Nonlinear aiming line modeling method for target azimuth prediction
A technology of target orientation and modeling method, which is applied in the directions of measuring devices, measuring angles, surveying and navigation, etc., and can solve the problems of non-negligible model errors, errors, and affecting the accuracy of projectile hits, etc.
Active Publication Date: 2020-09-04
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
The invention provides a nonlinear aiming line modeling method for target azimuth prediction, which comprises the following steps that: a shooter aims at and locks a target when the target is closestto a launching point, so that an aiming line moves along with the target, and the target is ensured to be on the aiming line; the target is continuously tracked before the launcher launches, and the angle is updated by utilizing an inertia measurement assembly on the launcher, and time and the angle rotated by the aiming line are outputted; then an objective function of the aiming line predictionnonlinear model is established and solved; an optimal solution of parameters in the aiming line prediction nonlinear model then is calculated by utilizing a nonlinear least square algorithm; and the position of the virtual aiming line is estimated according to the aiming line prediction model after the launcher launches, so that the launcher tracks the target. According to the invention, the emitter aiming device is used for aiming at a target when a target motion trail is approximately vertical to the aiming line direction, the inertia measurement assembly of the emitter is used for measuringthe rotation angle of the aiming line, multiple times of aiming line angle measurement are completed in an aiming stage, and all angle data and corresponding time form measurement data.
Angle measurementNavigational calculation instruments +1
Computational physicsLeast squares +4
- Experimental program(3)
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