Integrated Technology of Laser Spread Spectrum Communication and Ranging for Deep Space (Invited)

Chaoyang Li; Jianfeng Sun; Zhiyong Lu; Yu Zhou; Longkun Zhang; Yuxin Jiang; Lingling Xu; Hanrui Pan; Honghui Jia; Haoming Yuan; Weibiao Chen; Hui He

doi:10.3788/LOP240428

Laser & Optoelectronics Progress, Volume. 61, Issue 7, 0706013(2024)

Integrated Technology of Laser Spread Spectrum Communication and Ranging for Deep Space (Invited)

Chaoyang Li^1,3, Jianfeng Sun^2,4,5、*, Zhiyong Lu³, Yu Zhou², Longkun Zhang³, Yuxin Jiang³, Lingling Xu³, Hanrui Pan³, Honghui Jia³, Haoming Yuan³, Weibiao Chen^2,3, and Hui He²

Author Affiliations

¹Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China

²Space Laser Engineering Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

³Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

⁴Shanghai Satellite Network Research Institute Company Limited, Shanghai 200120, China

⁵Shanghai Key Laboratory of Satellite Network, Shanghai 200120, China

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Figures & Tables(11)

Fig. 1. Laser spread spectrum communication and ranging integration system

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Fig. 2. Relationship between $(r_{E} - r_{L}) / (r_{E} + r_{L})$ and pseudo code phase difference $n T_{S}$ and linear fitting

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Fig. 3. Experimental setup

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Fig. 4. Curve $(r_{E} - r_{L}) / (r_{E} + r_{L})$ corresponding to the target echo data

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Fig. 5. Measurement results of relative moving distance of static target. (a) Mean of ranging; (b) deviation of ranging; (c) standard deviation of ranging; (d) ranging for a single step

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Fig. 6. Three groups of measurements of relative moving distance of static target. (a) Three groups of measurements; (b) deviation after removing the influence

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Fig. 7. Measurement results of relative moving distance of dynamic target. (a) Ranging result; (b) deviation between the measured value and the actual moving distance

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Fig. 8. Demodulated data for two targets. (a) Static target; (b) dynamic target

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Fig. 9. Relationship between ranging precision and received optical power

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Table 1. Simulation parameter

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Table 1. Simulation parameter

Parameter	Specification
Bandwidth of the low pass filter /MHz	250
PN code rate /（Mbit/s）	250
Communication rate /（bit/s）	$10^{6} / 6.24$
PN code length /（bit/s）	1560
Phase modulation depth coefficient	0.5
Frequency-shifts of light by AOM /MHz	400
Sampling rate of DSO /（GSa/s）	2.5

Table 2. Result for communication
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Table 2. Result for communication
Target type Number of tests Number of error data
Static target 1425 0
Dynamic target 1425 0

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Chaoyang Li, Jianfeng Sun, Zhiyong Lu, Yu Zhou, Longkun Zhang, Yuxin Jiang, Lingling Xu, Hanrui Pan, Honghui Jia, Haoming Yuan, Weibiao Chen, Hui He. Integrated Technology of Laser Spread Spectrum Communication and Ranging for Deep Space (Invited)[J]. Laser & Optoelectronics Progress, 2024, 61(7): 0706013

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