【摘要】 为解决无线通信抗干扰性能,笔者讨论了不同于依赖伪随机码的基于模糊集合的无线通信跳频扩谱方法.介绍了可加性模糊系统通过数据来学习规则并起到伪随机数发生器(PN)的作用,由均匀分布随机数发生器提供训练样本,自适应模式可学习当前样本与以前样本之间的联系并将其以模糊规则形式编码.讨论了模糊系统的输入模糊集、模糊规则及自适应规则产生的方法,基于模糊集合的无线通信控制器设计.仿真结果表明模糊系统具有较低的χ2值,因此可提供均匀的或"随机"的无线通信传输频带.更多还原

【Abstract】 In order to improve the resisting disturbance in wireless communication,a spread spectrum method of frequency hopping based on fuzzy logic is discussed,and this method does not depend on the pseudo-random code.The additionable fuzzy system can learn rules by data and substitute the pseudo-random number generators(PN).When the equably distributing PN provide the training swatch,the adaptive mode may learn the current swatch and the former,and encode with fuzzy rules.The input fuzzy set,fuzzy rule and adaptive rule are discussed,and the wireless communication controller based on fuzzy set is designed.The simulation results indicate that the fuzzy system has lower χ~2,so the even or random wireless frequency can be provided.更多还原