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Quasi-coherent differential demodulator for binary PSK

IP.com Disclosure Number: IPCOM000017313D
Original Publication Date: 2000-Jul-01
Included in the Prior Art Database: 2003-Jul-25

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Holger Gryska [+details]


Differential phase shift keying (DPSK) uses only the phase difference of two successive symbols to transfer information. Therefore a small frequency offset between receiver and transmitter can be ignored and the receiver need to know the absolute phase. These characteristics make the DPSK modulation technique attractive for low cost transmission systems. In the following binary DPSK with the symbol alphabet , )( kx (1) { }