5aSP11. Optimal frequency for receiving an amplitude-modulated stochastic acoustic process in a medium with absorption.

Session: Friday Morning, December 6

Time: 11:45


Author: Leonid M. Gelman
Location: Sci. Union ``Slavutich,'' 3a, Surikova str., Kiev 252035, Ukraine
Author: Yuri V. Burau
Location: Sci. Union ``Slavutich,'' 3a, Surikova str., Kiev 252035, Ukraine
Author: Vladimir I. Krytsyn
Location: Sci. Union ``Slavutich,'' 3a, Surikova str., Kiev 252035, Ukraine

Abstract:

The reception of amplitude-modulated narrow-band signals of a noisy carrier is considered for propagation in a medium with absorption which depends on the frequency of a background of noisy interference. The purpose of the work is to optimize analytically the frequency for receiving the amplitude-modulated stochastic acoustic process. The efficiency of reception depends very much on this frequency. An optimization problem was formulated and solved. The power criterion, namely, the overall signal-to-interference ratio at the detector output, was used as a criterion of optimality. Two important practical cases were considered: (1) The carrier is narrow-band; and (2) the carrier is broadband. New expressions have been obtained for optimum frequencies.


ASA 132nd meeting - Hawaii, December 1996