Development Of Integrated Data Synthesis Processing Software For Photoelectric Theodolite

Photoelectric theodolite is widely used in target range and aerospace field;but its angle measurement data needs to obtain the target coordinate data,and error correction,multi-station rendezvous,ballistic filtering and other post-processing is done by separated software.In view of this problem,Through the research and analysis of GJB2234A-2014 photoelectric theodolite post-data Processing Method and other related military standard specifications,the project,a set of photoelectric theodolite data comprehensive processing software was designed.The software can process the network relay measurement data of multiple devices,realize the system error correction of the equipment and environment,the coordinate conversion,intersection solution,and ballistic smoothing and other functions of the measurement data.Software function and performance evaluation are conducted through measured ballistic data and simulated ballistic data and equipment information.The main research contents of the paper are as follows:1)In view of the problems in different coordinate systems during data acquisition,processing and delivery,the paper adopts various algorithms to implement them.Specifically,（1）uses Gaussian positive and negative algorithm to complete the conversion between Gaussian coordinate system,and uses coordinate rotation and translation;（2）completes the conversion between different reference ellipsoid coordinate system;（3）completes the coordinate transformation of the coordinate system of the same reference ellipsoid.Simulation and measured data show that the algorithm resolves correctly and accurately meets the range requirements.2)For different cloth position and measurement accuracy of theodolite rendezvous solution,this paper adopts fusion weighted multiple station rendezvous algorithm,with theodolite Angle random error variance and target distance as the right,on the basis of double station rendezvous algorithm to realize the multi-station weighted rendezvous calculation algorithm,simulation and measured data show that the ballistic solution accuracy has improved.3)For the problem of field value elimination of angle measurement data,this paper first handles the angle continuously,effectively avoids the problems caused by zero jump of Angle,adopts the backward extrapolation error correction algorithm,uses the threshold based on dynamic standard deviation and combined with the motion conditions,and effectively improves the accuracy of field value judgment.For the part of missing data,the interpolation algorithm is interpolation algorithm to complement the missing ballistic data.Software operation indicates that a complete and smooth trajectory trace line can be formed after the above processing;4)The software was implemented in MATLAB and C # mixed programming mode and based on SQL database.The final designed software has the functions of target range information management,relevant information configuration of optical measurement equipment,pre-processing of measurement data,multi-station rendezvous and weighted fusion solution,ballistic smoothing and interpolation,which meet the requirements of Party A and has passed the test and acceptance smoothly.