随着电磁环境的日益恶化,以及低检测概率、低截获概率等通信技术的广泛应用,往往需要 在较大的带宽内同时对多个信号进行处理,才能够在大量信号中找到有用信号,因此对空间谱估计算法的时效性也提出了更高的要求。本文研究了空间谱快速算法及 实现问题,通过改进算法减少计算量,并合理利用硬件平台,将快速测向算法在FPGA+DSP平台上联合实现。本文的主要内容如下: 　　1、研究了基于直线阵的空间谱估计快速算法。针对MUSIC等测向算法大多需要特征分解和谱峰搜索,计算量较大的问题,给出了一种基于传播算子的Root-MUSIC算法,该算法避免了经典MUSIC算法中... 展开 随着电磁环境的日益恶化,以及低 检测概率、低截获概率等通信技术的广泛应用,往往需要在较大的带宽内同时对多个信号进行处理,才能够在大量信号中找到有用信号,因此对空间谱估计算法的时 效性也提出了更高的要求。本文研究了空间谱快速算法及实现问题,通过改进算法减少计算量,并合理利用硬件平台,将快速测向算法在FPGA+DSP平台上联 合实现。-1. A fast algorithm for spatial spectrum estimation based on linear array is studied. For music direction finding algorithm mostly feature decomposition and spectral peak searching, large amount of calculation, the paper give a root MUSIC algorithm based on propagator, the algorithm avoid the classical music algorithm... With the deterioration of the electromagnetic environment, and low detection probability and low probability of intercept and communication technology widely used, often required in larger bandwidth at the same time, a plurality of signal processing, to find the useful signal in a signal, so the spatial spectrum estimation algorithm of effectiveness also put forward higher requirements. Is studied in this paper spatial spectrum, fast algorithm and implementation issues, the improved algorithm reduces the amount of computation, and the rational use of hardware platform, fast direction finding algorithm in FPGA and DSP platform uplink is realized.