摘要
针对大阵列数字波束形成天线系统中计算量和数据传输的瓶颈问题,提出一种基于LMS算法的分块并行的算法。对算法的计算复杂度作了分析并给出计算机仿真结果。结果表明,该算法不仅适合分布式DSP硬件并行计算,计算实时性好,而且算法的自由度和最终形成的波束不受分块的影响。
To overcome the bottleneck of computation and data transmission in large array digital beamforming antenna systems,a partitioning parallel algorithm based on LMS algorithm is presented. The compute complexity of the algorithm is analysed. The computer simulation is implemented. The simulation results show that it is suitable for parallel running on DSP board and can improve the compute efficiency. On the other hand, the adaptive freedom degree and the beam performance are same as that of full array,and not affected by the subarray configuration.
出处
《现代电子技术》
2008年第23期26-28,33,共4页
Modern Electronics Technique
关键词
数字波束形成
LMS算法
子阵
分块并行
digital beam forming LMS algorithm subarray partitioning parallel
