Digital tracking of moving targets in pulse Doppler radar: A proposed design

A design approach for synthesizing pulse Doppler radar that performs both the surveillance and tracking tasks is proposed. Tracking in the range and tracking in the radial velocity are performed to meet the demands of several applications. During the surveillance operation the moving targets are displayed in the screen and the operator selects a target and orders for tracking in range and in velocity of the identified target. Thereafter, the range and velocity information about the target locked by the radar is provided continuously. Replica correlation detection is employed as to concede improved probability of detection in presence of noise. The receiver structure is simplified by employing array of flip flops serving as range cells and selected target cells and they are updated by the detected signals during beam sweeping. Velocity tracking of the selected target is performed by an automatically tuned digital band pass filter.