公开(公告)号：US20170343662A1

公开(公告)日：2017-11-30

申请号：US15619506

申请日：2017-06-11

Applicant: Autoliv ASP, Inc.

Inventor： Alain Boutin ,  Xueru Ding

IPC: G01S13/44 ,  G01S7/03 ,  G01S7/288

CPC classification number: G01S13/4454 ,  G01S7/023 ,  G01S7/038 ,  G01S13/931 ,  G01S2007/2886

Abstract: Methods and systems for cancelling continuous wave interference in radar systems include defining an integration time period, dividing the integration time period into sub-periods during which the radar sensor system transmits a radar signal integrating a detected signal during both sub-periods to generate sub-period integrated values, wherein integration in the sub-periods is triggered at points of symmetrical opposite polarities of a down converted interferer signal having a non-integer number of cycles in each sub-period, and adding tire respective sub-period integrated values to cancel interference residue of opposite polarity in the respective sub-periods.