Radar Signal Processing on FPGA

Abstract

There are many applications that require a short-range radar system to find the range and velocity of the targets. For example, in ADAS (Advanced driver-assistance systems), we continuously need to monitor the range and velocity of obstacles and other vehicles. Radars can extract information about targets or obstacles using EM waves. FMCW radars are widely used in such applications where we need short-range coverage. In our FYP we have implemented the signal processor for an FMCW radar on the Zynq SoC kit, to detect short-range targets and determine their velocity and range. For this, we used MATLAB to generate the simulated data of FMCW radar. We implemented the UART interface between MATLAB and Xilinx Zynq SoC to transfer simulated data to Xilinx Zynq SoC. Simulated data is first stored in DDR memory on the processing system (PS) side. Then it is transferred from the Processing system (PS) to programmable logic (PL) part of Zynq SoC, using AXI DMA, to apply signal processing algorithms like FFT and CFAR to extract the beat frequencies. This information is transferred to PS, and then to MATLAB on the UART interface. The final output containing range and velocity of targets is displayed on MATLAB