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提出了一种频差估计的新算法，该算法结合观测序列的周期图和自相关函数进行频率估值。
A simple algorithm for frequency offset estimation is proposed, which estimates the frequency offset with the periodogram and the correlation function of the observation samples.
论文在此法的基础上，提出了一种基于时域自相关平方函数的基音周期估计方法。
So the paper brings forward a method of pitch estimation in time-domain based on correlated square function.
本文提出一种新的非周期幅相码，这种码具有多种幅度和相位，其自相关函数副瓣电平比较低。
This paper explains a new nonperiodic Amplitude-Phase Code, which has multi-level quantized amplitude and low auto-correlation sidelobes.
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