Optimization Design Of Station Distribution For Exterior Ballistic Measurement Based On System Idea

Exterior ballistic measurement system,which is the most important part of Tracking Telemetering and Command(hereinafter as "TT&C"),has an irreplaceable role in the missile and spacecraft test.The real time data that has been processed by central computer is the important source for safety control,commanding display and equipment guidance.During the post-flight data processing,the exterior ballistic data after exact error correction is used to separate and determine the guidance error,which is applied for missile and rocket improvement and perfection.Station distribution is a key part of the early demonstration for TT&C project Optimization design of station distribution,which aims to construct a proper topological structure under special constraint conditions,can improve efficiency of measure system.Station distribution geometry is the only factor which influences measurement system precision after the equipment accuracy and flight trajectory is fixed.How to design the distribution geometry of many optical and radio equipments will influence the application performance of TT&C,and even determine whether we can get enough high precision data.Aiming at the current main measure system and new system in research,an optimization design model for station distribution having practical engineering value is developed in this paper based on the existing achievements.In order to improve the measure level of initial phase ballistic,the photoelectric theodolite dynamic precision is introduced to the realtime intersection measure.According to different type and service year of photoelectric theodolites, a dynamic weight algorithm is presented,which has high intersection precision.The main research contents are shown as the following:1.Reviewing the relative documents on optimization design of station distribution,the importance of studying optimization design in the TT&C is pointed out.(in ChapterⅠ)2.Some basic theories including data processing method,earth ellipsoid and coordinate transformation are briefly introduced.A high precision dynamic weight algorithm is proposed after improving the usual intersection algorithm according to the theoretical derivation and project experience.(in ChapterⅡ)3.Considering the project background for optimization design of station distribution and facing the specific monitoring and control tasks,the characteristics and precision of different measure systems are studied.The constraint conditions which are more suitable for project application are derived.The key factors for constructing the objective function are discussed.(in ChapterⅢ)4.The idea of optimization method of station distribution is put forward based on the system mind.Facing the realtime engineering,a multi-objective station distribution model is constructed,which is applicable for different measure systems.The optimization technique which combined the average precision and feature point precision is developed in this chapter.A lot of simulation results indicate that this model could improve the realtime measure level with high precision.Numerical simulation results show that the optimization model proposed in this paper is suitable for realtime project and can improve the realtime data processing precision.(in ChapterⅣ)...