Doppler Velocimetry System Design and FPGA Realization

In order to improve the accuracy of Measuring Velocity from Doppler Radar, the method of extraction proposed is based on the cycle frequency spectrum of the center of gravity for the frequency spectrum. The collected doppler radar signal is used to make simulations for Period gram Method and the frequency spectrum of gravity method. The core of FFT in IPCore of FPGA is used to implement algorithm to complete the design combined with signal conditioning circuitry and A/D data acquisition. Experimental results show that the center of gravity of the frequency spectrum of the frequency extraction methods improve the accuracy for measuring velocity.