The results indicate that ESPRIT algorithm based on vector sensor can obtain higher resolution frequency estimation than that based on pressure hydrophone.

结果表明基于矢量传感器的算法比基于声压传感器的算法具有更高的频率估计精确度。

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If the space shift invariance is replaced by the time shift invariance, the high resolution frequency estimation can be obtained using a single vector sensor.

如果将空间的位移变成时间的延迟，单个矢量传感器可以实现高分辨率的频率估计。

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Furthermore, by using the principle of ultrahigh resolution frequency measurement, the ultrahigh resolution frequency measurement can be achieved with simple circuits.

利用超高分辨率测频原理，以简单廉价的电路完成对频率信号的超高分辨率测量。

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The waterproof functionality doesn't come at the expense of the sound, either, with the Aquaris sporting high-definition sound with 48 channels with high frequency resolution and a 12 kHz frequency range.

ENGADGET: Siemens' waterproof Aquaris hearing aid means rain doesn't need to stop play, we go ears on

High resolution is achieved by measuring motion rather than radio frequency signals as wifi does, and is based on where and how the person moves through an environment over time.

BBC: Technology that works behind closed doors