Assuring the deployed precision, DDCP is used to not only consider the environmental influence for uncertainties of the deployed positions of sensor nodes and communication signal attenuation, but also create the model of signal coverage to attain the optimal deployed locations and the number of sensor nodes.
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The signal will have attenuation and disturbance due to environmental factors in the process of VLF radio wave propagation, which will impact the reliability of submarine communication.
甚低频(VLF)电波传播过程中因环境因素影响会使信号产生衰减与扰动，导致潜艇收信可靠性下降。
The atmosphere attenuation to 650 nm light and the dot whipping caused by air turbulence were analyzed. The signal transmission waveform and communication eye diagram of the system were recorded.
分析了大气对光信号的衰减以及大气湍流造成的光斑抖动对通信的影响，记录了系统的信号传输波形和通信眼图。
Finally the simulating result is presented, which validates white noise characteristic of the OFDM signal and the characteristic of anti-attenuation of frequency-selected of OFDM communication system.
给出了该方案的O FDM系统仿真结果，验证了O FDM信号的白噪声特性和O FDM通信系统较强的抗频率选择性衰落特性。
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