The Design And Implementation Of MIMO Radar Demonstration System Based On ADSP-TS101

MIMO(Multiple Input Multiple Output) technology has been widely used in the field of Wireless Mobile Communications in recent years. Based on similarity between communication and radar, a number of scholars have been researching the applications of MIMO technology in radar system, and obtained some remarkable results.When orthogonal signals are transmitted in transmitter, spatial transmitted power density is uniform in space, which will result in low probability of intercept (LPI). We can utilize the non-correlation of received signals to detect target in time domain as well as in spatial domain. When correlation signals are transmitted, transmitted energy can be effectively used, and also can reject interferences and jammers. What's more, when MIMO radar transmits wide beam and receives using multi-beamforming technology, it is unnecessary to scan the beam. Then pulse number can be accumulated, resulting in narrower doppler resolution. At meanwhile, this will lead extra advantages, such as better clutter rejection and higher detection probability of low-speed targets.The concrete contents are as follows:This paper begins with introduction of MIMO radar principles, followed by convex optimization method to simulate orthogonal and correlation signals, based on these, echo signal model is presented. An analysis of joint transmit-receive beam pattern of MIMO radar and LPI performance as well as low-speed target detection performance are given. Then we introduced some basic signal processing algorithms, including digital beamforming, pulse compression, MTI, MTD, CFAR and monopulse angle measurement. Finally, MIMO radar demonstration system including target simulator, signal processor and PPI monitor based on ADSP-TS101 are implemented.