DPA structure and working principle is described. Its working circuit is analyzed and its fault self-diagnosis method and procedure is introduced here.
主要阐述双驻车辅助系统（DPA）的结构及工作原理，对其电路工作情况进行了分析，介绍了该系统进行故障自诊断的方法及步骤。
This paper introduces the working principle of self-diagnosis device for telecontrol channel, describes its features and specific functions.
论述了自适应滤波方法用于传感器性能及故障的在线自诊断技术 。
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