Quad Code Sequence Generation Using Cyclic Redundancy Technique to Enhance Target Detection in Doppler Rader

Today’s world is contemplating to set the new developments in radar to face the security challenges in defense. In the scope of radar signal processing, technical expertise in the signal processing, coding theory and techniques brought a lot of exposers to improve the detection probability in terms of range and position. The present art of work focusing on the detection of multiple moving targets using Doppler radar. Though the existing approaches try to increase the Merit Factor and range resolution of the acquired Signal, As such methods fail to find out the target when they are in multiple and moving, due to which the amplitude of the side spikes (Noise) is much more with respect to the highest detectable limit. Those side spikes dominate the probability of detection of a target because the weak echoes from the small targets may be masked by these side spikes of huge moving targets. This recommended approach provides clear information about the targets with respect to Doppler by creating multiple clear windows at various Doppler's with respect to the range. The amplitude of all windows is below 85–90 dB down, so all moving targets can be easily detected. This approach is validating by the use of Mat lab.