The disadvantage of high precision frequency accuracy measurement method available is that an expensive high-resolution time interval counter is needed.

常用高精度校频算法的不足在于需要昂贵的高分辨时间间隔计数器。

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Abstract: The high accuracy time interval measurement is a key technique to pulsed laser ranging. Therefore, a new high precision time interval measurement method is proposed.

摘要：高精度时间间隔测量对脉冲激光测距系统具有重要意义，为此提出了一种新的高精度时间间隔测量方法。

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