We know in case of a stationary object, the frequency of the signal/sound produced by the radar is equivalent to the frequency of the signal/sound received by the radar after interaction with the target in space. Let us first understand in detail about the variation in the frequency with respect to the movement of the target.

It is to be noteworthy that here we are discussing the Doppler effect of radar system but it is applicable for all wave motion. So, the Doppler frequency shift i.e., the difference of originally transmitted frequency to the received frequency shows the speed of the object. While in case the target moves away from the radar then increase in wavelength is noticed and so there exist a decrease in frequency.Д«asically, for a moving target, the speed of movement is also needed to be determined by the radar system.Thereby increasing the frequency of the signal. When the target approaches or moves closer to the radar then the wavelength decreases.So, the basic point that is needed to figure out here is how the variation in frequency is interpreted in case of an object in motion?Д«asically, there exist two cases that show the change in frequency according to the Doppler effect. Here in this article, we will discuss the variation in the frequency with respect to the movement of the target. And this frequency shift is an outcome of the movement of the target. When the signal gets interacted with the object then an echo is produced which is received by the receiving antenna of the radar system.ДЄnd in case of moving object, the frequency of the signal received is different from the one that is actually transmitted.

We have already discussed in our previous article of the radar system, that radar is used to determine the position of an object in space by transmitting electromagnetic signal.

Us doppler radar