Fig. 1. Typical layout of periodic targets

Fig. 2. Data processing flow of traditional MTF measurement based on periodic targets

Fig. 3. Schematic of square-wave periodic signal and its output from imaging system

Fig. 4. Data processing flow of MTF measurement based on parametric fitting

Fig. 5. Simulated MTF. (a) Gaussian-type PSF; (b) sampling data of periodic targets and fitting result; (c) sinc2-type PSF; (d) sampling data of periodic targets and fitting result; (e) specified-type PSF; (f) sampling data of periodic targets and fitting result

Fig. 6. Effect of imaging noise on MTF measurement error. (a) Sampling data and fitting results; (b) variation of MTF measurement error

Fig. 7. Effect of target-periodic matching deviation on MTF measurement error. (a) Sampling data and fitting result; (b) variation of MTF measurement error

Fig. 8. Effect of measuring-angle matching deviation on periodic matching error

Fig. 9. Effect of measuring-angle matching deviation on MTF measurement error. (a) Sampling data and fitting result; (b) variation of MTF measurement error

Fig. 10. Remote sensing image of periodic ground targets

Fig. 11. Sampling data of periodic targets and its fitting result. (a) Along-track direction; (b) cross-track direction

Fig. 12. Measured and calculated results from slanted-edge method. (a) Along-track direction; (b) cross-track direction