Application of DSTFT in Powerline Carrier Communication

To improve anti-disturbance and suitability of power line carrier communication,aimed at the power line carrier communication adopting frequency shift keying,a new method to demodulate 2FSK signal using discrete short time Fourier transform is put forward,Bit Synchronization Algorithmic Method is introduced based on the analysis of theory and mechanism of demodulation,the operating steps are designed and last instant demodulation is realized.The data of emulational experiment shows that power line carrier communication which requires little for the bit rate demodulates well and is a novel and useful method to demodulate 2FSK signal.