LOW POWER NON-COHERENT HIGH SPEED BINARY PHASE SHIFT KEYING(BPSK) DEMODULATION METHOD AND CIRCUIT USING SEPARATION USB AND LSB WITH SHIFT

摘要

An embodiment of the present invention relates to an asynchronous high-speed BPSK demodulation method and a configuration of the circuit. A BPSK demodulation circuit configuration includes: a digital conversion unit for separating a modulated differential signal into an upper side band and a lower side band and converting the upper side band and lower side band into digital signal, respectively; a signal delay unit for delaying the digital signal of the lower side band; a first clock unit for generating a symbol edge signal which is used as a detection clock for detecting data using a pulse signal generated due to the phase variation of the digital signal of the upper side band and lower side band; a carrier recovery unit for recovering a carrier frequency component using a first synchronized signal firstly synchronized by inputting the delayed lower side band digital signal as data and inputting the symbol edge signal as a clock, and the delayed lower side band digital signal; a second clock unit for generating a data clock to synchronize data using the carrier frequency component and symbol edge signal; and a data demodulation unit for demodulating the digital data by synchronizing the first synchronous signal with the data clock.