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首页> 外文期刊>IEEE signal processing letters >Modified CIC filter for sample rate conversion in software radio systems
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Modified CIC filter for sample rate conversion in software radio systems

机译:改进的CIC滤波器,用于软件无线电系统中的采样率转换

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摘要

Cascaded-integrator-comb (CIC) filters perform sample rate conversion (SRC) efficiently using only additions/subtractions. However, the limited number of tuning parameters may make conventional CIC filters unsuitable for SRC in software radio (SWR) systems. A simple modification to the CIC filter that enhances its SRC performance at the expense of requiring a few extra computations per output sample is proposed. Simulation results show that the modified CIC filter outperforms the conventional CIC filter for the purpose of SRC in SWR systems.
机译:级联积分梳状(CIC)滤波器仅使用加/减运算即可有效地执行采样率转换(SRC)。但是,有限数量的调整参数可能会使常规CIC滤波器不适合软件无线电(SWR)系统中的SRC。提出了一种对CIC滤波器的简单修改,以提高其SRC性能,但代价是每个输出样本需要少量额外的计算。仿真结果表明,针对SWR系统中的SRC,改进后的CIC滤波器优于常规CIC滤波器。

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