There are two kinds of errors, cold tracking error and post-hot-tracking error.

文中着重讨论了本振频率冷跟踪误差问题。

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Visual tracking is a hot spot currently in the domain of computer vision.

视觉跟踪是当前计算机视觉领域中的研究热点。

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The former determines the frequency range which should be revised by the hot tracking circuit, while the later is the final frequency error of the local oscillator.

同时也提出了热跟踪后本振频率跟踪误差项。分析前者，可以决定热跟踪电路应予修正的频率范围，而后者则是跟踪本振最终的误差。

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Obama's policies appear to be tracking the overall public sentiment on what has historically been a hot-button political issue.

CNN: Obama likely to get earful on Cuba at Americas summit

Nope, instead your phone has been tracking information about its location in relation to wi-fi hot spots and cellular towers so it can figure out where it is.

FORBES: We Don't Want To Know Where You Are, Apple Says