Target positioning method based on multi-point ranging data of unmanned aerial vehicle

• Main Authors: WEN GONGJIAN, SONG HAIBO
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses a target positioning method based on multi-point ranging data of an unmanned aerial vehicle, and aims to improve the positioning precision of an unmanned aerial vehicle positioning method. According to the technical scheme, a target positioning system composed of a data acquisition module, a position coarse estimation module and a position fine estimation module is constructed. The data acquisition module constructs a data set Data by using data acquired by an unmanned aerial vehicle laser load and an unmanned aerial vehicle navigation system based on data acquisition precision in an unmanned aerial vehicle use manual; the position coarse estimation module reads Data, obtains a first estimated value containing a target position by adopting an optimal linear unbiased estimation method and obtains a second estimated value containing the target position by adopting a weighted least square estimation method; the position fine estimation module constructs a parameter beta to be estimated ba