距离与速度 meaning in Chinese
distance and speed
Examples
- Lfmcw ( linear frequency modulation continuous wave ) radar is a radar system which can get the information of range and velocity through modulating the frequency of continuous wave
线性调频连续波( lfmcw )雷达是一种通过对连续波进行频率调制来获得距离与速度信息的雷达体制。 - Because of the advantages of no range blind area , high range resolution , low signal power and simple structure , lfmcw ( linear frequency modulation continuous wave ) radar attracted more and more attention recently
线性调频连续波( lfmcw )雷达是一种通过对连续波进行频率调制来获得距离与速度信息的雷达体制系统。由于其具有无距离盲区、高距离分辨率、低发射功率、结构简单,便于集成化等优点,适合用于液位测量系统。 - Based on the analysis of the beat frequency signal , the expression of the beat frequency phase is deduced . the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods . by using two - dimensional fft , the range and velocity information of target is got out from the echo . according to the periodicity range ambiguity of symmetrical pulses in fmpcw , the processing method of sliding time window is used
通过对差频信号进行的分析,得出了差频相位的具体表达式,表现出了要检测的各量的物理意义,对检测的方法提供了理论依据。利用二维fft方法,可以有效地提取回波中目标的距离与速度信息。对于fmpcw信号由于均匀脉冲产生的周期性距离模糊的问题,采取时间波门的处理方法。