摘要
该文首先介绍了工作在毫米波段的汽车防撞雷达的有关情况,然后针对其在实际工作情况下遇到的虚警问题,提出了一种新的雷达发射信号波形,即多斜率步进调频连续波信号。该波形可以容易地数字化产生,同时其相应的信号处理降低了传统的高分辨率雷达对高速宽带信号处理的要求。该文还提出了一种用于多个车辆目标检测的逐次逼近算法,仿真结果表明,该算法能够有效地去除虚假目标。
In this paper, automotive collision warning radar systems which operate on millimeter wave band is introduced first, then a new radar transmit waveform, which can be called multi-slope stepped-FMCW waveform, applied for those systems to solve the false alarm problem is proposed. The new waveform is easy to be generated digitally and its signal processing reduces the high-speed and wide-band signal processing requirement compared with conventional high resolution radar. An error approach algorithm for multiple vehicle target detection is suggested and its usefulness in eliminating the false target is confirmed by computer simulation.
出处
《电子与信息学报》
EI
CSCD
北大核心
2002年第2期232-237,共6页
Journal of Electronics & Information Technology
