• Infrared and Laser Engineering
  • Vol. 50, Issue 11, 20210067 (2021)
Yonghong Xue, Shiwei Fan, Kai Qiao, and Lei Zhang
Author Affiliations
  • Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China
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    DOI: 10.3788/IRLA20210067 Cite this Article
    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 Copy Citation Text show less
    National Defense Space Architecture[1]
    Fig. 1. National Defense Space Architecture[1]
    Sketch map of satellite attitude and sensor point
    Fig. 2. Sketch map of satellite attitude and sensor point
    Schematic diagram of optical cross location
    Fig. 3. Schematic diagram of optical cross location
    Relationship between FOV and satellite number under one coverage
    Fig. 4. Relationship between FOV and satellite number under one coverage
    Relationship between range, IFOV and CR
    Fig. 5. Relationship between range, IFOV and CR
    Global GDOP map of tracking layer
    Fig. 6. Global GDOP map of tracking layer
    Obit position accuracyObit velocity accuracy
    10 m (3σ) 0.02 m/s (3σ)
    TT & C frequencyData rateBit error rate
    Ka (30-31 GHz)1 Mbps1e-7
    Data downlink frequencyData rate
    Ka (20.2-21.2 GHz)At least 500 Mbps (250 GB/d)
    V-band Crosslink frequencyTransmission rate
    40-75 GHz1 Gb/s
    Table 1. Other parameters of tracking layer satellite
    Constellation parametersSatellite numberCoverage rate for at least1 valid accessCoverage rate for at least2 valid access
    7/5/2/1803599.3%52.48%
    14/7/2/18098100%99.46%
    Table 2. Relationship between coverage performance and constellation parameters
    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
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