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论述了调频连续波雷达系统的组成原理,完成了毫米波雷达信号处理机采集系统的硬件设计和算法研究,并在此基础上提出了一种基于时频分析技术的概率统计法,用该法对实际的 35GHz FMCW汽车防撞毫米波雷达系统的中频信号进行了分析.研究结果表明,采用本文的方法只需采样一次就可以有效解决实际雷达系统中频信号频谱的随机抖动,减少对目标的误判,是一种具有应用前景的新方法。
The composition principle of FM continuous wave radar system is discussed and the hardware design and algorithm research of the millimeter wave radar signal processor acquisition system are completed. Based on this, a probability statistics method based on time-frequency analysis technology is proposed. The IF signal of the actual 35GHz FMCW anti-collision millimeter-wave radar system is analyzed.The results show that the proposed method can effectively solve the random jitter of the IF signal spectrum and reduce the error of the target Judgment, is a new method with application prospects.