Army Field Astronomical Positioning And Orientation Data Processing System Development

The latest development in the mode of warfare and the advent of information-based warfare preluded by electronic neutralization combine to put those lacking in electronic countermeasures in a disadvantageous and vulnerable position. Satellite and radio signals are susceptible to ECM interferences and attacks; therefore it is important for us to complement high-tech equipment with traditional theories and techniques and create new methods for army survey.The present article proposes ways of providing initial data for survey combat formation and control measurement with the help of traditional theories in observing celestial bodies. The process of determining location and direction through the multistellar equal altitude method involves considerable preliminary workload related to star selection that includes tasks which are trivial and complicated in nature, but very important for the accuracy of measurement. The present research proposes a method with improved accuracy and speed on the basis of fuzzy star selection theory.The present paper begins with an analysis of latest academic achievements and developments at home and abroad in the field of astronomical location and direction determination. Then astronomical location and direction determination approaches are examined in four aspects with the use of singular, dual and multiple celestial body/bodies. The current research focuses on the coordinate representation of celestial bodies as projected upon the celestial sphere. The research suggests computerized selection, measurement and calculation of star should, in order to improve measurement efficiency, be adopted with an astronomical location and direction determination system developed on the Visual Basic platform.The application of high-precision electronic theodolite in connection with computer in astronomical location and direction determination simplifies measurement procedures and automates data recording. The proposed new approach proves to enjoy higher speed and accuracy. The research concludes that a combination of traditional theory and latest technology can make astronomical location and direction determination a feasible and reliable supplement to army survey operation.