A frequency-hopped Ungerboeck-encoded 4-ary DPSK modem

The authors discuss the design of a frequency-hopped Ungerboeck-encoded 4-ary DPSK HF modem. First, they present a general channel model. Next, they present channel simulation results for rate-2/3 encoding of 8-ary and 4-ary differentially coherent DPSK. Both additive Gaussian white noise and Raylei...

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Bibliographic Details
Published inMILCOM 88, 21st Century Military Communications - What's Possible?'. Conference record. Military Communications Conference pp. 133 - 141 vol.1
Main Authors Pizzi, S.V., Leary, P.J., deLellis, J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1988
Subjects
Convolution
Convolutional codes
Data communication
Differential quadrature phase shift keying
Euclidean distance
Fading
Frequency
Modems
Modulation coding
Phase shift keying
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Summary:The authors discuss the design of a frequency-hopped Ungerboeck-encoded 4-ary DPSK HF modem. First, they present a general channel model. Next, they present channel simulation results for rate-2/3 encoding of 8-ary and 4-ary differentially coherent DPSK. Both additive Gaussian white noise and Rayleigh fading channels are examined. The basic structure of the frequency-hopped waveform is elucidated, and it is shown how the Ungerboeck encoding is combined with the waveform to produce the frequency-hopped encoded modulation.< >
DOI:10.1109/MILCOM.1988.13381