Hongxing Yang

Jiubin Tan

Pengcheng Hu

Jing Li

Xu Xing

The present disclosure relates to a collaborative phase-shift laser ranging device based on differential modulation and demodulation of coarse and precise measuring wavelength and a ranging method thereof. A collaboration terminal is disposed at a target to be measured of a phase-shift laser ranging system, which can improve the intensity of measurement light and then irradiate the same back to a measuring terminal, thereby resolving the problem of low ranging accuracy caused by the attenuation of light intensity during long-distance ranging. The collaboration terminal detects coarseness gauge signals and modulates a laser source by means of differential modulation; the collaboration terminal detects precision gauge signals by means of difference frequency demodulation, and then the intensity of measurement light is improved by mixing and restoring the precision gauge signals and modulating the collaboration-terminal laser source.

Collaborative phase-shift laser ranging device based on differential modulation and demodulation of coarse and precise measuring wavelength and ranging method thereof

Growing community of inventors

Heilongjiang, China

Hongxing Yang