K均值算法下逆向调制激光通信信号作用距离

Distance of Reverse Modulation Laser Communication Signal under K-means Algorithm

摘要:

【目的】激光通信信号作用距离在激光通信系统中起到决定性作用,其主要受信号传输中猫眼效应引起的衰减性和干扰性影响,导致逆向调制激光通信质量下降,为此研究基于K均值算法的逆向调制激光通信信号作用距离控制方法。【方法】分解逆向调制激光系统组成结构,其主要分为主动端、逆向端两个部分,主动端发射通信激光,逆向端对接收到的激光调制。在调制后通过逆向单元将调制通信激光原路返回至主动端,当接收到经逆向调制后的通信激光后主动端完成解调,实现激光系统的逆向调制通信,从而确定激光信号衰减与距离关系。以信号衰减与距离关系为基础采用K均值算法聚类初始衰减信号,确定激光信号衰减密度分布情况,结合光学追踪矩阵设定控制矩阵以猫眼抑制效应并控制衰减信号,保证逆向调制激光通信作业距离。【结果】实验结果表明,所研究方法可以实现不同类型通信模式中的光通信信号聚类,且能够给保证激光信号的传输强度和距离。【结论】所研究的K均值算法在逆向调制激光通信信号作用距离方法中表现出了优秀的性能,该方法不仅能够实现不同类型通信模式中光通信信号的聚类,还能够保证激光信号的传输强度和距离,为激光通信技术的发展提供了有力的技术支持,实际应用效果好。

Abstract:

【Objective】 The effective distance of laser communication signals plays a decisive role in laser communication systems, which is mainly affected by the attenuation and interference caused by the cat"s eye effect in signal transmission, leading to a decrease in the quality of reverse modulation laser communication. Therefore, a control method for the effective distance of reverse modulation laser communication signals based on the K-means algorithm is studied. 【Methods】 Decompose the composition structure of the reverse modulation laser system, which is mainly divided into two parts: the active end and the reverse end. The active end emits communication laser, and the reverse end modulates the received laser. After modulation, the modulated communication laser is returned to the active end through a reverse unit. When the reverse modulated communication laser is received, the active end completes demodulation to achieve reverse modulation communication of the laser system, thereby determining the relationship between laser signal attenuation and distance. Based on the relationship between signal attenuation and distance, the K-means algorithm is used to cluster the initial attenuation signals, determine the distribution of laser signal attenuation density, and set the control matrix in combination with the optical tracking matrix to suppress the cat eye effect and control the attenuation signal, ensuring the reverse modulation of laser communication operation distance. 【Results】 The experimental results indicate that the proposed method can achieve clustering of optical communication signals in different types of communication modes, and can ensure the transmission intensity and distance of laser signals. 【Conclusion】 The K-means algorithm studied has shown excellent performance in the reverse modulation laser communication signal action distance method. This method can not only achieve clustering of optical communication signals in different types of communication modes, but also ensure the transmission intensity and distance of laser signals, providing strong technical support for the development of laser communication technology. The practical application effect is good.