RU2008110294A - METHOD FOR TWO-STAGE RECOVERY OF IMAGES IN MULTI-CHANNEL RADARS AND RTLS - Google Patents
METHOD FOR TWO-STAGE RECOVERY OF IMAGES IN MULTI-CHANNEL RADARS AND RTLS Download PDFInfo
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- RU2008110294A RU2008110294A RU2008110294/09A RU2008110294A RU2008110294A RU 2008110294 A RU2008110294 A RU 2008110294A RU 2008110294/09 A RU2008110294/09 A RU 2008110294/09A RU 2008110294 A RU2008110294 A RU 2008110294A RU 2008110294 A RU2008110294 A RU 2008110294A
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- 238000000034 method Methods 0.000 title claims abstract 11
- 238000011084 recovery Methods 0.000 title 1
- 239000011159 matrix material Substances 0.000 claims abstract 37
- 238000005259 measurement Methods 0.000 claims abstract 8
- 238000001514 detection method Methods 0.000 claims abstract 2
- 230000005855 radiation Effects 0.000 claims abstract 2
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Abstract
1. Способ двухэтапного восстановления изображений в многоканальных радиолокационных и радиотеплолокационных станциях (РЛС и РТЛС), заключающийся в том, что при наблюдении за поверхностью или воздушной обстановкой с помощью сканирующей антенны в виде Q×K-матрицы приемных элементов последовательно смещают антенну по азимуту и углу места соответственно на величину (2n+1)-й и (2m+1)-й части ширины диаграммы направленности антенны (ДНА) на уровне 0,5 мощности построчно в зоне обзора, измеряют при каждом ij-м положении антенны в q,k-x измерительных каналах значения амплитуд приемных сигналов уqk(i,j), прошедших операции амплитудного детектирования, и формируют из них I×J-матрицы измерений Yqk с элементами yqk(i,j), i=, j=, которые далее обрабатывают, ! отличающийся тем, что увеличивают число каналов измерения Q>1, K>1 и располагают полученные матрицы амплитуд Yqk в составе блочной матрицы Y, далее умножают матрицу Y слева на вычисленную по определенной методике матрицу весовых коэффициентов НA:=HA·Y, в результате получают матрицу промежуточных оценок затем умножают матрицу промежуточных оценок справа на матрицу весовых коэффициентов НB:=·НB, в результате получают искомую матрицу оценок совокупность элементов которой (i,j), i=, j= представляет восстановленное амплитудное изображение зоны обзора РЛС или РТЛС с повышенным в несколько раз разрешением по угловым координатам. ! 2. Способ по п.1, отличающийся тем, что смещают антенну по азимуту и углу места на всю ширину ДНА, а совокупность q,k-x измерений амплитуд yqk(i,j), полученных при i,j-м положении антенны, располагают в составе матрицы Y1(i,j), далее умножают матрицу Y1(i,j) слева на вычисленную по определенн�1. The method of two-stage image restoration in multichannel radar and radiolocation stations (radar and RTLS), which consists in the fact that when observing a surface or air situation using a scanning antenna in the form of a Q × K matrix of receiving elements, the antenna is successively shifted in azimuth and angle places, respectively, by the value of the (2n + 1) th and (2m + 1) th parts of the antenna radiation pattern (BOTTOM) width at a power level of 0.5 line by line in the field of view, measured at each ijth position of the antenna in q, kx measuring channel the values of the amplitudes of the receiving signals yqk (i, j) that underwent amplitude detection operations, and form from them I × J measurement matrices Yqk with elements yqk (i, j), i =, j =, which are further processed,! characterized in that they increase the number of measurement channels Q> 1, K> 1 and arrange the obtained amplitude matrices Yqk as part of the block matrix Y, then multiply the matrix Y on the left by the matrix of weight coefficients HA calculated by a certain technique: = HA · Y, as a result, the matrix of intermediate estimates is then multiplied by the matrix of intermediate estimates on the right by the matrix of weight coefficients НB: = · НB, as a result, the desired matrix of estimates is obtained, the set of elements of which (i, j), i =, j = represents the reconstructed amplitude image of the field of view Radar or RTLS with several times higher resolution in angular coordinates. ! 2. The method according to claim 1, characterized in that the antenna is shifted in azimuth and elevation along the entire width of the bottom of the beam, and the set q, kx of measurements of the amplitudes yqk (i, j) obtained at the i, jth position of the antenna is located the composition of the matrix Y1 (i, j), then we multiply the matrix Y1 (i, j) on the left by the
Claims (3)
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RU2008110294/09A RU2379705C2 (en) | 2008-03-17 | 2008-03-17 | Method of two-stage image recovery in multi-channel radio- and radio-ir-radars |
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RU2008110294/09A RU2379705C2 (en) | 2008-03-17 | 2008-03-17 | Method of two-stage image recovery in multi-channel radio- and radio-ir-radars |
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RU2008110294A true RU2008110294A (en) | 2009-10-10 |
RU2379705C2 RU2379705C2 (en) | 2010-01-20 |
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RU2528169C1 (en) * | 2013-04-11 | 2014-09-10 | Открытое акционерное общество "Научно-исследовательский институт приборостроения имени В.В. Тихомирова" | Method of forming radar image of surface using on-board radar set installed on moving aircraft |
RU2657331C1 (en) * | 2017-02-20 | 2018-06-13 | Акционерное общество "Рязанская радиоэлектронная компания" (АО "РРК") | Method for constructing the temperature map of terrain |
CN110726967B (en) * | 2019-10-25 | 2021-08-03 | 北京理工大学 | One-sided sparse nested array design method for one-dimensional array direction finding |
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EP0679245B1 (en) * | 1992-12-30 | 1999-04-07 | Universal Instrument Corporation | Self-contained multifunctional lcd flight indicator |
US5329286A (en) * | 1993-06-29 | 1994-07-12 | The United States Of America As Represented By The Secretary Of The Air Force | Method for two dimensional doppler imaging of radar targets |
US5442364A (en) * | 1993-07-22 | 1995-08-15 | The United States Of America As Represented By The Secretary Of The Navy | Alignment and beam spreading for ground radial airborne radar |
US5486832A (en) * | 1994-07-01 | 1996-01-23 | Hughes Missile Systems Company | RF sensor and radar for automotive speed and collision avoidance applications |
RU2265866C1 (en) * | 2004-01-28 | 2005-12-10 | Закрытое акционерное общество "Новые технологии" | Method for increasing radiolocation resolution, system for realization of method and method for remote detection of small objects by system |
RU2284548C1 (en) * | 2005-06-23 | 2006-09-27 | Рязанская государственная радиотехническая академия | Method of observing surface and air situation on base of airborne radar |
RU2292060C1 (en) * | 2005-06-28 | 2007-01-20 | Рязанская государственная радиотехническая академия | Mode of observation for air objects and surface on the base of an airborne radar |
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