基于FPGA的短波相关干涉仪测向

Direction Finding of Shortwave Correlative Interferometer Based on FPGA

相关干涉仪测向是测量信号到达方向的一种重要方法,因其实现简单且测向精度较高得到了广泛应用,但是运算量较大使得测向处理较慢。利用现场可编程门阵列(FPGA)的高速并行计算特点,对算法流程进行了改进,设计了一种资源占用少、处理速度快的实现方案,对算法的关键模块实现进行了分析,最后通过实际应用验证了该方法的正确性和可行性。

Direction finding of correlative interferometer is an important method to measure the arri- val direction of signal, which has been extensively used because of simple implementation and high direction finding precision, but the huge calculation quantity makes the processing speed slow. This paper improves the algorithm flow by using the characteristic of high-speed parallel calculation of field programmable gate array （FPGA）,designs a realization scheme with rapid processing speed, which occupies few resource, analyzes the key module implementation of the algorithm, finally validates the correctness and feasibility of the method through practical application.