Performance Improvement in Target Detection Using Various Techniques in Complex Matched Filter in Radar Communication

The term radar was coined in 1940 by the United States Navy and is derived from three terms, radio detection and ranging. Radar transmits electromagnetic (EM) waves of radio frequency (RF). Radar is also helpful in classifying targets as known or unknown; a known target may be monitored to check the progress of the respective target. An unknown target may be a theft unit; it may or may not be with the intentions of causing harm. Radar also faces interferences while its operation, namely clutter or some intentional/unintentional jammers (Han C et al, Multimed Tools Appl 1–16, 2018 [Han C, Guangyu G, Yu Z (2018) Real-time small traffic sign detection with revised faster-RCNN. Multimed Tools Appl 1–16]). Moreover, radar also faces obstruction by its own thermal noise. Nowadays, radar is advanced enough to implement the two-dimensional and three-dimensional mapping. Radar is also widely used for collision avoidance and earth resource monitoring (Hu et al, IEEE Sens J 18:3152–3162, 2018 [Hu et al. in IEEE Sensors J 18:3152–3162, 2018]).