Title:
SPEED DETECTION DEVICE, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/084910
Kind Code:
A1
Abstract:
[Problem] To obtain a wide speed extension range. [Solution] This speed detection device is provided with: a chirp control unit for controlling multiple chirp signals, which are multiplexed among multiple transmission antennas, to be transmitted from the multiple transmission antennas such that intervals TB between the multiple chirp signals in the same transmission antennas are equal and intervals Tc between the multiple chirp signals in different transmission antennas are unequal when the multiple chirp signals are separated in each of the multiple transmission antennas; and a speed determination unit that, on the basis of the multiple chirp signals that are reflected and are received by multiple reception antennas, calculates M-number of speed candidates faster than a maximum speed Vmax obtained from the intervals TB, acquires M-number of arrival angle spectra by performing phase error correction and arrival angle estimation regarding the M-number of speed candidates, and determines a true speed by processing the M-number of arrival angle spectra, where M represents a natural number of 1 or greater.
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Inventors:
SASAKI RYO (JP)
Application Number:
PCT/JP2022/034498
Publication Date:
May 19, 2023
Filing Date:
September 15, 2022
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
G01S13/34; G01S7/02; G01S13/58
Foreign References:
| JP2020056592A | 2020-04-09 | |||
| JP2019522220A | 2019-08-08 | |||
| JP2019039686A | 2019-03-14 | |||
| US20210247508A1 | 2021-08-12 |
Attorney, Agent or Firm:
MINAMI AOYAMA PATENT AND TRADEMARK ATTORNEYS (JP)
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