平坦衰落信道下一种基于进化粒子滤波的盲检测器
doi: 10.3724/SP.J.1146.2006.01930
A Blind Evolutionary Particle Filtering Detector in Flat Fading Channels
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摘要: 该文针对平坦瑞利衰落信道下的盲粒子滤波检测器存在的样本贫化问题,提出了一种基于进化粒子滤波的盲检测方法。在粒子滤波的重采样阶段,引入进化规化思想,即采用进化粒子滤波的方法解决样本的贫化现象,从而构成了一种基于进化粒子滤波的盲检测器。仿真结果表明,在信道模型系数未知条件下,该检测器的误码率性能较盲粒子滤波检测器优越,接近已知信道模型系数情况下的混合卡尔曼滤波检测器性能。
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关键词:
- 进化粒子滤波; AR模型; 平坦衰落信道
Abstract: To overcome the drawbacks of samples impoverishment, an evolutionary particle filtering algorithm is proposed for blind signal detection over flat Rayleigh fading channels whose model coefficients are unknown. During the resampling of particle filtering, evolutionary programming is used. The evolutionary particle filtering algorithm is adopted to overcome the drawbacks of samples, which forms into a blind detection based in evolutionary particle filtering. It is shown through simulations that the proposed particle filtering detector maintains comparable performance with mixture Kalman filter with known model coefficients. -
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