RU2012143923A - METHOD FOR EXTENDING THE FREQUENCY BAND OF THE ASSESSMENT OF SIGNAL SPECTRA - Google Patents
METHOD FOR EXTENDING THE FREQUENCY BAND OF THE ASSESSMENT OF SIGNAL SPECTRA Download PDFInfo
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- RU2012143923A RU2012143923A RU2012143923/08A RU2012143923A RU2012143923A RU 2012143923 A RU2012143923 A RU 2012143923A RU 2012143923/08 A RU2012143923/08 A RU 2012143923/08A RU 2012143923 A RU2012143923 A RU 2012143923A RU 2012143923 A RU2012143923 A RU 2012143923A
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Abstract
Способ расширения полосы частот оценки спектров сигналов, включающийвыбор порога обнаруженияприем сигнала,аналого-цифровое преобразование сигнала одновременно на как минимум двух аналого-цифровых преобразователях,вычисление амплитудного спектра оцифрованного сигнала,сравнение амплитуд спектральных составляющих с величиной порога обнаружения, отличающийся тем, чтоаналого-цифровое преобразование производится параллельно по крайней мере на двух аналого-цифровых преобразователях (АЦП) с различными частотами дискретизации, вычисление амплитудного спектра производится по каждой оцифрованной последовательности,далее производится развертка полученных спектров на единую ось частот в зоны Найквиста в порядке, обратном их наложению при дискретизации, выделение сигналов в спектральной области путем сравнения с заданным порогом амплитудных спектров от каждого АЦП, выбор спектральных линий от всех АЦП, совпадающих по частотному положению, принятие решения о существовании на этой частоте узкополосного сигнала производится при нахождении линий, совпадающих по положению на частотной оси от всех АЦП.A method of expanding the frequency band for evaluating signal spectra, including selecting a detection threshold for signal reception, analog-to-digital signal conversion on at least two analog-to-digital converters, calculating the amplitude spectrum of the digitized signal, comparing the amplitudes of the spectral components with the detection threshold, characterized in that the analog-to-digital conversion performed in parallel on at least two analog-to-digital converters (ADCs) with different sampling frequencies, calculated The amplitude spectrum is measured for each digitized sequence, then the obtained spectra are scanned onto a single frequency axis in the Nyquist zones in the reverse order of their superposition during sampling, the signals are selected in the spectral region by comparison with a given threshold of the amplitude spectra from each ADC, the spectral lines from all ADCs matching in frequency position, the decision on the existence of a narrow-band signal at this frequency is made when finding lines matching in position w on the frequency axis from all ADCs.
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RU2012143923/08A RU2516763C1 (en) | 2012-10-15 | 2012-10-15 | Method of expanding signal spectrum estimation bandwidth |
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RU2012143923/08A RU2516763C1 (en) | 2012-10-15 | 2012-10-15 | Method of expanding signal spectrum estimation bandwidth |
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RU2012143923A true RU2012143923A (en) | 2014-04-20 |
RU2516763C1 RU2516763C1 (en) | 2014-05-20 |
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RU2765484C2 (en) * | 2021-04-13 | 2022-01-31 | Акционерное общество "Научно-исследовательский институт "Вектор" (АО "НИИ "Вектор") | Method for direction finding and device implementing thereof |
RU2763583C2 (en) * | 2021-04-14 | 2021-12-30 | Акционерное общество "Научно-исследовательский институт "Вектор" (АО "НИИ "Вектор") | Method for determining the frequency in a receiver with subsampling |
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US5294926A (en) * | 1992-10-09 | 1994-03-15 | Hewlett-Packard Company | Timing and amplitude error estimation for time-interleaved analog-to-digital converters |
RU64386U1 (en) * | 2007-01-31 | 2007-06-27 | Институт Прикладной Астрономии Российской Академии Наук | SYSTEM ANALYSIS OF SPECTRA OF NARROWBAND SPACE RADIO EMISSIONS |
RU2431852C2 (en) * | 2008-03-03 | 2011-10-20 | Закрытое акционерное общество "Радиоэлектронная Технологическая Аппаратура" (ЗАО "РЭЛТА") | Radiometric registration of weak broadband radio signal |
RU101842U1 (en) * | 2010-08-13 | 2011-01-27 | Закрытое акционерное общество "Радиоэлектронная Технологическая Аппаратура" (ЗАО "РЭЛТА") | BROADBAND RADIOMETER WITH RADIO INTERFERENCE SELECTION |
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