Extended binary phase shift keying (EBPSK) modem

An extended binary phase shift keying (EBPSK) modem omits a DAC (Digital-to-Analog Converter) at a modulation end by utilizing the simplified expression of an EBPSK modulated waveform, can convert the phase jump of pulse signals to a special filtering mechanism of amplitude impulses by utilizing a d...

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Bibliographische Detailangaben
Hauptverfasser:	YING PENGKUI, WU LENAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	An extended binary phase shift keying (EBPSK) modem omits a DAC (Digital-to-Analog Converter) at a modulation end by utilizing the simplified expression of an EBPSK modulated waveform, can convert the phase jump of pulse signals to a special filtering mechanism of amplitude impulses by utilizing a digital impulse filter, and adopts an analog comparator to replace a high-precision ADC (Analog to Digital Converter) at a demodulation end. Therefore, the hardware construction of the EBPSK modem can be simplified greatly, and particularly, the cost, the size and the power consumption of an EBPSK receiver can also be reduced obviously; in addition, the working frequency and the transmission bit rate for EBPSK can be improved effectively, and the EBPSK modem is especially suitable for a wireless sensor network with extremely high requirement on cost and power consumption.