Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
612-822-4611

  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Signal Processing Design of Low Probability of Intercept Waveforms via Intersymbol Dither

Signal Processing Design of Low Probability of Intercept Waveforms via Intersymbol Dither

Liefer, Nathaniel Christian

Paperback

Technology & EngineeringGeneral Education

ISBN10: 1288307306
ISBN13: 9781288307302
Publisher: Biblioscholar
Published: Nov 16 2012
Pages: 108
Weight: 0.36
Height: 0.22 Width: 6.14 Depth: 9.21
Language: English

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.

Also in

General Education

View All