摘要
针对航天、航空遥测实时监控系统组成复杂,且在实际应用中一旦出现故障必须迅速、准确定位的需求特点,提出了利用系统现有资源设计脉冲编码调制模拟器的思想,从而为系统提供一种重要的外部检测信号;对设计中的主要问题,即RS232信号与PCM信号之间的电平、阻抗匹配问题,异步通信与同步通信之间的融合问题,实际位速率测定问题以及帧结构数据生成问题进行了一一分析,并给出了具体解决措施和测试方法;该模拟器实用简单,在实际的飞行试验中发挥了重要作用。
Since the aerospace and aeronautical real time monitoring system is complicated, and it is required to localize the fault quickly and accurately once it occurs during actual application, thus an idea of using the current system resource to design the PCM simulator is pro posed. In this way, an important external detection signals is provided. The main design problems （i. e. , level and resistance matching problem, the blending between asynchronous communication and synchronous communication, the actual rate measurement problem and frame structure data creation problem） are analyzed, and＇the specific solutions and measurement methods are provided. The simulator is easy to use and it plays an important role in actual flight test.
出处
《计算机测量与控制》
CSCD
2006年第12期1700-1703,1716,共5页
Computer Measurement &Control
