In order to decrease the mirror frequency interference, cross interference and inter-modulation interference, double IF (Intermediate frequency) is adopted in the receiver.

为了降低镜频干扰、交调和互调干扰，接收机采用了双中频方案。

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And the application in intermediate frequency digital receiver proves this software system's efficiency and dependability.

在中频数字接收系统中的应用验证了此软件系统的效率和可靠性。

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This paper introduces the theory and design method of digital intermediate frequency receiver, and based on high speed DSP and FPGA establish hardware process platform.

介绍了一种数字中频接收机的原理与设计方法，并以高性能DSP、高速fpga为基础，搭建硬件处理平台。

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