Epoch synchronization of random FH signals in broadband noise

Author

Chung, Char-Dir ; Polydoros, Andreas

Author_Institution

LinCom Corp., Los Angeles, CA, USA

fYear

1990

fDate

30 Sep-3 Oct 1990

Firstpage

801

Abstract

A scheme for epoch synchronization of random frequency-hopped signals in broadband noise is presented. This scheme operates on the power samples of the real-time autocorrelation function of the received waveform. The scheme takes advantage of the fact that power sampling in the correlation domain suppresses frequency and phase dependence, but preserves timing information, in order to construct a maximum-likelihood epoch estimation algorithm for which the hopping pattern need not be known. The conditional mean and variance of this estimator are derived analytically and a simple parameter is found to be adequate for measuring the estimation performance. Simulation results that confirm the analytical results are reported

Keywords

correlation theory; frequency agility; noise; synchronisation; broadband noise; epoch synchronization; estimation performance; maximum-likelihood epoch estimation algorithm; mean; power samples; power sampling; random FH signals; random frequency-hopped signals; real-time autocorrelation function; received waveform; simulation; timing information; variance; Analysis of variance; Analytical models; Autocorrelation; Frequency estimation; Frequency synchronization; Maximum likelihood estimation; Performance analysis; Phase estimation; Sampling methods; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE

Conference_Location

Monterey, CA

Type

conf

DOI

10.1109/MILCOM.1990.117526

Filename

117526