摘要
首先通过时频方法分析了毫米波汽车防撞雷达的实测数据,根据实际分析得到的杂波分布规律提出一种毫米波汽车防撞雷达的门限设计方法,它能够根据背景杂波功率的变化进行自动的改变门限使毫米波汽车防撞雷达的虚警率保持恒定,并且给出了利用该方法进行门限设定时实际的测试结果.同时给出了该自适应恒虚警器的性能分析,结果表明这种方法在实际工程中完全可行.
The testing data of millimeter-wave collision-warning radar were firstly analyzed by time-frequency method. Then a constant false alarm rate (CFAR) scheme for millimeter wave collision-avoidance radar was designed on the basis of the clutter statistics distribution rule. This proposed method can change the threshold with the clutter to make the false alarm rate constant. The testing result and the performance of this CFAR processor were presented. It is shown that this method is practical in the project.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第3期217-220,共4页
Journal of Infrared and Millimeter Waves
基金
国家863计划(2002AA135270)
上海市科技发展基金(015115049)
关键词
门限
毫米波汽车防撞雷达
时频方法
恒虚警率
threshold
millimeter-wave collision warning radar
time-frequency method
CFAR
