一種新的帶序貫濾波的PN碼跟蹤環(huán)性能分析
Performance Analysis of a New PN Code Tracking Loop with Sequential Filters
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摘要: 該文提出了一種新的帶序貫濾波的全數(shù)字PN碼跟蹤環(huán)，并通過建立環(huán)路跟蹤過程的等效數(shù)學(xué)模型，分析了瑞利信道下環(huán)路的非線性跟蹤性能，并對(duì)理論數(shù)值結(jié)果和仿真結(jié)果進(jìn)行了比較分析。結(jié)果表明，該跟蹤環(huán)在衰落信道下能獲得滿意的跟蹤性能。
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關(guān)鍵詞:
- 直接序列擴(kuò)頻;瑞利信道;PN碼跟蹤環(huán);序貫濾波
Abstract: A new digital PN code tracking loop with a sequential filter is proposed, and an equivalent model of the loops dynamic process is provided to derive the loops nonlinear performance. The performance is also analyzed by computer simulation under Rayleigh fading channel. The results show that this loop has satisfactory performance under fading environments. -
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