直扩通信中含载波的非线性干扰抑制技术 |
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作者姓名: | 刘勇 谢军 邱乐德 |
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作者单位: | 西安空间无线电技术研究所 西安710000
(刘勇,谢军),西安空间无线电技术研究所 西安710000(邱乐德) |
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摘 要: | 将 ACM滤波器应用于扩频信号中的窄带干扰 ,能使抗干扰性能得到了很大改进。但这是仅对基带信号而言的 ,没有考虑信号载波或认为载波已经完全去除。而通常在强干扰的情况下 ,载波提取非常困难和不现实。因此 ,不考虑载波是无法将非线性技术应用于实际中的。文中针对这一问题进行了深入研究 ,给出了扩频信号的载波在没有被完全去除的情况下的非线性处理方法 ,从而解决了非线性干扰抑制技术的现实应用问题
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关 键 词: | 直扩通信 信号载波 非线性技术 非线性处理 |
Nonlinear Interference Suppression Technology in Spread-spectrum Com munication |
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Authors: | Liu Yong Xie Jun Qiu Lede |
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Institution: | Liu Yong Xie Jun Qiu Lede |
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Abstract: | First Rush and Poor proposed using a nonlinear appox imate condition mean(ACM) filter to the narrow-band interference in a spread-s pectrum signal so as to improve the perference of communication.However it is ve ry difficult and impractical to pick up the carrier in serious interference.In this paper a study of this question has been made.A improved nonlinear method i s discussed,thus the nonlinear technology,which is proposed by Rush and Poor,can be used in practice. |
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Keywords: | Direct-sequence(DS)spread spectrum Carrie r Nonlinear technology Nonlinear mathod |
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