Design And Implementation Of Electrical Simulator For Space Surveillance

With the upsurge of the exploring and the growing trend of space combating in the space, the new military struggle collar is gradually moving into outer space. Getting spatial information becomes the most important element of the modern warfare, space surveillance plays a basic and crucial role. This topic is based on test of the functions and technical indexes of the electrical simulator for a space surveillance satellite, and it is the foundation for digital simulation, testing and evaluation of the space camera. The main work and achievements are as follows:In the overall design of the electrical simulator for space surveillance, based on the actual needs the simulator was further divided into separate modules, and processing and controlling process designed the method for carrying out the function and basic processing model of every module.In the design of data processing method for imaging simulation in the electrical simulator, for getting the equivalent function of the camera lens, the simulator created several models including target characteristics, imaging camera and starry background, created the model of optical properties and geometry of the target and background. Imitated the camera for calculating the position and brightness of the target and background. For transporting the data, used TCP/IP protocol as the interface between the GNC dynamics computer and electrical simulator, used CAN bus as the interface between the space camera and electrical simulator. Analyzed and designed the method of controlling data processing, implemented testing and simulating of the entire system with multi-threading technology and real-time transmission in CAN bus.In the implement and test of the electrical simulator, the software was integrated based on the overall design, chose suitable computer and CAN bus based on the require of the simulator and completed the testing, currently, the system has been put into use with stable performance.