The vibrating signals collected from pump bearings by a velocity sensor were analyzed with short time Fourier transform(STFT), wavelet transform(WT) and wavelet packet transform(WPT) in the paper.

对磁电式速度传感器采集的水泵轴承振动信号分别进行了短时傅立叶变换、小波变换、小波包变换。

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A packet forwarding model is designed for wireless sensor networks, and the nodes Pareto optimal utility participating in packet forwarding is analyzed.

为传感器网络建立了包转发模型，分析了节点参与包转发会话所获得的帕累托最优效用。

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This paper USES the viewpoints and methods in game theory to solve the packet forwarding problem in wireless sensor networks.

运用博弈论的观点和方法来解决传感器网络中的包转发问题。

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In recent weeks Dr Smith and Dr Sample, working with Scott Southwood, another researcher at the University of Washington, have built a weather sensor that measures temperature and light levels and sends a packet of data every five seconds by radio.

ECONOMIST: Monitor