激光大气湍流传输的相干性退化衰减估算系统研究

Research on coherence degradation decay estimation system for laser atmospheric turbulent transmission

针对当前激光大气湍流传输的相干性退化衰减估算系统存在的估算结果与实际结果误差较大问题,提出基于高斯-谢尔光束的激光大气湍流传输的相干性退化衰减估算系统设计方法,通过VC和MATLAB语言对激光大气湍流传输的相干性退化衰减估算系统进行开发,完成系统总体框架的设计,然后通过对激光大气湍流传输的相干性退化衰减过程进行分析,并分析了高斯-谢尔光束在大气湍流中传输的性能,确定激光大气湍流相干性退化衰减模型,根据该模型完成衰减估计,实现激光大气湍流传输的相干性退化衰减估算系统。实验结果表明,本文系统能够对激光大气湍流传输的相干性退化衰减进行估算,且估算的结果与实际结果相差较小,估算的准确度较高。

Aiming at the problem of the coherence degradation attenuation estimation system and the actual result error of the coherent degeneration attenuation estimation system of laser atmospheric turbulence transmission,a design method of coherence degradation attenuation estimation system based on Gaussian-Schell light beam is proposed.,Through the VC and MATLAB language on the laser atmospheric turbulence transmission coherence degradation attenuation estimation system development to ensure that the system＇s aesthetics and practicality. On the basis of this,the coherence degradation decay process of laser atmospheric turbulence transmission and the performance of Gaussian-Searle beam in atmospheric turbulence are analyzed. The model of laser atmospheric turbulence coherence degradation decay is determined according to the model Attenuation estimation,and realization of coherent degeneration attenuation estimation system for laser atmospheric turbulence transmission. The experimental results show that the proposed system can estimate the coherence degradation attenuation of laser atmospheric turbulence transmission,and the difference between the estimated results and the actual results is small and the accuracy of the estimation is high.