Repetition (rhetorical device)

Linguistics

Philosophy

Satellite laser ranging

Materials science

Photon counting

Range (aeronautics)

Telecommunications

Computer science

Resolution (logic)

Geology

Photon

Laser

Physics

Optics

Ranging

Artificial intelligence

Remote sensing

Composite material

Lidar

Laser ranging

Scientific Reports

We demonstrate a high-speed photon-counting laser ranging system with laser pulses of multiple repetition rates to extend the unambiguous range. In the experiment, the laser pulses of three different repetition rates around 10 MHz were employed to enlarge the maximum unambiguous range from 15 m to 165 km. Moreover, the range of distances was increased as well, enabling the measurement on different targets of large separation distance with high depth resolution. An outdoor photon-counting laser ranging up to 21 km was realized with high repetition rate, which is beneficial for the airborne and satellite-based topographic mapping.

High-speed photon-counting laser ranging for broad range of distances