Research For 3D Altitude Measurement And The Amendatory Method To The Tail-flame Tracking Of The Rocket In Series Image For Ranges

The moving position and 3D altitude measurements is necessary when range bases launchmissiles and cannonballs, especially large carrier rocket. Acquiring the parameters of objectposition and altitude is significant for the analysis of flight states and malfunctions, the design ofaerocrafts and the improvement of experimentation capability in ranges. So the 3D altitudemeasurement and the amendatory tracking method to the tail-flame of the rocket in series imagefor ranges are mainly discussed and researched in this paper. The optical measurement methodsof 3D altitude parameters are introduced and an algorithm to measure revolving angle based onscrewy line is presented. Moreover, the problem about tail-flame tracking of rocket is putforward and the amendatory tracking rules about the tracked position of the tail-flame arepresented. An international advanced target tacking algorithm, which is an analytical trackingprocess based on the affine transformation model by simulating biological vision machinery, isalso introduced. And the mathematical denotation for the infinitesimal generator of affine Liegroup is deduced in this paper. The main work of this dissertation include 4 sections:1, The optical measurement methods of 3D altitude parameters are introduced and thealgorithm to measure revolving angle by using screwy line is further researched. And themeasurement precision is analyzed and the results of some experiments, which are based onemulational and realistic digital images of rocket for ranges, are depicted.2, This section studied the measurement method error about pitching angle, sheer angle andrevolving angle.3 , According to the practice problem, the paper introduced the producing process and the fluentfield structure of missile tail flame, analyzed and discussed the position tracking of missileby using the series tail-flame in theory. Combining the realistic visible-light images andinfrared images, the paper presented the rules about the tracked position of the tail flame.4, Based on the computational vision, this section explored a novel target tracking method. Thismethod adopted affine transformation model and a Lie derivative-based analytical algorithm.We introduced the process and characters in extracting information of biological visionsystem, studied the feasibility of the generalized Gabor function used as receptive fieldfunction in extracting information and analyzed affine transformation group and Liederivatives. Finally, we deduced the mathematical denotation for Lie derivatives, i.e. theinfinitesimal generator of the geometric distortion in affine transformation.