Title:
RANGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/235419
Kind Code:
A1
Abstract:
A background light calculation unit (S90) calculates, with respect to a plurality of azimuthal regions, a background light quantity parameter related to the quantity of background light arriving from the azimuthal regions. A coefficient calculation unit (S260) calculates accumulation coefficients with respect to a target azimuthal region and a plurality of surrounding azimuthal regions so that differences between the background light quantity parameter of the surrounding azimuthal regions and the background light quantity parameter of the target azimuthal region have a negative correlation. A multiplied waveform generation unit (S270) generates, with respect to ranging waveform data of the target azimuthal region and the plurality of surrounding azimuthal regions, coefficient-multiplied waveform data by multiplying the ranging waveform data by the corresponding accumulation coefficient. An accumulated waveform generation unit (S280) generates accumulated waveform data by accumulating the coefficient multiplied waveform data of the target azimuthal region and the plurality of surrounding azimuthal regions.
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Inventors:
YOSHIMOTO NAOKI (JP)
Application Number:
PCT/JP2020/019128
Publication Date:
November 26, 2020
Filing Date:
May 13, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01C3/06; G01S7/4865; G01S17/42; G01S17/931
Foreign References:
| US20120134598A1 | 2012-05-31 | |||
| JP2016070874A | 2016-05-09 | |||
| JP2016176750A | 2016-10-06 | |||
| JP2015224965A | 2015-12-14 | |||
| JPH07191148A | 1995-07-28 | |||
| JPH04279878A | 1992-10-05 | |||
| CN105607073A | 2016-05-25 |
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
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