一种改进的通信测距复合系统抗窄带干扰性能的研究
Suppression of Narrowband Interference inthe Improved Multiplex System of SpreadSpectrum Communication and Range Measurement
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摘要: 该文介绍了一种改进的通信测距复合系统,即应用自适应组合滤波器和Gardner于1986年的基于循环谱分析法的SPECCORR_TDOA估计模型，来改进系统的抗窄带干扰和高斯白噪声的能力，并建立了系统仿真平台。同时提出了应用峰值比对复合系统的抗干扰能力进行评估。仿真结果证明，改进的复合系统具有强抗干扰能力。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频谱特性的复合序列扩频通信方式.哈尔滨工程大学学报,1998,19(4):24-30.[3]唐瑜.扩频通信中组台自适应抗干扰技术.电子科技大学学报,1998,27(2):123-128.[4]杨家兴,王晓春.一种强抗干扰能力的时延估计新算法.信息工程学院学报,1994,1(13):17-24.[5]冯小平.扩频通信信号的到达时间差估计算法.西安电子科技大学学报,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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