Solution Method of Line-of-sight Attitude in One-point to Multi-point Simultaneous Laser Communication System

WANG Lihui; ZHANG Lizhong; MENG Lixin; BAI Yangyang

doi:10.11999/JEIT221533

Volume 45 Issue 8

Aug. 2023

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Article Navigation > Journal of Electronics & Information Technology > 2023 > 45(8): 2919-2926

WANG Lihui, ZHANG Lizhong, MENG Lixin, BAI Yangyang. Solution Method of Line-of-sight Attitude in One-point to Multi-point Simultaneous Laser Communication System[J]. Journal of Electronics & Information Technology, 2023, 45(8): 2919-2926. doi: 10.11999/JEIT221533

Citation:

WANG Lihui, ZHANG Lizhong, MENG Lixin, BAI Yangyang. Solution Method of Line-of-sight Attitude in One-point to Multi-point Simultaneous Laser Communication System[J]. Journal of Electronics & Information Technology, 2023, 45(8): 2919-2926. doi: 10.11999/JEIT221533

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Solution Method of Line-of-sight Attitude in One-point to Multi-point Simultaneous Laser Communication System

doi: 10.11999/JEIT221533

WANG Lihui^{1, 2, 3},
ZHANG Lizhong^{1, 3
,
,},
MENG Lixin^{1, 3},
BAI Yangyang^{1, 3}

1.
School of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022, China
2.
College of Engineering, Inner Mongolia University for Nationalities, Tongliao 028000, China
3.
Fundamental Science on Space-Ground Laser Communication Technology Laboratory, Changchun University of Science and Technology, Changchun 130022, China

Funds: Ye Qisun Science Foundation of the Joint Fund of National Natural Science Foundation of China(U2141231), Science and Technology Research Project of Education Department of Jilin Province (JJKH20210836KJ)

Received Date: 2022-12-12
Rev Recd Date: 2023-03-02

Available Online: 2023-03-06

Publish Date: 2023-08-21

Abstract

Abstract

Considering the technical requirements of one-point to multi-point simultaneous laser communication for miniaturization, light weight and networking of optical transceiver, the multiple gyroscopes on the optical transceiver are simplified, and a scheme of realizing simultaneous stability of multiple optical line-of-sights by using a single gyroscope is proposed. In order to calculate the attitude of multiple optical line-of-sights, the coordinate system of each pointing mirror is redefined according to the Euler theorem, and the mathematical model of multiple optical line-of-sights attitude based on rotating quaternion is established. In order to calculate the parameters of the mathematical model, the fourth-order Runge-Kutta algorithm is given, and the three-sample algorithm is optimized. Finally, the numerical solution results are compared with the true values of three typical cone motions, and the solution error curves of different pointing mirror line-of-sight postures are obtained. The results show that the fourth-order Runge-Kutta method is superior to 10^-4 μrad in the simulation time of 60 s, which verifies the effectiveness of the model. After the optimization of the three-sample algorithm, the accuracy of the joint solution of three typical conical motions is improved by 3 orders of magnitude, 3 orders of magnitude and 1 order of magnitude respectively, and the purpose of accuracy optimization is achieved. This method provides a theoretical basis for the application of strapdown stabilization technology to laser communication networking.
- Laser communication,
- One-point to multi-point,
- Rotating quaternion,
- Multiple optical line-of-sights strapdown stability

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References(13)

References

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