| CFAR处理中检测门限系数的研究 |
| |
| 引用本文： | 胡航.CFAR处理中检测门限系数的研究[J].火控雷达技术,2005,34(2):1-3. |
| |
| 作者姓名： | 胡航 |
| |
| 作者单位： | 哈尔滨工业大学,哈尔滨,150001 |
| |
| 摘 要： | 雷达系统在进行恒虚警处理时，通常采用的参考单元数是有限的。此时若采用理论的检测门限，将使虚警率大大增加。本文中我们通过仿真的方法确定CFAR中的实际门限系数，研究有限的参考单元数对虚警性能的影响。给出邻近单元平均恒虚警，选大恒虚警，选小恒虚警与加权单元平均恒虚警等四种检测器在不同参考单元数下的门限系数值。同时得出了不同恒虚警率下的门限系数。
|
| 关 键 词： | 恒虚警检测 门限系数 虚警概率 参考单元数 雷达信号处理机 |
| 文章编号： | 1008-8652(2005)02-001-003 |
| 修稿时间： | 2004年11月19 |
Study on Detection Threshold Coefficient in CFAR Processing |
| |
| Hu Hang.Study on Detection Threshold Coefficient in CFAR Processing[J].Fire Control Radar Technology,2005,34(2):1-3. |
| |
| Authors: | Hu Hang |
| |
| Abstract: | The number of range cells is usually finite for CFAR processing in radar system. Therefore, employing theoretical detection threshold will greatly increase the false alarm probability. In order to guarantee the false alarm probability of CFAR detector, we determine practical threshold coefficients by using simulations. The influence of finite number of range cells on false alarm performance in the case of different false alarm probabilities is studied. We give detection threshold coefficients of four kinds of CFAR detectors including CA-CFAR, GO-CFAR, SO-CFAR and WCA-CFAR with different number of range cells, and obtain the threshold coefficients for different false alarm probabilities. |
| |
| Keywords: | CFAR detection threshold coefficients false alarm probability number of range cells |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
