公开(公告)号：US20170343671A1

公开(公告)日：2017-11-30

申请号：US15226435

申请日：2016-08-02

Applicant: Autoliv ASP, Inc.

Inventor： Bernard de Mersseman ,  Kenneth V. Puglia

IPC: G01S17/10 ,  G01S7/484

CPC classification number: G01S17/102 ,  G01S7/484 ,  G01S7/486 ,  G01S17/10 ,  G01S17/58 ,  G01S17/936

Abstract: A LiDAR system and method includes a pulse modulation circuit and an amplitude modulation circuit for applying pulse modulation and amplitude modulation to a continuous signal to generate a plurality of amplitude-modulated pulses of the continuous signal. An optical modulation circuit applies the amplitude-modulated pulses of the continuous signal to an optical signal to generate a pulse amplitude-modulated (PAM) optical signal. Optical transmission elements transmit the PAM optical signal into a region, and optical receiving elements receive reflected optical signals from the region. Receive signal processing circuitry uses quadrature detection to process the reflected optical signals.

公开(公告)号：US20170343652A1

公开(公告)日：2017-11-30

申请号：US15264830

申请日：2016-09-14

Applicant: Autoliv ASP, Inc.

Inventor： Bernard de Mersseman ,  Kenneth V. Puglia

IPC: G01S7/484 ,  G01S17/02 ,  G01S7/486

Abstract: A LiDAR system and method include a signal generator generating an output signal having a variable frequency. A modulation circuit receives the output signal from the signal generator and applies the output signal from the signal generator to an optical signal to generate an envelope-modulated optical signal having a frequency-modulated (FM) modulation envelope. Optical transmission elements transmit the envelope-modulated optical signal into a region. Optical receiving elements receive reflected optical signals from the region. Receive signal processing circuitry receives the reflected optical signals and uses quadrature detection to process the reflected optical signals.