公开(公告)号：US20240069196A1

公开(公告)日：2024-02-29

申请号：US17898956

申请日：2022-08-30

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Weiwen Yu ,  Ka Sing Anthony Yuen

IPC: G01S17/10 ,  G01S7/481 ,  G01S7/4865

CPC classification number: G01S17/10 ,  G01S7/4817 ,  G01S7/4865

Abstract: Systems and methods which provide time of flight (ToF) measurement techniques implementing threshold-based sampling for waveform digitizing to generate a signal waveform representing a detected ToF measurement signal from which a ToF distance measurement is determinable are described. An example ToF measurement system may apply one or more curve fitting techniques, such as using one or more curve fitting hardware accelerators, to data from threshold-based sampling for waveform digitizing of the received pulse. Examples of a ToF measurement system may implement time-to-digital converters (TDCs) to sample a received pulse using a plurality of thresholds. ToF measurement systems of examples may implement multi-point filtering, such as using a hardware accelerator.