Design of beam steering system in phased array based on DSP

Phased array radar attracts more and more attention and has application in many fields because of its prominent capability. The performance of phased array radar is badly restricted by the beam steering system. This paper proposed a beam steering system based on DSP, aim at high speed and high precision in calculation, using the subarray modularization and the distributed-centralized operation obtain the balance of speed and precision in calculation. Simulation testify the respond time of this beam steering system less than 100 ¿s, error of the beam steering code is much less than phase quantization error, accord the request of design in speed and precision.