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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v51.i1.100
pages 97-99

Estimate of the Theoretical Limit for the Actual Sensitivity of a Radiometer

Valeriy Ivanovich Antyufeev
Kharkov National University of Radio Engineering and Electronics, 14, Lenin Ave, Kharkov, 61166; and Joint Research Institute for the Armed Forces, OJSC Saturn Research and Production Association, Kyiv, Ukraine

RESUMO

A solution has been proposed in [1] to the problem of synthesizing the optimum structure and estimating the potential sensitivity of a modulation type radiometer. It proceeds from general theory of signal parameter estimation and assumes fluctuations of the receiver amplification factor (AF) to be a zero mean Gaussian random value with the variance σ2.
The present paper is aimed at determining the theoretical limit to the actual sensitivity of a radiometer when the AF variations can be represented as a stochastic process which occurs due to influence of a dynamic error of discriminating the fluctuations against the internal noise of the receiver.


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