The DPLFM has a high speed of tracking signal frequency and high precision, and also can predict and compensate the change of the input signal frequency.

该电路频率跟踪速度快，精度高，并能对输入信号的频率变化进行预测和补偿。

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The rotation angle approximately periodically changes the sub-beam signal amplitude and should be strictly controlled in the assembly to maximize the tracking signal amplitude.

计算结果表明：旋转误差使三光束法循迹信号的幅值近似呈周期性变化，它是在生产过程中需要严格控制的参数以保证循迹信号的幅值最大化；

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Getting a DNT signal does not oblige anyone to stop tracking, although some companies have promised to do so.

获得 DNT 信号并不意味着任何人都必须停止跟踪，尽管一些公司已经承诺会这样做。

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They began to search actively for the signal, eventually achieving perfect scores in tracking and identifying the correct location of the invisible light source.

BBC: Lab rats 'acquire sixth sense'

The agency reports that its tracking station in Perth, Australia, picked up a signal from the Phobos-Grunt probe.

BBC: Signal picked up from Russia's stranded Mars probe

The European Space Agency reported that its tracking station near Perth, Australia, received a signal from the probe this morning.

FORBES: ESA Tracked Signal From Russian Mars Probe