| 基于STBC的混沌MIMO雷达的信号处理研究 |
| |
| 引用本文： | 朱艳萍,宋耀良,赵德林,陈金立.基于STBC的混沌MIMO雷达的信号处理研究[J].武汉水运工程学院学报,2012(6):1127-1131. |
| |
| 作者姓名： | 朱艳萍 宋耀良 赵德林 陈金立 |
| |
| 作者单位： | [1]南京信息工程大学电信学院,南京210044 [2]南京理工大学电光学院,南京210094 |
| |
| 基金项目： | 国家自然科学基金项目（批准号：61071145）、教育部博士点基金项目（批准号：200802880014）、江苏省属高校自然科学研究面上项目（批准号：11KJB510008）资助 |
| |
| 摘 要： | 针对MIMO（multiple input multipleoutput）雷达正交信号设计的困难，提出了一种超宽带调制的混沌二相码，并结合STBC（space-time block coding）技术，能够达到发射信号的完全正交和最大空间分集．方法简单易行，具有较好的保密特性．仿真实验给出2×2系统下，信噪比为20dB时的回波信号波形，发现该方法较好地实现对复杂目标的识别．同时推导了该模型在奈曼皮尔逊准则下的目标检测概率，相对于窄带系统，检测概率显著提高．
|
| 关 键 词： | MIMO雷达 超宽带 混沌 STBC |
Research of Chaotic MIMO Radar Signal Processing Based on STBC |
| |
| Authors: | ZHU Yanping SONG Yaoliang ZHAO Delin CHEN Jinli |
| |
| Institution: | n (Nanjing University of Information Science and Technology, Nanjing 210044,China;Nanjing University of Science ＆ Technology, Nanjing 210094, China) |
| |
| Abstract: | In MIMO（multiple input multiple output ） radar system, it is not easy to design the com- pletely orthogonal waveform. To solve this problem, the chaotic binary-phase code modulated by UWB signal is proposed and used in MIMO radars with the space-time block coding（STBC）. The transmit signals can achieve entirely orthogonal waveforms and full space diversity. This method is easy to car- ry out and has good security features. Taken the system for example, the echo signals were simulated under 20dB SNR. The results show that this method can achieve better recognition of complex target. And then the detection probability expression in the Neyman-Pearson criterion is derived. Compared to narrowband system, this system has higher detection characteristic. |
| |
| Keywords: | MIMO radar UWB chaos STBC |
| 本文献已被 维普 等数据库收录！ |
