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这份简要材料是在模拟回放仪上进行时间—深度剖面变换的初步设想,建议大家进一步研究、实践。先谈谈在回放仪上如何实现任意动校正曲线。目前动校正系统可实现下降曲线,校正结果是活动磁头上抬、时间超前。任意校正曲线除了有下降部分外可能还有上升部分。假若我们解决了上升曲线,有上有下则任意校正曲线也就可以实现了。在回放仪上说,上升曲线就是意味着活动磁头下降时间滞后,正好和下降曲线相反。为此只要把电
This brief material is a preliminary assumption of time-depth profile transformation on an analog playback device, and it is recommended that you further study and practice. Let’s talk about how to implement any moving calibration curve on the playback device. Currently moving correction system can achieve a decline curve, the correction result is active head lift, time ahead. Any correction curve in addition to the decline in the part may have ascending parts. If we solve the ascending curve, any correction curve can be achieved if there is any. In the playback device, said the rising curve means that the active head drop time lag, just the opposite of the descent curve. To this end as long as the electricity