Infrared and Laser Engineering, Volume. 50, Issue 11, 20210067(2021)
Performance modeling and simulation of space based tracking layer constellation
Figures & Tables(8)
Fig. 4. Relationship between FOV and satellite number under one coverage
Table 1. Other parameters of tracking layer satellite
View tableView in ArticleTable 1. Other parameters of tracking layer satellite
Obit position accuracy Obit velocity accuracy 10 m (3σ) 0.02 m/s (3σ) TT & C frequency Data rate Bit error rate Ka (30-31 GHz) 1 Mbps 1e-7 Data downlink frequency Data rate Ka (20.2-21.2 GHz) At least 500 Mbps (250 GB/d) V-band Crosslink frequency Transmission rate 40-75 GHz 1 Gb/s
Table 2. Relationship between coverage performance and constellation parameters
View tableView in ArticleTable 2. Relationship between coverage performance and constellation parameters
Constellation parameters Satellite number Coverage rate for at least1 valid access Coverage rate for at least2 valid access 7/5/2/180 35 99.3% 52.48% 14/7/2/180 98 100% 99.46%
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Yonghong Xue, Shiwei Fan, Kai Qiao, Lei Zhang. Performance modeling and simulation of space based tracking layer constellation[J]. Infrared and Laser Engineering, 2021, 50(11): 20210067
Paper Information
Category: Space optics
Received: Jan. 26, 2021
Accepted: --
Published Online: Dec. 7, 2021
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