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多道数字磁记录器,在若干磁道上同时记录编码数据,所用的磁道数等于编码位数。例如八位编码的数字数据,需同时占用八路磁道。由于种种原因,同时记录在八路磁道上的码子,重放时不会在同一时刻出现。这种现象称之为“路间脉冲时间位移,”简称“时间位移”〔有时也称作“路间时间位移误差”(ITDE)〕。
Multi-channel digital magnetic recorder, in a number of tracks at the same time record encoded data, the number of tracks used is equal to the number of bits encoded. For example, eight-digit encoded digital data, need to occupy eight tracks at the same time. Due to various reasons, the code recorded on the eight tracks at the same time will not appear at the same time during playback. This phenomenon is referred to as “time-of-flight pulse time shift” or “time shift” for short [sometimes referred to as “ITDE”.