Question

CW radar can be used as a speed monitor device. Discuss

Answer 1

Answer:

Police often use CW radar to measure the speed of cars.

CW radar systems are used in military applications where the measuring the range rate is desired.

CW systems measure the instantaneous range rate, and maintain continuous contact with the target.

As opposed to pulsed radar systems, continuous wave (CW) radar systems emit electromagnetic radiation at all times. Conventional CW radar cannot measure range because there is no basis for the measurement of the time delay. Recall that the basic radar system created pulses and used the time interval between transmission and reception to determine the target's range. If the energy is transmitted continuously then this will not be possible.