Portable system integrated with time comparison, ranging, and communication

Qiongqiong Zhang; Chengkai Pang; Yurong Wang; Guangyue Shen; Lei Yang; Zhaohui Li; Haiyan Huang; Guang Wu

doi:10.3788/COL202220.100601

Journals >Chinese Optics Letters >Volume 20 >Issue 10 >Page 100601 > Article

Chinese Optics Letters
Vol. 20, Issue 10, 100601 (2022)

Portable system integrated with time comparison, ranging, and communication

Qiongqiong Zhang¹, Chengkai Pang^1、2, Yurong Wang^1、2, Guangyue Shen^1、2, Lei Yang¹, Zhaohui Li¹, Haiyan Huang¹, and Guang Wu^{1、2、3、*}

Author Affiliations

¹State Key Laboratory of Precision Spectroscopy (East China Normal University), Shanghai 200241, China

²Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing 401120, China

³Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

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DOI: 10.3788/COL202220.100601 Cite this Article Set citation alerts

Qiongqiong Zhang, Chengkai Pang, Yurong Wang, Guangyue Shen, Lei Yang, Zhaohui Li, Haiyan Huang, Guang Wu. Portable system integrated with time comparison, ranging, and communication[J]. Chinese Optics Letters, 2022, 20(10): 100601 Copy Citation Text

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Schematic of asynchronous two-way optical link. SPD, single-photon detector; LD, laser diode; SF, start of frame; EF, end of frame; FPGA, field programmable gate array.

Fig. 1. Schematic of asynchronous two-way optical link. SPD, single-photon detector; LD, laser diode; SF, start of frame; EF, end of frame; FPGA, field programmable gate array.

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Fig. 2. (a) Schematic of m-sequence generator. (b) Flow chart of data decoding process.

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Fig. 3. (a) Schematic of asynchronous two-way optical link. (b) System takes place at the Lanxiang Lake, Shanghai. SPD, single-photon detector; LD, laser diode; FPGA, field programmable gate array; F, filter; M, mirror; VOA, variable optical attenuator; COL, collimator.

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Fig. 4. TDC performance test.

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Fig. 5. (a) Time comparison results. (b) Statistical histogram of distance measurement.

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$a_{4}$	$a_{3}$	$a_{2}$	$a_{1}$	$a_{0}$	Out	$a_{4}$	$a_{3}$	$a_{2}$	$a_{1}$	$a_{0}$	Out
0	1	0	0	1	1	0	0	0	1	1	1
0	0	1	0	0	0	1	0	0	0	1	1
0	0	0	1	0	0	1	1	0	0	0	0
0	0	0	0	1	1	1	1	1	0	0	0
1	0	0	0	0	0	1	1	1	1	0	0
0	1	0	0	0	0	1	1	1	1	1	1
1	0	1	0	0	0	0	1	1	1	1	1
0	1	0	1	0	0	0	0	1	1	1	1
1	0	1	0	1	1	1	0	0	1	1	1
1	1	0	1	0	0	1	1	0	0	1	1
1	1	1	0	1	1	0	1	1	0	0	0
0	1	1	1	0	0	1	0	1	1	0	0
1	0	1	1	1	1	0	1	0	1	1	1
1	1	0	1	1	1	0	0	1	0	1	1
0	1	1	0	1	1	1	0	0	1	0	0
0	0	1	1	0	0