Fig. 1. Optical path diagram of laser FMCW measurement

Fig. 2. Time domain of the measured signal

Fig. 3. Frequency domain of the measured signal

Fig. 4. Ranging value of the measured signal in different sections

Fig. 5. Residual phase by forward tuning

Fig. 6. Residual phase by reverse tuning

Fig. 7. Residual phase of dispersion cancellation by forward and reverse tuning

Fig. 8. Ranging value under the condition of forward and reverse tuning and after dispersion cancellation

Fig. 9. The distance profile of the target peak before and after dispersion cancellation