| 基于全相位的同频融合分层算法 |
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| 引用本文： | 仝建武,刘良兵,李子豪,杨国瑞.基于全相位的同频融合分层算法[J].后勤工程学院学报,2014(1):84-88. |
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| 作者姓名： | 仝建武 刘良兵 李子豪 杨国瑞 |
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| 作者单位： | [1]后勤工程学院训练部,重庆401311 [2]后勤工程学院后勤信息与军事物流工程系,重庆401311 [3]69061部队,新疆838000 [4]后勤工程学院学员旅,重庆401311 |
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| 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。
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| 关 键 词： | 同频融合 分层算法 相位差测量 全相位谱 实时性 |
The Identical-frequency Fusion and Hierarchy Algorithm Based on All-phase Method |
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| Tong Jian-wu,Liu Liang-bing,Li Zi-hao,Yang Guo-rui.The Identical-frequency Fusion and Hierarchy Algorithm Based on All-phase Method[J].Journal of Logistical Engineering University,2014(1):84-88. |
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| Authors: | Tong Jian-wu Liu Liang-bing Li Zi-hao Yang Guo-rui |
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| Institution: | 1. a. Dept. of Training, b. Dept. of Logistics Information ＆ Logistics Engineering, c. Brigade of Cadets, LEU, Chongqing 401311, China; 2. Unit 69061, Xinj iang 838000, China) |
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| Abstract: | 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. |
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| Keywords: | identical-frequency fusion hierarchy algorithm phase difference measure all-phase spectrum real-time |
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