CAJ | 학술논문

采用功率谱反演法与叠加低频谐波方式数值模拟静态湍流相位屏, 并根据湍流冻结理论仿真了动态湍流相位屏. 采用液晶空间光调制器(LC-SLM)在实验室内搭建了大气湍流信道仿真平台,进行了Kolmogorov湍流模型下,不同湍流强度的激光大气传输模拟研究,对比分析了实验结果,与理论较为符合. 同时实验研究了不同模拟湍流强度下激光通信误码率的响应关系, 这对实验室内评估实际激光通信系统的性能具有重要应用价值.
채용공솔보반연법여첩가저빈해파방식수치모의정태단류상위병, 병근거단류동결이론방진료동태단류상위병. 채용액정공간광조제기(LC-SLM)재실험실내탑건료대기단류신도방진평태,진행료Kolmogorov단류모형하,불동단류강도적격광대기전수모의연구,대비분석료실험결과,여이론교위부합. 동시실험연구료불동모의단류강도하격광통신오마솔적향응관계, 저대실험실내평고실제격광통신계통적성능구유중요응용개치.
Numerical simulations for static turbulent phase screens are presented with power spectrum method (FFT). Also simulation methods for dynamic phase screen were presented by using traditional turbulence frozen method. An indoor atmospheric turbulence simulator was designed based on LC-SLM, and a simulation test bed was built. In the Kolmogorov turbulence laser propagation characteristic in different turbulent atmosphere was simulated. The experiments results were analyzed and showed the agreement with the theory. The response of bit error to intensity of turbulence were investigated, it is meaningful for value the laser communication system indoor test.