| 摘要 |
An embodiment of the present invention relates to a wideband non-coherent BPSK demodulator for ultra low power using first order sideband filters with 180-degree phase alignment. In a configuration of the BPSK demodulator, provided is the wideband non-coherent BPSK demodulator for ultra low power, comprising a sideband separation unit which separates a modulated signal with a low sideband and a high sideband using a first order low pass filter and a first order high pass filter of which a cutoff frequency is a carrier frequency; a low sideband signal delay and phase detection unit which generates a stable symbol edge signal emphasizing a change in phase by aligning a difference in phase by 180 degrees between a delayed low sideband signal, by delaying the low sideband signal by π/2 of the carrier frequency and the high sideband signal; a data demodulator which demodulates the symbol edge signal emphasizing the change in phase with digital data via a hysteresis circuit; and a data clock restoration unit which generates a data clock using a digitalized signal the delayed low sideband signal via a comparator and data signal. |
