本文選題：激光通信組網　切入點：光束控制　出處：《光學精密工程》2014年12期 　論文類型：期刊論文

【摘要】：介紹了用于一對多激光通信組網控制系統(tǒng)的光斑跟蹤閉環(huán)系統(tǒng)。在伺服轉臺位置閉環(huán)的基礎上,討論以CCD相機為敏感器,以二維伺服轉臺為執(zhí)行器的光閉環(huán)系統(tǒng)。介紹了跟蹤系統(tǒng)的數學原理,研究了光閉環(huán)各環(huán)節(jié)的靜態(tài)動態(tài)誤差及開環(huán)閉環(huán)響應。在理論計算和數學仿真后,編寫了閉環(huán)跟蹤程序。采用經典PID控制與前饋相結合的控制算法,進一步提高了伺服帶寬,保證了系統(tǒng)的穩(wěn)定性。對星間激光通信的光斑位置進行了跟蹤試驗,結果顯示跟蹤誤差為3σ≈136μrad,基本符合空間激光通信組網系統(tǒng)激光束的指向要求。得到的結果驗證了控制策略的可行性,為多光束伺服打下了基礎。
[Abstract]:The spot tracking closed-loop system for one-to-many laser communication network control system is introduced. Based on the closed loop of servo turntable position, the CCD camera is used as the sensor. This paper introduces the mathematical principle of the tracking system, studies the static dynamic error of each link of the optical closed loop and the open-loop closed-loop response. After theoretical calculation and mathematical simulation, the optical closed-loop system is used as the actuator. The closed-loop tracking program is written. The classical PID control combined with feedforward control algorithm is used to further improve the servo bandwidth and ensure the stability of the system. The tracking experiment of spot position of intersatellite laser communication is carried out. The results show that the tracking error is 3 蟽 鈮，

本文編號：1623447