On binary DPSK detection
Abstract
A discussion of optimumdetector structure indicates that optimum detection of binary DPSK requires a frequency reference but gives a bit error probability (Pe) in the absence of ISI, expressed by (1/2)exp(Eb/eta), where Eb is the bit energy and eta/2 is the amplitude of the power spectrum of the additive Gaussian noise. If a narrowband IF filter is used, the bandwidth should be chosen as a carrier frequency equaling 0.57/T (T = bit time) for the best performance, in which case ISI is nearly eliminated, and 1 dB degradation with respect to the optimum detector in Pe performance results. For other IF bandwidths, Pe becomes worse or more ISI results, or both. For a wideband IF and integrateanddumpdetector there is essentially no ISI but there is 2dB degradation with respect to the optimum detector in performance at a high SNR.
 Publication:

IEEE Transactions on Communications
 Pub Date:
 April 1978
 Bibcode:
 1978ITCom..26..484P
 Keywords:

 Binary Data;
 Data Transmission;
 Error Analysis;
 Phase Shift Keying;
 Signal Detection;
 Transmission Efficiency;
 Bandwidth;
 Carrier Frequencies;
 Data Sampling;
 Optimization;
 Performance Prediction;
 Power Spectra;
 Probability Theory;
 Signal To Noise Ratios;
 Communications and Radar