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基于中國(guó)余數(shù)定理的跳頻信號(hào)相時(shí)延估計(jì)方法

趙培焱 歐陽鑫信 彭華峰

趙培焱, 歐陽鑫信, 彭華峰. 基于中國(guó)余數(shù)定理的跳頻信號(hào)相時(shí)延估計(jì)方法[J]. 電子與信息學(xué)報(bào), 2018, 40(3): 656-662. doi: 10.11999/JEIT170544
引用本文: 趙培焱, 歐陽鑫信, 彭華峰. 基于中國(guó)余數(shù)定理的跳頻信號(hào)相時(shí)延估計(jì)方法[J]. 電子與信息學(xué)報(bào), 2018, 40(3): 656-662. doi: 10.11999/JEIT170544
ZHAO Peiyan, OUYANG Xinxin, PENG Huafeng. A Phase Delay Estimation Algorithm of Frequency Hopping Signal Based on Chinese Reminder Theorem[J]. Journal of Electronics & Information Technology, 2018, 40(3): 656-662. doi: 10.11999/JEIT170544
Citation: ZHAO Peiyan, OUYANG Xinxin, PENG Huafeng. A Phase Delay Estimation Algorithm of Frequency Hopping Signal Based on Chinese Reminder Theorem[J]. Journal of Electronics & Information Technology, 2018, 40(3): 656-662. doi: 10.11999/JEIT170544

基于中國(guó)余數(shù)定理的跳頻信號(hào)相時(shí)延估計(jì)方法

doi: 10.11999/JEIT170544

A Phase Delay Estimation Algorithm of Frequency Hopping Signal Based on Chinese Reminder Theorem

  • 摘要: 跳頻信號(hào)每跳帶寬窄且多跳間積累困難,利用傳統(tǒng)方法對(duì)其時(shí)延估計(jì)精度都很低。針對(duì)該問題,該文充分挖掘跳頻信號(hào)寬跳帶的潛能,建立了多頻點(diǎn)相時(shí)延估計(jì)模型,把時(shí)延估計(jì)問題轉(zhuǎn)化為整周模糊求解問題;然后在解模糊過程中引入中國(guó)余數(shù)定理,針對(duì)非合作場(chǎng)景中模數(shù)無法選擇的問題,提出一種基于虛擬頻點(diǎn)的干涉相位外推方法,構(gòu)造出魯棒中國(guó)余數(shù)定理的適用條件;最后采用閉式魯棒中國(guó)余數(shù)定理解算整周模糊,得到高精度的相時(shí)延。該方法具有精度高、運(yùn)算量小、不依賴于信道衰落特性的優(yōu)點(diǎn)。仿真結(jié)果驗(yàn)證了所提模型及方法的有效性和正確性。
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出版歷程
  • 收稿日期:  2017-06-07
  • 修回日期:  2017-11-03
  • 刊出日期:  2018-03-19

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