Pengji ZHOU, Xiaodong WANG, Jihong DONG, Xianpeng HAO, Jingtao HUANG. Imaging noise analyzing and suppressing for Tianwen-1 high-resolution camera[J]. Optics and Precision Engineering, 2022, 30(2): 217
- Optics and Precision Engineering
- Vol. 30, Issue 2, 217 (2022)
Fig. 1. Principle block diagram of driving circuit of the CCD
Fig. 2. Schematic diagram of crosstalk in imaging system
Fig. 3. Model of crosstalk in circuit
Fig. 4. Timing of drive signal in abrupt transfer
Fig. 5. Timing of drive signal in sequential transfer
Fig. 6. Oscillogram of vertical transfer
Fig. 7. Regulator circuit of time-constant of driver signal
Fig. 8. Panchromatic images in the same and different speeds condition
Fig. 9. Installation diagram of isolating copper
Fig. 10. Allometric image before and after shielding
Fig. 11. Test image of TDI CCD in outdoor scene
Fig. 12. Image of RGB fusion
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Table 1. Main technical indicators of a TDI CCD
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Table 2. RMS results of the image in half-saturation before and after noise restraining
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Table 3. Radiance estimation of camera entrance pupil for each spectral channel
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Table 4. Test result of SNR of TDI CCD
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