Fig. 1. Schematic diagram of grating diffraction

Fig. 2. Experimental platform of laser warning system based on grating diffraction

Fig. 3. Block diagram of overall control

Fig. 4. Diagram of distortion correction

Fig. 5. Images acquired at different wavelengths

Fig. 6. Partial wavelength images with different azimuth angles and pitch angles

Fig. 7. Fitting diagram of position relations between laser parameters and pixel coordinates

Fig. 8. Errors comparison between azimuth fitting data and actual data

Fig. 9. Errors between fitting data and actual data of azimuth angle and pitch angle