该方法不涉及运动估计，具有较低的计算负荷和时间延迟，所产生的视频流是完全嵌入的。
The method does not involve motion estimation, and has lower computational complexity and coding latency, and can make full-embedded video streams.
当采用相关法估计时间延迟时，多径时延的分辨率受到相关函数主(？)宽度的限制。
Multipath time delay estimation is constrained by the width of the signal correlation function when using correlation method.
研究了基于相位谱的时间延迟估计原理及其算法。
A time delay estimation algorithm and theory based on phase function were studied.
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