液晶光学相控技术在卫星通信多接入中的应用

在空间激光通信、组网过程中, 为了能够实现一颗卫星终端对多颗卫星终端的物理光束接入, 从而使得一颗卫星能与多颗卫星实现数据分发、路由、交换等组网功能, 对卫星激光通信捕跟过程中存在的多终端物理接入方法进行了研究。在基于液晶光学相控阵多波束生成能力和多波束赋形的理论基础上, 设计了一种新型的多终端接入方法。该方法的核心是利用液晶光学相控阵的多波束生成与控制能力实现对多个终端的接入。对光束在远场光斑的位置信息以及接入过程中的衍射效率和能量损耗情况进行仿真来验证该方案是否满足空间激光通信终端接入要求。仿真结果发现接入过程中的衍射效率大于80%, 能量损耗小于1 dB, 表明该方案有效可行。

Abstract

In the process of space laser communication and networking, in order to achieve a satellite terminal for the physical beam access to a plurality of satellite terminals, thereby enabling a satellite to achieve data distribution, routing, switching and other networking functions with multiple satellites, the multi-user physical access method in the process of satellite laser communication acquisition and tracking was studied. Based on the theory of multi-beam forming ability and multi-beam forming of liquid crystal optical phased array, a new type of multi-user access method was designed. The core of this method was to realize the access to multiple terminals by using multi-beam generation and control ability of liquid crystal optical phased array. The position information of the beam in the far field and the diffraction efficiency and energy loss during the process were simulated to verify whether the scheme met the requirements of the space laser communication terminal. The simulation results show that the diffraction efficiency of the access process is greater than 80%, energy loss less than 1 dB, the results display that the proposed method is effective and feasible.

参考文献

[1] 付强, 姜会林, 王晓曼, 等. 空间激光通信研究现状及发展趋势[J]. 中国光学, 2012, 5(2): 116-125.

Fu Qiang, Jiang Huilin, Wang Xiaoman, et al. Research status and development trend of space laser communication [J]. Chinese Optics, 2012, 5(2): 116-125. (in Chinese)

[2] 吴从均, 颜昌翔, 高志良. 空间激光通信发展概述[J]. 中国光学, 2013, 6(5): 670-680.

Wu Congjun, Yan Changxiang, Gao Zhiliang. Overview of space laser communications[J]. Chinese Optics, 2013, 6(5): 670-680. (in Chinese)

[3] 金光, 李艳杰, 钟兴, 等. 空间成像与激光通信共口径光学系统设计[J]. 光学精密工程, 2014, 22(8): 2067-2074.

Jin Guang, Li Yanjie, Zhong Xing, et al. Design of co-aperture optical system for space imaging and laser communication[J]. Optics and Precision Engineering, 2014, 22(8): 2067-2074. (in Chinese)

[4] 姜会林, 江伦, 宋延嵩, 等. 一点对多点同时空间激光通信光学跟瞄技术研究[J]. 中国激光, 2015, 42(4): 0405008.

Jiang Huilin, Jiang Lun, Song Yansong, et al. Research of optical and APT technology in one-point to multi-point simultaneous space laser communication system[J]. Chinese Journal of Lasers, 2015, 42(4): 0405008. (in Chinese)

[5] 陈黎, 杜鹏, 颜宏, 等. 光学相控阵在光束偏转中的应用分析及进展[J]. 激光与红外, 2013, 43(4): 351-355.

Chen Li, Du Peng, Yan Hong, et al. Progress and applied analysis of the optical phased array in beam steering [J]. Laser & Infrared, 2013, 43(4): 351-355. (in Chinese)

[6] Stockley J, Serati S. Multi-access laser terminal using liquid crystal beam steering[C]//2005 IEEE Aerospace Conference,2005: 1972-1977.

[7] Serati S, Masterson H, Linnenberger A. Beam combining using a phased array of phased arrays (PAPA)[C]//Aerospace Conference, 2004, 3: 1729.

[8] Dang A. Simultaneous acquisition and track scheme with multiple terminals based on subspace method for optical satellite networks[J]. IEEE Transactions on Aerospace and Electronic Systems, 2010, 46(1): 263-277.

[9] 孔令讲, 朱颖, 宋艳, 等. 基于非周期闪耀光栅的液晶相控阵波控方法研究[J]. 光学学报, 2011, 31(1): 0123001.

Kong Lingjiang, Zhu Ying, Song Yan, et al. A beam steering approach of liquid crystal phased array based on non-periodic blazed grating[J]. Acta Optica Sinica, 2011, 31(1): 0123001. (in Chinese)

[10] 赵彬, 赵长明, 杨苏辉, 等. 利用相位闪耀光栅的光学相控阵扫描性能分析[J]. 红外与激光工程, 2012, 41(2): 341-346.

Zhao Bin, Zhao Changming, Yang Suhui, et al. Performances analysis of optical phased array scanning based on blazed phase grating[J]. Infrared and Laser Engineering, 2012, 41(2): 341-346. (in Chinese)

[11] Perry M J. Using liquid crystal spatial light modulators for closed loop tracking and beam steering with phase holograpy[D]. Ohio: Air Force Institute of Techonlogy, 2005.

[12] 汪相如, 谭庆贵, 黄子强, 等. 液晶光学相控阵的双波束成形和2维扫描技术[J]. 激光技术, 2013, 37(5): 631-635.

Wang Xiangru, Tan Qinggui, Huang Ziqiang, et al. Dual beam formation and 2-D scan technique of liquid crystal optical phased array[J]. Laser Technology, 2013, 37(5): 631-635. (in Chinese)

[13] 朱瑞飞, 贾宏光, 王超, 等. 应用参数化对数模型增强图像细节及对比度[J]. 光学精密工程, 2014, 22(4): 1064-1070.

Zhu Ruifei, Jia Hongguang, Wang Chao, et al. Enhancement of image detail and contrast by parameterized logarithmic framework[J]. Optics and Precision Engineering, 2014, 22(4): 1064-1070. (in Chinese)

[14] Tang Z, Wang X, Huang Z, et al. Sub-aperture coherence method to realize ultra-high resolution laser beam deflection[J]. Optics Communications, 2015, 335: 1-6.

[15] Wu L, Wang X, Xiong C, et al. Steering performance of oblique arriving beam propagating through liquid crystal optical phased array[J]. Optical Engineering, 2016, 55(11): 116115.

张天一, 汪相如, 黄子强, 吴亮, 许剑华, 谭庆贵. 液晶光学相控技术在卫星通信多接入中的应用[J]. 红外与激光工程, 2017, 46(11): 1122004. Zhang Tianyi, Wang Xiangru, Huang Ziqiang, Wu Liang, Xu Jianhua, Tan Qinggui. Application of liquid crystal optical phasing technique in multi - access of satellite communication[J]. Infrared and Laser Engineering, 2017, 46(11): 1122004.

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