Fig. 1. Schematic diagram of TDI algorithm in digital domain

Fig. 2. Pixel structure of "L" shaped effective area

Fig. 3. MTF curves of TDI CMOS at different opening rates

Fig. 4. The moving target point is imaged as a line in the projection of the sensor

Fig. 5. MTF curves at different RS speeds and stages

Fig. 6. Relationship between image motion and sinusoidal motion

Fig. 7. Relationship between MTF, vibration frequency and exposure time

Fig. 8. Simulation images of the sector target under different aperture ratios: 0.8, 0.5 and 0.3 (from left to right)

Fig. 9. MTF of images in figure 8

Fig. 10. TDI images with different rolling shutter speeds. (a) 6 μs; (b) 10 μs

Fig. 11. TDI images with different exposure times. 100, 140 and 180 μs (from top to bottom)