Weapon System Performance With The Purpose Of Domain Analysis

This thesis focuses on the research of the random cross of target area during the random crossing process. Based on the new temporal-spatial features resulted from the fact that shooting errors increase the indexes in terms of characterizing time features during the random crossing process, the thesis analyzes the average crossing frequency, opportunity-awaiting time, residence time and random crossing cycle. Meanwhile, through the existing equal-interval grid and probability transition matrix to get the first round hit and absorption effect of target area, the dissertation makes in-depth studies of algorithm by using the method of equal probability to partition grid, and it, according to each specific condition, chooses detailed method of equal probability to partition grid to get corresponding analysis and research of first round hit and absorption effect of target area in base of temporal-spatial features.The main contents of the thesis are as follows:(1) Temporal-spatial analysis of random crosses of different target area during the random crossing process.Natural frequency characterizes the vibration of error. The thesis analyzes the temporal-spatial features during the random crossing process by adding natural frequency, characterizing the shooting error in terms of time features. Besides, the dissertation studies the concepts of average crossing frequency and analytical expressions towards banded target area, elliptical target area and rectangular target area to get corresponding probability density distribution function of residence time, awaiting time and crossing period and relative features.(2) Research of the methods of equal probability to partition grid and analysis of the absorption effect of target area.The dissertation researches and analyzes the functions of random crossing process and the two methods of equal-probability partition to the corresponding area formed by coordinates:equal-probability partition method of trapezoid and comprehensive approximation of partition.In accordance with each specific condition, the dissertation chooses different methods of equal probability to partition grid to deduce expressions of probability transform matrix, overspeed transform matrix and less-speed transform matrix to corresponding absorption area, and to deduce relative features of the error of PDF. (3) Derivation of the first shooting hit rate calculation formula and simulation analysis of a shooting target domain.The rate of transition probability matrices is defined by the concept of the transition probability matrix with absorption. The dissertation derivatives the first shooting hit rate calculation formula and discusses the correlation coefficients on the influence of the first shooting hit rate.(4) Software design by the application of above theoretical results.Using the simulation model of MATLAB and the software of VC++, the dissertation realizes man-machine interface, and then forms a software product. By experiencing the interface of visual operation, the result of the above theoretical research can be easily and directly observed by users. Simulation and calculation can also be implemented to achieve the effect of assist research and visualization.