range spectrum meaning in Chinese

射程谱

Lfmcw radar adopts the receiver with the structure of “ homodyne - fourier ” , and acquires the range spectrum after its if signal is sampled , and then processed by ftt
Lfmcw雷达采用了“差拍-傅立叶”接收机结构,其回波中频信号经数字采集后进行fft处理,从而获得雷达的距离谱。
By using the processing method of sliding time window , the problem of the periodicity range ambiguity is solved . meanwhile , the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method . then , the pulse width parameter which is the most important in the parameters of fmicw is analyzed . the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing . at last this thesis introduces the different signal processing methods of fmpcw and fmicw
同时利用该方法解决了fmpcw信号的由于目标距离超过雷达的最大单值测距范围而引起的距离模糊问题。然后对fmicw波形参数中最为重要的脉冲宽度进行了分析,给出了更为严格的约束条件,保证了信号处理后距离谱峰值的唯一性。最后,分别介绍了fmpcw和fmicw信号的不同处理方式,并对两者不同的时域滤波性能进行了比较,并对二者的差异进行了分析。