The estimate of QPEs is roughly obtained by use of the Discrete Polynomial-Phase Transform(DPT), then it is refined by a RELAX-based parametric estimation method.

相位误差的粗估计采用离散多项式相位变换（DPT）方法，而误差精估计则基于RELAX类算法。

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The estimate of QPEs is roughly obtained by use of the Discrete Polynomial-Phase Transform(DPT), then it is refined by a RELAX-based parametric estimation method.

相位误差的粗估计采用离散多项式相位变换（DPT）方法，而误差精估计则基于RELAX类算法。

youdao