Research And Implementation Of Satellite Navigation Signal Enhancement Mission Planning Method

With the rapid development of global space industry and the improvement of China's comprehensive national strength,China has made great progress in the field of space system in recent years.At present,China has launched a variety of functional satellites,such as imaging satellites and navigation satellites.In order to make full use of the function of regional signal enhancement of navigation satellite,the key of this paper is to build a reasonable,adaptive and efficient task scheduling model of navigation satellite signal enhancement.In this paper,the research status of signal enhancement task planning for navigation satellite at home and abroad is reviewed,the characteristics and existing problems of this system are analyzed,the resource multi constraint model is established,and three kinds of algorithm designs are realized,including FCFS algorithm,greedy algorithm with heuristic algorithm and improved multi group evolutionary algorithm.The experimental verification and comparison of the model and algorithm are carried out Analysis.These three algorithms are embedded in the prototype software function module,and the software and sex function are scene building module and algorithm module.By adjusting the parameters of the algorithm and designing the functions to adapt to different scheduling tasks;in the scenario construction,simulate the specific process of navigation satellite task planning and scheduling,and reasonably configure the scheduling scenario.After detailed theoretical demonstration and comparison of test results,under the driving of different scheduling algorithms,different algorithms have their own advantages and disadvantages in the performance of scheduling rate and scheduling time consumption,so it is very important to match the scheduling algorithm calculation according to specific scheduling tasks reasonably.