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Journal Achievements of Modern Radioelectronics №10 for 2013 г.
Article in number:
Estimation of concentrated noises LFM-receiver with usage of matched filtering
Keywords: : inclined scanning ionosphere linear frequency modulation estimation additive concentrated interference HF radio communication efficient matched filtering
Authors:
M.A. Kiselyov - Senior Researcher - JSC «Omsk research institute of instrument engineering»
Abstract:
The issues of additive noises estimation in the channel with constant parameters on the basis of signal receiver with linear frequency modulation are analyzed. It is shown that in order to increase accuracy of additive noises estimation, traditional scheme of signal receiver with LFM should be added by specific aids - e.g., filter, matched with additive harmonic noise response. The analytical formula for impulse characteristic of matched filter is obtained and conditions of its use application in signal receiver complex with LFM are defined. The ratio between parameters scheme of modified signal receiver with LFM is found out, which is reached by resolvability of noises analysis in frequency domain. The methodology of error compensation by additive noises level estimation is offered. This methodology is specified by adjacent noises impact and received signal with LFM.
Pages: 52-62
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