| 一种基于自适应频率估计的跳频捕获新方法 |
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| 引用本文： | 闫冰,罗建,丁宗杰. 一种基于自适应频率估计的跳频捕获新方法[J]. 电声技术, 2009, 33(12): 73-76 |
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| 作者姓名： | 闫冰 罗建 丁宗杰 |
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| 作者单位： | 西北工业大学,航海学院,西安,710072;西北工业大学,航海学院,西安,710072;西北工业大学,航海学院,西安,710072 |
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| 摘 要： | 针对水声跳频通信，给出了1种基于频率估计的跳频同步捕获的捕获原理和捕获过程，捕获中采用1种简化的变专长自适应格型IIR陷波器算法估测跳频信号频率。仿真结果说明该算法在低信噪比下具有估计精度高和实时性好的特点，满足水声跳频系统捕获的要求，验证了该跳频捕获方法的优越性。
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| 关 键 词： | 跳频 同步捕获 频率估计 IIR陷波 自适应算法 |
A New Approach on Frequency-hopping Synchronization Acquisition Using Adaptive Frequency Estimation |
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| YAN Bing,LUO Jian,DING Zong-jie. A New Approach on Frequency-hopping Synchronization Acquisition Using Adaptive Frequency Estimation[J]. Audio Engineering, 2009, 33(12): 73-76 |
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| Authors: | YAN Bing LUO Jian DING Zong-jie |
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| Affiliation: | (College of Marine, Northwestern Polytechnical University, Xi＇an 710072, China) |
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| Abstract: | An FH acquisition based on the frequency estimation is introduced for underwater acoustic communication. The analysis in theory of this technique is made and the flow of acquisition is presented. The frequency estimation is implemented by the variable step-size algorithm of second-order IIR notch filter. Simulation results show the algorithm has good results in case of estimation frequency and also the acquisition method and its design consideration can meet the aim of fast acquisition. It is applicable for... |
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| Keywords: | frequency-hopping synchronization acquisition frequency estimation IIR notch filter adaptive algorithm |
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