基于全相位的同频融合分层算法  

The Identical-frequency Fusion and Hierarchy Algorithm Based on All-phase Method

作　　者：仝建武[1] 刘良兵[2] 李子豪 杨国瑞[4] 

机构地区：[1]后勤工程学院训练部 [2]后勤工程学院后勤信息与军事物流工程系 [3]69061部队 [4]后勤工程学院学员旅

出　　处：《后勤工程学院学报》2014年第1期84-88,共5页Journal of Logistical Engineering University

摘　　要：同频融合算法在处理频率快速变化的信号等应用中具有精度高、抗噪性好的优点,然而该算法实时性较差且精度受相位差测量影响较大。提出了基于全相位的同频融合分层算法,通过设计分层算法以减少多重循环中的冗余计算单元,可在不牺牲精度的前提下成倍降低运算量;采用全相位谱分析法降低相位差测量误差,明显改善了相位差补偿效果。理论分析与对比实验表明,该算法对同频融合过程有显著的改进效果。For the signal with fast changing frequency, the identical-frequency fusion algorithm is of high precision and strong noise immunity, but its real-time performance is poor and its precision is largely affected by the error of initial phase measurement. So the identical-frequency fusion and hierarchy algorithm based on all-phase is proposed, in which the all-phase spectrum analysis algorithm is adopted to decrease the initial phase error, and the hierarchy algorithm is designed to reduce the large amount of real- time computation in the multi-loop, which is reduced several times without decrease in precision. As shown in theoretical analysis and comparison experiments, the algorithm can improve the identical-frequency fusion process obviously.

关 键 词：同频融合 分层算法 相位差测量 全相位谱 实时性 

分 类 号：TP14[自动化与计算机技术—控制理论与控制工程]