摘要
简述了航姿系统综合检查仪的功能、工作原理以及整体设计方案;采用SDC/DSC模块来发送和接收同步器信号,解决了航姿系统中轴角转换的数字化问题,使检测仪的体积大大减小的同时提高了航姿系统检测精度;提出了小波去噪抗干扰技术,滤除了交流电源产生的噪声;应用改进的广义似然比法和Wald序惯概率比法(SPRT)实现了对系统软故障的检测;本检查仪精度高,操作简单,使用方便,满足机务维护的要求。
The function, operating principle and whole design scheme of the synthetic detector of navigation attitude system are presented. Firstly, the delivery and reception of data are obtained by use of SDC/DSC module, Resolved the problem of numeralization for the convert of stalk Cape , moreover the volume the synthetic detector is consumed greatly, at the same time made the accuracy of the system examination be increased. Secondly, the noise which is generated by AC supply is filtered by wavelet de-noislng technique. Moreover, the soft malfunctions of system are diagnosed by advanced techniques of fault diagnosis. The detection accuracy is high, operation is simple, usage is Convenient. it satisfy the request of Maintenance.
出处
《计算机测量与控制》
CSCD
2006年第5期698-700,共3页
Computer Measurement &Control
