| 数字匹配滤波捕获方法研究与FPGA实现 |
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| 引用本文： | 李怀金,王大鸣.数字匹配滤波捕获方法研究与FPGA实现[J].通信技术,2009,42(4):16-18. |
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| 作者姓名： | 李怀金 王大鸣 |
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| 作者单位： | 解放军信息工程大学,信息工程学院,河南,郑州,450002 |
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| 摘 要： | 频偏与判决门限对数字匹配滤波器的捕获性能影响巨大，因此研究实现抗频偏算法及自适应门限调整裳略对捕获有非常重要的意义。丈章设计实现了适合FPGA实现的基于数字匹配滤波器的时频二维搜索算法和自适应门限调整策略并且在FPGA上实现。
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| 关 键 词： | 数字匹配滤波器 捕获 频偏 自适应门限 |
Acquisition Method with Digital Matched Filter and FPGA Implementation |
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| LI Huai-jin,WANG Da-ming.Acquisition Method with Digital Matched Filter and FPGA Implementation[J].Communications Technology,2009,42(4):16-18. |
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| Authors: | LI Huai-jin WANG Da-ming |
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| Affiliation: | (Institute of Information Engineering, PLA Information Engineering University, Zhengzhou Henan 450002, China) |
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| Abstract: | Frequency offset and decision threshold greatly influence acquisition performance of the digital matched filter （DMF）, so it is of great significance to research the anti-frequency offset algorithm and the strategy of adaptive threshold search. This paper describes the design of a time-frequency two dimension search algorithm based on DMF and an adaptive threshold strategy suitable for FPGA implementation. This design has been implemented with FPGA. |
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| Keywords: | digital matched filter acquisition frequency offset adaptive threshold |
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