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Phase-shift keying demodulator which uses the period width window technique and demodulation method
Phase-shift keying demodulator which uses the period width window technique and demodulation method
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机译:使用周期宽度窗口技术和解调方法的相移键控解调器
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摘要
PROBLEM TO BE SOLVED: To provide a phase shift keying(PSK) modulator and a modulation method which use a period width window technique. ;SOLUTION: This demodulator 10 demodulates a PSK communication signal by using a synchronizer 12, a period window detector 20 and a logical device 22. The synchronizer 12 supplies a transition signal for indicating a reference edge of a communication synchronizer. A period window connected to the synchronizer 12 establishes a time period on the basis of a period of the transition signal. The logical device 22 which has input connected to output of the period window detector 20 generates a logical output signal. This demodulator 10 is equipped with a carrier wave boundary detector 34 for turning a message into a frame and minimizing detection of a noise, thus it becomes possible to measure a signal intensity oven a wide dynamic range.;COPYRIGHT: (C)2000,JPO
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