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Satellite telemetry of meteorological satellite plays an important role for satellite safety management. In existing system, threshold value is used to monitor the abnormity because of large volumes of data which is collected every three seconds. However, the abnormal data in the threshold range cannot be detected timely. Based on this, in the paper we introduce Principle Component Analysis (PCA)...
The resistive current of the arrester is an important indicator of its status, the conventional arrester resistive current measurement method have potential safety hazard, this paper presents a wireless resistive current measurement method based on GPS, with simple field wiring, suitable for online monitoring and other features. The method took advantage of PPS pulses of GPS and wireless communication...
In recent years, we have seen tremendous growth in the applications of wireless sensor networks (WSN) operating in unlicensed spectrum bands. However, there is evidence that existing unlicensed spectrum is becoming overcrowded. On the other hand, with recent advances in Cognitive Radio (CR) technology, it is possible to apply the Dynamic Spectrum Access (DSA) model in WSN to get access to less congested...
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