基于激光通信的视频信号传输速度预测方法

为了提高激光通信系统视频信号传输速度自动预测能力,提出一种基于小波分析和高阶谱特征提取的激光通信系统视频信号传输速度自动预测方法。采用一阶近似分布源视频检测方法进行激光通信系统视频传输信号的降噪处理,对降噪输出的视频传输信号进行特征分解和多维测度信息配准,结合小波多层重构方法进行激光通信视频信号的重组,提取视频传输信号的相干分布源特征,根据提取的激光通信视频信号的相干分布源特征进行自动匹配,实现对激光通信系统视频信号传输速度的自动预测。仿真结果表明,采用该方法进行激光通信系统视频信号传输速度自动预测的准确性较好,对激光通信视频信号的分辨能力较好,提高了激光通信系统的视频信号传输速度的预测性能。

Speed prediction of video signal transmission based on laser communication

In order to improve automatic prediction ability of video signal transmission speed in laser communication system,an automatic prediction method for video signal transmission speed in laser communication system based on wavelet analysis and higher-order spectral feature extraction is proposed.The first order approximate distributed source video detection method is used to reduce the noise of video transmission signal in laser communication system.The video transmission signal output from the noise reduction is decomposed and the multidimensional measuring information is registered.Combining the wavelet multi-layer reconstruction method,the video signal of laser communication is reconstructed,and the coherent distributed source feature of video transmission signal is extracted.According to the extracted coherent distribution source feature of laser communication video signal,the coherent distribution source feature of extracted video signal is automatically matched.The speed of video signal transmission in laser communication system is predicted automatically.The simulation results show that the proposed method has good accuracy for automatic prediction of video signal transmission speed in laser communication system,and has good resolution ability for video signal in laser communication system.The prediction performance of video signal transmission speed in laser communication system is improved.