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为了确保空间相机在轨长期、可靠工作,依据空间相机的系统结构和原理,提出了一种空间相机地面实时动态集成测试方法。采用自开发的星上载荷控制系统仿真设备、动态成像目标生成及模拟系统、主控系统仿真测试设备、CCD成像系统仿真测试设备、编码器仿真测试设备、热控仿真测试设备、电源监控系统和图像快视及数据记录系统等作为单元测试设备,应用卫星同步时钟和时钟同步采集卡,实现分布式仿真测试设备的精确时钟同步。以仿真调度控制服务器作为集成测试的控制核心,建立了集成运算模型、集成测试方法和网络实时动态集成测试工作平台。通过0.06(°)/s恒速运动调偏流角试验,验证了集成测试技术的有效性,连续拍摄到的动态目标调整图像倾斜小于0.01°。
In order to ensure long-term and reliable operation of the space camera, a real-time dynamic integrated test method for the space camera is proposed based on the system structure and principle of the space camera. Self-developed star load control system simulation equipment, dynamic imaging target generation and simulation system, the main control system simulation test equipment, CCD imaging system simulation test equipment, encoder simulation test equipment, thermal simulation test equipment, power supply monitoring system and Image frantic and data recording system as a unit test equipment, the application of satellite synchronous clock and clock synchronization acquisition card, distributed simulation test equipment to achieve accurate clock synchronization. With the simulation scheduling control server as the control core of integrated testing, an integrated computing model, integrated testing method and network real-time dynamic integrated testing platform are established. Through the 0.06 (°) / s constant speed moving bias drift angle test, the effectiveness of the integrated testing technology is verified. The dynamic target adjustment images taken continuously are inclined less than 0.01 °.