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1. WO2020140141 - RADAR FOR CARTOGRAPHY AND MONITORING

Publication Number WO/2020/140141
Publication Date 09.07.2020
International Application No. PCT/BR2018/050491
International Filing Date 30.12.2018
IPC
G01S 13/90 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88Radar or analogous systems, specially adapted for specific applications
89for mapping or imaging
90using synthetic aperture techniques
CPC
G01S 13/90
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88Radar or analogous systems specially adapted for specific applications
89for mapping or imaging
90using synthetic aperture techniques ; , e.g. synthetic aperture radar [SAR] techniques
G01S 13/9023
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88Radar or analogous systems specially adapted for specific applications
89for mapping or imaging
90using synthetic aperture techniques ; , e.g. synthetic aperture radar [SAR] techniques
9021SAR image post-processing techniques
9023combined with interferometric techniques
G01S 13/9076
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88Radar or analogous systems specially adapted for specific applications
89for mapping or imaging
90using synthetic aperture techniques ; , e.g. synthetic aperture radar [SAR] techniques
904SAR modes
9076Polarimetric features in SAR
Applicants
  • T - JUMP TECNOLOGIAS LTDA [BR]/[BR]
Inventors
  • FABI MOREIRA, LAILA
Agents
  • RIBEIRO MAGALHÃES, Cicero
Priority Data
Publication Language Portuguese (PT)
Filing Language Portuguese (PT)
Designated States
Title
(EN) RADAR FOR CARTOGRAPHY AND MONITORING
(FR) RADAR POUR CARTOGRAPHIE ET SURVEILLANCE
(PT) RADAR PARA CARTOGRAFIA E MONITORAMENTO
Abstract
(EN)
Radar for cartography and monitoring carried by an unmanned aerial vehicle (UAV) (11) using interferometric synthetic-aperture radar (InSAR) with a pulse repetition frequency (PRF) of at least 50 kHz with a peak power of between 1 mW and 1 W, in which the data rate corresponding to the return echoes is reduced by the sum of the data from the same range cells (C11, C2,1, C3,1, Cm,1) corresponding to 100 or more return pulses (21, 22, 23, 24). The flight altitude of the UAV above ground level is between 10 and 500 meters and the radiation lobe of the antennas has an azimuth beamwidth (16) of between 20° and 80° and an elevation beamwidth of between 45° and 70°; said antennas have a static orientation and can be built into the physical support of the electronic circuits of the radar. The synthetic-aperture technique can be combined with one or both of the techniques in the group comprising interferometry and polarimetry.
(FR)
L'invention concerne un radar pour cartographie et surveillance transporté par véhicule aérien sans pilote (11) utilisant la technique d’ouverture synthétique par interférométrie SAR, avec taux de répétition d’impulsions (PRF) d’au moins 50 kHz et une puissance de crête comprise entre 1 milliwatt et 1 watt, le taux de données correspondant aux échos de retour pouvant être réduit par addition des données des mêmes cellules de portée (C11, C2,1, C3,1, Cm,1) correspondant à au moins 100 impulsions de retour (21, 22, 23, 24). L’altitude de vol du véhicule aérien sans pilote sur le terrain est comprise entre 10 et 500 mètres et le lobe de rayonnement des antennes présente une largeur de faisceau en azimut (16) comprise entre 20 et 80 degrés, et une largeur de faisceau en élévation comprise entre 45 et 70 degrés, lesdites antennes possédant une orientation fixe et pouvant être intégrées dans le support physique de l’ensemble de circuits électroniques du radar. La technique d’ouverture synthétique peut être combinée avec au moins l’une des techniques du groupe constitué par l'interférométrie et la polarimétrie.
(PT)
Radar para cartografia e monitoramento transportado por VANT (veículo aéreo não tripulado) (11) utilizando a técnica de abertura sintética por interferometria SAR, com taxa de repetição de pulsos (PRF) de, no mínimo, 50kHz com uma potência de pico entre 1 miliwatt e 1 watt, onde a taxa de dados correspondentes aos ecos de retorno ser reduzida mediante a soma dos dados das mesmas células de alcance (C11, C2,1, C3,1, Cm,1) correspondentes a 100 ou mais pulsos de retorno (21, 22, 23, 24). A altitude de vôo do VANT sobre o terreno está compreendida entre 10 e 500 metros e o lóbulo de radiação das antenas tem largura de feixe em azimute (16) compreendida entre 20 e 80 graus, e largura de feixe em elevação compreendida entre 45 e 70 graus, ditas antenas tendo orientação fixa e podendo estar integradas ao suporte físico do conjunto de circuitos eletrônicos do radar. A técnica de abertura sintética poderá ser combinada com uma ou ambas dentre as técnicas do grupo que compreende interferometria e polarimetria.
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