Signal Synthesis and Mimo Radar Detectors Design: More Antennas Means Better Performance

The MIMO (multiple-input multiple-output) systems have gained popularity and attracted attention of late for their ability to enhance all areas of system performance. Inspired by the success of MIMO systems in communications, several publications have advocated the concept of new MIMO emerging active sensing radar technology from the system implementation point of view, as well as for signal processing techniques for target detection and parameter estimation. Reaping the full benefit of the superior performance enabled by the MIMO radar which exploits the special diversity of target scattering to improve detection performance over other types of array radars due to absence of target fades and analyse various topologies of multiple antenna systems in radars. In this paper, the present different digital arrays radar concepts are summarized, and performance is analyzed based on different modulation techniques to improve the resolution of the target parameters identifiability. This paper explores how transmit diversity can improve the direction finding performance of a radar utilizing an antenna array at the receiver and focuses on improving the performance of the signal detection.