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首页> 外文会议>2016 World Conference on Futuristic Trends in Research and Innovation for Social Welfare >FIR filter compensator for CIC filter suitable for software defined radio
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FIR filter compensator for CIC filter suitable for software defined radio

机译：适用于软件无线电的CIC滤波器的FIR滤波器补偿器

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Software Defined Radio (SDR) supports different wireless standards in a single radio device. This can be done by digital signal processing. In digitized form different wireless standards requires different sample rates for baseband processing. Sample rate conversion (SRC) is required for this purpose. In SRC, Comb-Integrator-Comb (CIC) filter plays an important role. Multistage CIC filter provides better stopband characteristics but passband response deteriorates. A FIR filter cascaded in series with CIC filter provides desired transition band. This paper discusses about basic characteristics and structure of FIR filter. Then it discusses the implementation of FIR filter as decimator and interpolator, poly-phase implementation of FIR filter and shows the simulated response of CIC filter when cascaded with FIR filter. Lastly, it also tries to implement CIC filter efficiently in polyphase representation.
机译：软件无线电（SDR）在单个无线电设备中支持不同的无线标准。这可以通过数字信号处理来完成。以数字化形式，不同的无线标准需要不同的采样率进行基带处理。为此，需要采样率转换（SRC）。在SRC中，梳状积分器（CIC）滤波器起着重要作用。多级CIC滤波器可提供更好的阻带特性，但通带响应会变差。与CIC滤波器级联的FIR滤波器可提供所需的过渡带。本文讨论了FIR滤波器的基本特性和结构。然后讨论了FIR滤波器作为抽取器和内插器的实现，FIR滤波器的多相实现，并显示了与FIR滤波器级联时CIC滤波器的仿真响应。最后，它还尝试在多相表示中有效地实现CIC滤波器。

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