne MIMO radar are presented under the orthogonal degradation of waveform based on the transformed principle of subarray space and transmit signal space.Then the regularity of change for space-time equivalence aperture is analyzed under the orthogonal degradation of waveform based on the optimum approached property of the band-limit signal,and an estimation rule for the degree of freedom(DOF) of clutter is presented.Finally,simulation results show the effectivity of the proposed models and rules. |
| |
| Keywords: | airborne multiple-input multiple-output radar orthogonal degradation of transmitted waveform clutter model degree of freedom of clutter |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《系统工程与电子技术》浏览原始摘要信息 |
| 点击此处可从《系统工程与电子技术》下载免费的PDF全文 |
