Analysis on the Feasability of Airborne GNSS-R Receivers for Weather Nowcasting and Target DetectionAirplanesSatellitesSoil moistureGlobal navigation satellite systemGlobal Positioning SystemSpatial resolutionMeteorologyWeather forecast relies to a large extent on data acquired by satellite. LEO polar satellites...
In order to detect the position of sea surface target remotely using delay-Doppler map( DDM) of global navigation satellite system-reflections( GNSS-R),the research realizes the reverse process of reconstructing the scattering area image from the DDM according to the theory of generating air-borne...
intargetdetection.Firstly,adeeplyresearchwascarriedoutintonotonlyGNSSreflectedsignalfeatures,butkeyreceivingandprocessingtechnology.AfterananalysisofexistingobjectdetectionmethodsbasedonGNSS-Rtechnology,itsdisadvantagewasfoundandanewmodifiedmethodwasproposed.Secondly,anutilitysoftwarecalledLow-altitudemovingtargetdetectionwas...
[5] JI W,XIU C,LI W,et al.Ocean surface target detection and positioning using the spaceborne GNSS-R delay-Doppler maps[C]//IEEE International Symposium on Geoscience and Remote Sensing.Piscataway,NJ:IEEE Press,2014:3806-3809. [6] CARDELLACH E,FABRA F,NOGUéS-CORREIG O,et al.GNSS-R...
Simulation results show that the proposed method can effectively extract the weak target echo without prior information, and has better target detection performance compared with the traditional two-dimensional matched filter target detection method.温媛媛...
That is surely one of the main advantages of this method, born by chance from the incongruous reflection of the GNSS electromagnetic wave on various surfaces (soil, water, snow, vegetation, target detection such as a boat, etc.).José Darrozes...
Ocean Surface binary target positioning method based GNSS-R, which has six steps: First, the corresponding receiver platform delayDoppler Sat1 and two satellite Sat2 maximum correlation value PMax1, PMax2 extracted storage; two , the time delay value of the above values and the Doppler ...
target detectionGlobal navigation satellite system reflectometry (GNSS-R) receivers produce delay-Doppler maps (DDMs) by incoherently integrating coherent integration results. Due to system dynamics, during incoherent integration, the receiver aligns each coherent result by tracking the delay and Doppler of...
detection region by a target detection module and determining a time delay Dropper coordinate of a correlation power peak value as a time delay Dropper coordinate (t, fd) of the position of the target; step three, converting the obtained time delay Dropper coordinate (t, fd) of the target ...
detection areas, and recording the distances as d1 and d2; step five, calculating longitude and latitude (TLon, TLat) of the corresponding correlation value maximum spot which is a target occurring position spot according to parameters obtained by the steps 1-4; step six, building a multi-...