Application of array detection technology in laser ranging

Content	Performance specification
Response band	500-1 700 nm
Detection efficiency	≥20%（@1 064 nm）
Dark noise	≤10000 cps（@20%）
Time jitter	≤400 ps
Recovery time	≤100 ns
Output assignment	50-180 mV
Working mode	Free

Table 2. [in Chinese]

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Table 2. [in Chinese]

Content	Performance specification
Main input channels	2，SMA
External clock channel	1，SMA
External arm channel	1，SMA
Output channels	2，SMA
Time resolution	0.9 ps
Frequency resolution	10-12 digits/second
Max measurement rate	4 million/second per channel
Main input channels frequency range	2 700 MHz

Table 3. [in Chinese]

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Table 3. [in Chinese]

Instrument	Multi-channel ET	A033-ET
Time resolution	0.9 ps	<5 ps
Dead time	~1/2 700 MHz	50 ns
Max measurement rate	~180 kHz/channel×18channel @software, 4 MHz/channel×20channel @hardware	12 kHz

Table 4. [in Chinese]
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Table 4. [in Chinese]
Target GT668 A033-ET
Ground target/cm ~0.5 ~0.6
LAGEOS satellites/cm <1.5 <1.5
Other satellites/cm <2.0 <2.0

Table 5. [in Chinese]
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Table 5. [in Chinese]
Code Apogee/km RCS/m² Size/m RMS/m
900 1 009 0.049 Diameter 0.39 <1.5
902 1 078 0.045 Diameter 0.39 <1.5
1 520 1 179 0.048 Diameter 0.39 <1.5

Table 6. [in Chinese]
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Table 6. [in Chinese]
Date Range/km RMS/m Laser energy/W
20190123 4250-5171 2.32 ~200
20190127 6120-6261 2.12 ~200

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Haitao Zhang, Zhulian Li, Rufeng Tang, Dongsheng Zhai, Rongwang Li, Xiaoyu Pi, Honglin Fu, Yuqiang Li. Application of array detection technology in laser ranging[J]. Infrared and Laser Engineering, 2020, 49(10): 20200006

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