A DSP Implementation of 2FSK Demodulation Algorithm
Ding Liu · Modern Electronic Technique · 2004
The paper introduces a 2FSK noncoherent demodulation algorithm in detail.The algorithm touches upon a phase delay,and the time delays corresponding to a phase delay can′t be exact multiples of the sampling period in implement action using DSP,so we use a FIR filter with a single zero to solve this problem.The paper′s emphasis is placed on educing formula of FIR filter confficient,and the algorithm flowchart which is implemented by DSP software is also presented.