By observing the periods of the target length variant, the frequency of nutation is deduced.

通过观测一维像序列的长度变化周期，提取目标的章动频率；

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By observing the periods of the target length variant, the frequency of nutation is deduced.

通过观测一维像序列的长度变化周期，提取目标的章动频率；

youdao