On the Doppler Selection Efficiency at Shorter Millimeter Wavelengths
Experimental statistics of the disturbances related to millimeter radiowave backscatter from vegetation are obtained. Major attention is paid to the signals backscattered from deciduous trees and having higher intensity vs. radio echoes from other types of vegetation. The signals reflected from deci...
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| Sprache: | Russian |
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Видавничий дім «Академперіодика»
2012
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| Online Zugang: | http://rpra-journal.org.ua/index.php/ra/article/view/533 |
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| Назва журналу: | Radio physics and radio astronomy |
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rpra-journalorgua-article-5332012-12-09T13:02:08Z On the Doppler Selection Efficiency at Shorter Millimeter Wavelengths Об эффективности доплеровской селекции в коротковолновой части миллиметрового диапазона радиоволн Gutnik, V. G. Sharapov, L. I. Gorobets, V. N. Goncharenko, Yu. V. Experimental statistics of the disturbances related to millimeter radiowave backscatter from vegetation are obtained. Major attention is paid to the signals backscattered from deciduous trees and having higher intensity vs. radio echoes from other types of vegetation. The signals reflected from deciduous trees are shown to be statistically nonstationary for short observation periods. For these, the estimated effectiveness model for the doppler selectors is obtained. It is shown that using adaptive filtration methods with the disturbance statistics accounted increase these devices efficiency. Проанализированы экспериментальные статистические характеристики помех, обусловленных обратным рассеянием радиоволн коротковолновой части миллиметрового диапазона растительностью. Основное внимание уделено сигналам, отраженным лиственными деревьями, имеющим большую интенсивность по сравнению с радиолокационными отражениями от других видов растительности. Показано, что для коротких времен наблюдения сигналы, отраженные лиственными деревьями, – статистически нестационарны. Для них получены модельные оценки эффективности устройств доплеровской селекции. Показано, что применение методов адаптивной фильтрации помех, с учетом их статистических характеристик, повышает эффективность этих устройств. Видавничий дім «Академперіодика» 2012-12-09 Article Article application/pdf http://rpra-journal.org.ua/index.php/ra/article/view/533 РАДИОФИЗИКА И РАДИОАСТРОНОМИЯ; Vol 14, No 1 (2009); 66 RADIO PHYSICS AND RADIO ASTRONOMY; Vol 14, No 1 (2009); 66 РАДІОФІЗИКА І РАДІОАСТРОНОМІЯ; Vol 14, No 1 (2009); 66 2415-7007 1027-9636 ru http://rpra-journal.org.ua/index.php/ra/article/view/533/98 |
| institution |
Radio physics and radio astronomy |
| baseUrl_str |
|
| datestamp_date |
2012-12-09T13:02:08Z |
| collection |
OJS |
| language |
Russian |
| format |
Article |
| author |
Gutnik, V. G. Sharapov, L. I. Gorobets, V. N. Goncharenko, Yu. V. |
| spellingShingle |
Gutnik, V. G. Sharapov, L. I. Gorobets, V. N. Goncharenko, Yu. V. On the Doppler Selection Efficiency at Shorter Millimeter Wavelengths |
| author_facet |
Gutnik, V. G. Sharapov, L. I. Gorobets, V. N. Goncharenko, Yu. V. |
| author_sort |
Gutnik, V. G. |
| title |
On the Doppler Selection Efficiency at Shorter Millimeter Wavelengths |
| title_short |
On the Doppler Selection Efficiency at Shorter Millimeter Wavelengths |
| title_full |
On the Doppler Selection Efficiency at Shorter Millimeter Wavelengths |
| title_fullStr |
On the Doppler Selection Efficiency at Shorter Millimeter Wavelengths |
| title_full_unstemmed |
On the Doppler Selection Efficiency at Shorter Millimeter Wavelengths |
| title_sort |
on the doppler selection efficiency at shorter millimeter wavelengths |
| title_alt |
Об эффективности доплеровской селекции в коротковолновой части миллиметрового диапазона радиоволн |
| description |
Experimental statistics of the disturbances related to millimeter radiowave backscatter from vegetation are obtained. Major attention is paid to the signals backscattered from deciduous trees and having higher intensity vs. radio echoes from other types of vegetation. The signals reflected from deciduous trees are shown to be statistically nonstationary for short observation periods. For these, the estimated effectiveness model for the doppler selectors is obtained. It is shown that using adaptive filtration methods with the disturbance statistics accounted increase these devices efficiency. |
| publisher |
Видавничий дім «Академперіодика» |
| publishDate |
2012 |
| url |
http://rpra-journal.org.ua/index.php/ra/article/view/533 |
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2025-12-02T15:51:04Z |
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