ANALYSIS OF EFFICIENCY OF ADAPTIVE POLARIZING FILTER UNDER THE SIMULTANEOUS ACTION OF ACTIVE AND PASSIVE NOISE
Науковий журнал «Радіоелектроніка, інформатика, управління»
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ANALYSIS OF EFFICIENCY OF ADAPTIVE POLARIZING FILTER UNDER THE SIMULTANEOUS ACTION OF ACTIVE AND PASSIVE NOISE |
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Piza, D. M.; Zaporizhzhya National Technical University Semenov, D. S.; State Enterprise “Scientific-Industrial Complex“Iskra” Moroz, G. V.; Zaporizhzhya National Technical University |
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Аdaptation; a polarizing filter; clutter; jammer; training sample |
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<p>Context. The spatially-distributed nature of the passive component destroys the spatial correlation of point sources of active interference under the influence of combined interference. This leads to a significant degradation in the suppression coefficient of the active component of the combined interference. Therefore, it is relevant to research the influence of the passive component of the combined interference on the process of compensation of active noise interference, as well as the formation of a classified training sample generated with only active interference, to adapt the weighting coefficients of the polarization filter.</p><p>Objective is research of the frequency method that used for the formation of a classification training sample for the adaptation of the polarization filter’s weighting coefficients under conditions of simultaneous acting of active noise and passive interference along the main beam of the antenna pattern.</p><p>Method. The proposed method uses the frequency differences in the width of the spectrum of active and passive interference for training sample forming.</p><p>Results. The simulation model of the adaptive polarization filter was developed. It was found with analyzing of the formation of weight coefficients that the proposed method can provide effective compensation of the active component of the combined interference. The conducted experimental researches of the polarization filter in the field conditions confirmed the high efficiency of suppression of active noise interference that acts along the main beam of the antenna pattern. Scientific novelty is consist in the development of a new method and an imitation model for the formation of a classification training sample for the adaptation of the weight coefficients of a polarization filter.<br />Practical significance was determined by the conducted experimental researches in the field conditions with quantitative estimates of the effectiveness of the proposed method. It was shown that using of the frequency differences in the structure of the active and passive components of the combined noise, it is possible to achieve of the cancellation factor equal 25 decibels and more for the active noise that actin the direction of the main beam of antenna pattern.<br /><br /><br /></p> |
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Zaporizhzhya National Technical University 2017-11-30 09:44:40 |
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application/pdf http://ric.zntu.edu.ua/article/view/114688 |
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Radio Electronics, Computer Science, Control; No 3 (2017): Radio Electronics, Computer Science, Control |
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ru |
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Copyright (c) 2017 D. M. Piza, D. S. Semenov, G. V. Moroz |
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