一種改進的通信測距復合系統(tǒng)抗窄帶干擾性能的研究
Suppression of Narrowband Interference inthe Improved Multiplex System of SpreadSpectrum Communication and Range Measurement
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摘要: 該文介紹了一種改進的通信測距復合系統(tǒng),即應用自適應組合濾波器和Gardner于1986年的基于循環(huán)譜分析法的SPECCORR_TDOA估計模型，來改進系統(tǒng)的抗窄帶干擾和高斯白噪聲的能力，并建立了系統(tǒng)仿真平臺。同時提出了應用峰值比對復合系統(tǒng)的抗干擾能力進行評估。仿真結(jié)果證明，改進的復合系統(tǒng)具有強抗干擾能力。Abstract: A novel model of the multiplex system is proposed, which can suppress narrowband interference and white Gaussian noise by using adaptive combination filter and estimation model of SPECCORR_TDOA based on analyses of cyclostationary signals. Finally, the multiplex system models are simulated with computer. The result proves that the improved multiplex system has strong suppression ability of interference and noise.
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Gardner W A. Spectral correlation of modulated signals: Part Ⅰ-analog modulation. IEEE Trans. on Commun., 1987, COM-35(6): 584-594.[2]郭黎利.具有DS/FH頻譜特性的復合序列擴頻通信方式.哈爾濱工程大學學報,1998,19(4):24-30.[3]唐瑜.擴頻通信中組臺自適應抗干擾技術.電子科技大學學報,1998,27(2):123-128.[4]楊家興,王曉春.一種強抗干擾能力的時延估計新算法.信息工程學院學報,1994,1(13):17-24.[5]馮小平.擴頻通信信號的到達時間差估計算法.西安電子科技大學學報,2000,27(1):17-27.[6]Gardner W A. The spectral correlation thoery of cyclostationary time-series[J].Signal Processing.1986, 11(7):13-36 -
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