Research and FPGA Implementation of MUSIC DOA of Smart Antenna Array

In this paper two section array and the arithmetic of DOA are studied on the eight elements array antennas and DOA arithmetic is designed on the FPGA. The directional characteristic of the line array and the elliptic array antenna is compared, proving that the line array and the circuit array can be consolidated in the elliptic array and deducting the uniform expression for array performance, forth more, we discussed the influence of the number of the array element on the direction of the array antenna. The paper studies the important arithmetic of DOA especially MUSIC, and compare the performance of different through all-purpose program on matlab. Finally the scheme of MUSIC of DOA estimation is implemented based on FPGA.