UAVs flying in formation uses passive positioning to adjust each other's position to avoid external interference. This paper establishes a UAV positioning model based on the three-circle positioning method, and designs an adjustment scheme for the UAV formation flight process on this basis. This paper firstly analyses the geometric characteristics of the signals emitted by the three UAVs in the circular array, and introduces the law of sines on the basis of which the problem of UAV positioning is transformed into the problem of solving the trigonometric equations and obtaining the general solution of the UAV position. In addition, this paper introduces the three-circle positioning method to improve the model and simplify the calculation. In order to achieve effective positioning of UAVs, this paper discusses the number of UAVs in categories. When an UAV is added, it is discussed based on the different characteristics of the included angle formed by FY00 UAV, UAV to be tested and another UAV with accurate position. In this way, the specific number of the unmanned aerial vehicle that transmits the signal can be determined according to the specific angle received by the unmanned aerial vehicle to be tested. If the UAV is indeed in this position, it can be judged that only one more aircraft is needed by comparing the predicted value of the signal range received by the UAV to be tested with the signal actually received by the UAV to be tested. Based on the above results, a total of 3 UAVs are selected to transmit signals, and this paper takes the deviation sum of the actual position of each UAV on the circumference and the ideal position as the loss function, and iteratively calculates the positions of the other UAVs on the circumference by using the sequence traversal method, and solves the adjusted minimum deviation sum of 3.60, and the subsequent value of the loss function has a tendency to rise in a small range, but tends to be stable in general.
Research on Bearings-Only Passive Location of UAV Formation Based on Three-Circle Positioning Method
28.06.2024
1242303 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Bearings Only Location Using Nonlinear Least Squares
British Library Conference Proceedings | 1997
|Bearings-only location using nonlinear least squares
IEEE | 1997
|COOPERATIVE EMITTER GEO-LOCATION USING BEARINGS-ONLY MEASUREMENTS
British Library Conference Proceedings | 2006
|