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Research on the Frequency Spectrum Management Method of VLF Based on the Propagation Prediction Technology
Abstract:
VLF communication is one of the most effective means to command underwater platform. The spectrum resource of vlf communication is limited, so it is very important for enhance the reliability of vlf communication to strengthen the vlf communication spectrum management. It makes use of the well prediction of the vlf frequency band, to establish the signal field predicting model and atmospheric noise statistics predicting model respectively, predicts the field of signal and noise level, and then calculated the signal-to-noise ratio (SNR). According to the SNR distribution we can determine the relationship of the optimal communication frequency, time and location of receiver. So the efficiency of spectrum management for vlf communication can be enhanced.
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2180-2183
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Online since:
March 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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