Design and Implementation of a Intermediate Frequency Multimode Digital Receiver

We accomplish a digital intermediate frequency receiver based on the theory of multi-mode digital receiver and intermediate frequency sampling. In order to complete this receiver system, we chiefly utilize digital down converter and digital signal processor. And we give a particular illumination about application of each module in this receiver system. In the end, the joint test for capability of receiver is performed. The result of the joint test indicates that the receiver can receive multi-mode modulation signal by loading corresponding software.