Researching | Pseudo-random code selection for inter-satellite laser ranging and data communication in the Taiji program

Chinese Optics, Volume. 18, Issue 3, 547(2025)

Pseudo-random code selection for inter-satellite laser ranging and data communication in the Taiji program

Pei-quan CHEN^1,2,3,4, Ru-jie DENG^1,2, Yi-bin ZHANG^1,2, Pan LI², Ke-qi QI², He-shan LIU², and Zi-ren LUO^1,2,4、*

Author Affiliations

¹School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China

²National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

³National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China

⁴University of Chinese Academy of Sciences, Beijing 100049, China

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Figures & Tables(11)

Fig. 1. Block diagram of an interferometric arm in Taiji program

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Fig. 2. Principle diagram of DLL

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Fig. 3. Principle diagram of Fibonacci LFSR

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Fig. 4. Principle diagram of Galois LFSR

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Fig. 5. Principle diagram of C/A code for GPS

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Fig. 6. Comparison of hardware consumption

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Fig. 7. Results of auto-correlation

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Fig. 8. Results of cross-correlation

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Fig. 9. Schematic diagram of intersymbol interference

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Fig. 10. Ranging discriminator function

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Table 1. Correlation value and rms
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Table 1. Correlation value and rms
码型自相关值(dB) 自相关rms 互相关值(dB) 互相关rms
Gold −60.20~−23.94 0.323 −60.20~−23.94 0.312
Weil −60.27~−24.01 0.303 −60.27~−24.01 0.307

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Pei-quan CHEN, Ru-jie DENG, Yi-bin ZHANG, Pan LI, Ke-qi QI, He-shan LIU, Zi-ren LUO. Pseudo-random code selection for inter-satellite laser ranging and data communication in the Taiji program[J]. Chinese Optics, 2025, 18(3): 547

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Paper Information

Category: Special Column on Space-based Gravitational Wave Detection

Received: Feb. 6, 2024

Accepted: Apr. 15, 2024

Published Online: Jun. 16, 2025

The Author Email:

DOI:10.37188/CO.2024-0033

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