无线定位技术中基于多相位的预滤波算法研究

A New Pre-filter Algorithm Based on Polyphase Filter in Wireless Location Systems

针对接收信号的前端预滤波处理的问题,文章提出了一种基于多相位滤波的预滤波算法,算法有效提高了接收信号噪声功率比,从而可以更精确地估算出定位计算中所需要的定位参数。理论分析表明,多相位滤波的前端预处理技术的采用可以明显提高无线定位精度。

To the problem of the front pre-fiher,a new pre-fiher algorithm based on Polyphase Filter（PF） is proposed in the paper.The new algorithms efficiently improve the received signal-to-noise ratios,Based on this,location estimate parameters can be more highly obtained.Theory analysis indicates that the front polyphase pre-filter technologies can highly improve the accuracy of wireless location.