公开(公告)号：US20180267167A1

公开(公告)日：2018-09-20

申请号：US15905899

申请日：2018-02-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TADASHI MORITA ,  MASAHIKO HASHIMOTO

IPC: G01S15/04

CPC classification number: G01S15/04 ,  G01S7/53 ,  G01S7/534 ,  G01S7/536 ,  G01S15/325 ,  G01S15/50 ,  G01S15/931

Abstract: A detection apparatus that includes correlation processing systems that each find a correlation between a predetermined code sequence and a wave detection signal obtained by detecting a phase-modulated input wave at a frequency different from a frequency used by a different one of the correlation processing systems, and thereby generate a correlation signal, level reduction processors that each receive the correlation signal from a corresponding one of the plurality of correlation processing systems and reduce a level of the received correlation signal when the correlation signal is not to be used for detection of the target or do not reduce the level of the received correlation signal when the correlation signal is to be used for detection of the target, and a detector that detects at least presence or absence of the target based on the correlation signal processed by each of the plurality of level reduction processors.

公开(公告)号：US20180088231A1

公开(公告)日：2018-03-29

申请号：US15707459

申请日：2017-09-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TADASHI MORITA ,  MASAHIKO HASHIMOTO

IPC: G01S15/58 ,  G01S15/93 ,  G01S7/539

CPC classification number: G01S15/582 ,  G01S7/415 ,  G01S7/5276 ,  G01S7/539 ,  G01S13/04 ,  G01S13/325 ,  G01S13/584 ,  G01S15/04 ,  G01S15/104 ,  G01S15/325 ,  G01S15/52 ,  G01S15/931 ,  G01S2007/358 ,  G01S2013/9346 ,  G01S2013/9364 ,  G01S2013/9367

Abstract: A detection device includes: a first correlation circuit that computes correlation of a first wave detection signal, which is a phase-modulated input wave detected at determined frequency, with a determined code sequence for every code composing the determined code sequence, and to generate first correlation signals the number of which corresponds to a code sequence length, which is a length of the determined code sequence; and a control circuit that rotates phases of the first correlation signals, generates an added value by adding the phase-rotated first correlation signals, and determines based on the added value whether the phase-modulated input wave is a return wave from a determined object.