一概述特征分析技术来源于保密信通系统以及相控阵雷达反射信号编码技术。它事先将正常线路中的每一段或每一节点上在一定时间间隔内的逻辑状态变化描绘成四位数字(16bit)组成的信号特征码(非标准十六进制码),标注在线路上,就象模拟电路上标注的电压值或波形一样。用这种技术制成的特征分析仪给现场故障检测带来了极大的方便。 An overview of feature analysis techniques from the confidential communications system and phased array radar reflection signal encoding technology. It depicts in advance the logic state changes of each segment or each node in a normal line within a certain time interval as a four-digit (16bit) signal signature (non-standard hexadecimal code) marked on the line, Just like the voltage value or waveform marked on an analog circuit. The characteristic analyzer made with this kind of technology has brought the great convenience to on-the-spot fault detection.