Design And Implementation Of Vehicle Anti-collision Radar Based On AWR1642

Vehicle anti-collision radar has always been an important part of the Advanced Driver Assistance System(ADAS)for detecting the four corners of the vehicle(corner radar),front(forward radar)and rear(backward radar).By detecting dangerous targets around the car,the driver is provided with relevant warnings to assist the driver to drive and improve the safety of the driving,thereby effectively reducing the probability of traffic accidents.Compared with infrared,laser and ultrasonic radars,millimeter-wave radars are less affected by weather changes and have good anti-interference performance and range detection capabilities.In thesis,an experimental system of 77 G vehicle anti-collision radar based on LFMCW is implemented on the AWR1642 platform.The simulation results of LFMCW radar system and the processing results of AWR1642 field test are given in the paper.The main algorithms of baseband signal processing are mainly realized,including: ranging algorithm,speed measurement algorithm,moving target display(MTI)algorithm,moving target detection(MTD)algorithm,constant false alarm processing algorithm,angle measuring algorithm,etc.Thesis mainly carries out the following work for the purpose of realizing the whole system:1.Introduced 77 G millimeter wave,discussed the research significance of vehicle anti-collision millimeter wave radar,and elaborated the research status of MIMO radar and vehicle anti-collision radar at home and abroad;2.The basic principle of measuring distance,speed and angle of LFMCW radar system is introduced.The overall structure of the 77 G TD-MIMO LFMCW vehicle anticollision millimeter wave radar system is given.The components of the system and the functions of each part are introduced.The performance requirements of the system are put forward.At the same time,the system is simulated on MATLAB.3.Learn more about the AWR1642 hardware platform,which mainly includes RF front end,ARM processor and DSP processor.The RF front-end mainly includes the hardware circuit of the transceiver front-end,the ARM processor is mainly used for control,and the DSP processor is mainly used for algorithm implementation.4.On the AWR1642 platform,the target's ranging,speed measurement and angle measurement are realized,and the external field test is completed.Through the processing and analysis of the data collected by the radar,the measurement of the target distance,speed and angle can be completed.The measurement results show that the system performance meets the design requirements.5.Finally,thesis is summarized,and the shortcomings of thesis are pointed out and the future prospects are given.