RU2009111512A

RU2009111512A - METHOD FOR REMOTE SENSING USING THE MULTI-POSITION RADAR SYSTEM AND A DEVICE FOR ITS IMPLEMENTATION

Info

Publication number: RU2009111512A
Application number: RU2009111512/09A
Authority: RU
Inventors: Вячеслав Филиппович Фатеев (RU); Вячеслав Филиппович Фатеев; Сергей Алексеевич Попов (RU); Сергей Алексеевич Попов; Александр Владимирович Ксендзук (RU); Александр Владимирович Ксендзук
Original assignee: Открытое акционерное общество "Межгосударственная акционерная корпорация "Вымпел" (RU); Открытое Акционерное Общество "Межгосударственная Акционерная Корпорация "Вымпел"
Priority date: 2009-03-31
Filing date: 2009-03-31
Publication date: 2010-10-10
Also published as: WO2010114413A1

Abstract

1. Способ дистанционного зондирования Земли при помощи многопозиционных радиолокационных систем, заключающийся в том, что наблюдаемый участок земной поверхности облучают ортогональными зондирующими сигналами от N передатчиков одновременно, принимают отраженные сигналы и сигналы прямого распространения каждого из N передатчиков, из которого выделяют информацию о состоянии каждого передатчика, его носителя и среде распространения, отличающийся тем, что в антенных системах каждой приемной позиции формируют М неперекрывающихся независимых лучей диаграммы направленности в направлении земной поверхности, отраженные от земной поверхности сигналы в каждом независимом луче принимают на отдельный приемник, в каждом приемнике отраженные от элементарного участка земной поверхности сигналы всех передатчиков разделяют, суммируют по мощности и формируют радиоизображения земной поверхности в виде распределения радиояркости по пространству вдоль и поперек линии движения носителя радиолокационной системы, совмещают радиоизображения с цифровой картой местности и определяют координаты точек, обладающих повышенной яркостью. ! 2. Устройство дистанционного зондирования Земли при помощи многопозиционных радиолокационных систем, содержащее передающую позицию, включающую передатчики ортогональных зондирующих сигналов, и приемную позицию, расположенную на борту воздушного летательного аппарата (ВЛА), содержащую слабонаправленную антенну и антенную систему, формирующую М независимых неперекрывающихся лучей диаграммы направленности, диаграммы направленности слабонаправленной антенны и антенной системы ори� 1. A method for remote sensing of the Earth using multi-position radar systems, which consists in the fact that the observed area of the earth's surface is irradiated with orthogonal sounding signals from N transmitters simultaneously, reflected signals and signals of direct propagation of each of N transmitters are received, from which information about the state of each transmitter is extracted , its carrier and propagation medium, characterized in that in the antenna systems of each receiving position M non-overlapping independent radiation pattern beams are formed in the direction of the earth's surface, the signals reflected from the earth's surface in each independent beam are received on a separate receiver, in each receiver reflected from the elementary section the earth's surface, the signals of all transmitters are separated, summed up in power and form radio images of the earth's surface in the form of the radio brightness distribution in space along and across the line of movement of the carrier of the radar systems s, combine radio images with a digital map of the area and determine the coordinates of points with increased brightness. ! 2. A device for remote sensing of the Earth using multi-position radar systems, containing a transmitting position, including transmitters of orthogonal sounding signals, and a receiving position located on board an airborne vehicle (VLA), containing a weakly directional antenna and an antenna system that forms M independent non-overlapping beams of the directional pattern , the directional patterns of the weakly directional antenna and the antenna system

Claims

1. The method of remote sensing of the Earth using multi-position radar systems, which consists in the fact that the observed portion of the earth's surface is irradiated with orthogonal sounding signals from N transmitters at the same time, receive reflected signals and direct propagation signals of each of the N transmitters, from which information about the status of each transmitter is extracted , its carrier and distribution medium, characterized in that in the antenna systems of each receiving position form M non-overlapping independent radiation of the radiation pattern in the direction of the earth’s surface, the signals reflected from the earth’s surface in each independent beam are received on a separate receiver, in each receiver the signals of all transmitters reflected from an elementary part of the earth’s surface are separated, summed by power and radio images of the earth’s surface are formed in the form of radio brightness distribution over the space along and across the line of movement of the carrier of the radar system, combine the radio image with a digital map of the area and determine coordinates of points with increased brightness.

2. A device for remote sensing of the Earth using multi-position radar systems, containing a transmitting position including transmitters of orthogonal sounding signals, and a receiving position located on board an airborne aircraft (VLA), containing a weakly directed antenna and an antenna system that forms M independent non-overlapping radiation patterns , directional patterns of a weakly directed antenna and antenna system are oriented towards transmitters of the transmitting position and the earth’s surface, respectively, the antenna system is connected respectively to the receivers of the reflected navigation signals, the outputs are connected to the formers of the sequence of power values of the indicated signals, the outputs are connected to the formers of the complete radio images, the outputs are connected to the first input of the visualization of the current radio images, with the second, third and fourth inputs of which connected the output of the on-board device for storing digital terrain maps, on-board flight altitude sensor , VLA pitch and roll, and navigational equipment of the consumer, which is connected to an input omnidirectional antenna outputs current radio images visualization device coupled to the input means of radio communication.