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基于抽取滤波器多相分解的多速率采样模块设计

Keywords: 扩频系统,多相滤波器,任意比重采样

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Abstract:

针对扩频系统中多速率采样的实现问题,提出了一种改进的多相滤波器结构.通过简单的多相内插之后,进行分数倍抽取,可完成任意比重采样变换.介绍了基于多相滤波器结构的重采样原理,给出了适宜硬件实现的架构.仿真结果表明,该方法在极大降低系统运算量和开销的前提下,并不影响系统的性能.

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