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Anotace knihy

This thesis investigates a modification to Differential Phase Shift Keyed modulation to create a low Probability of Interception/Exploitation communications signal. A Pseudodorandum timing offset is applied to each symbol in the communications stream to intentionally create intersymbol interference that hinders accurate symbol estimation and bit sequence recovery by a non-cooperative receiver. Two cooperative receiver strategies are proposed to mitigate the ISI due to symbol timing offset: a modified minimum Mean Square Error equalization algorithum and a multiplexed bank of equalizer filters determined by an adaptive Least Mean Square algorithum. Numermical simulation is used to demonstrate the bit error rate performance of cooperative receiversand notional non-cooperative receivers. Simulation results suggest that proper selection of pulse of pulse shape and probability distribution of symbol timing offsets produces a waveform that is accurately demonstrated by the proposed cooperative receivers and significantly degrades non-cooperative receiver symbol estimation accuracy.

Parametry knihy

Zařazení knihy Knihy v angličtině Society & social sciences Education

• Plný název: Signal Processing Design of Low Probability of Intercept Waveforms Via Intersymbol Dither
• Autor: Nathaniel Christian Liefer
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 110
• EAN: 9781288307302
• ISBN: 9781288307302
• ID: 08242638
• Nakladatelství: Biblioscholar
• Hmotnost: 213 g
• Rozměry: 246 × 189 × 6 mm
• Datum vydání: 01. November 2012

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