Title:
RECEPTION DEVICE, TIMING DETECTION DEVICE, AND TIMING DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/031336
Kind Code:
A1
Abstract:
The reception device is provided with: a spreading code multiplication unit (232) which generates a correlation value sequence by multiplying a receive signal to which direct sequence spread spectrum is applied by a complex conjugate of a spreading code used for direct sequence spread spectrum; a first correlation power calculation unit (23A) which adds correlation values in the correlation value sequence generated with each multiplication by the spreading code multiplication unit (232) to generate a correlation addition value and calculates a first correlation power value which is a power value representing the correlation addition value; a second correlation power calculation unit (23B) which divides the correlation value sequence into multiple blocks, adds correlation values in each block to generate a partial correlation value and determine a power value representing the partial correlation value per block, and adds the power values obtained for each block to calculate a second correlation power value; and a timing detection unit (23C) for detecting, on the basis of the first correlation power value and the second correlation power value, a timing at which the transmission device originating the receive signal multiplied a transmit signal by the spreading code in direct sequence spread spectrum.
Inventors:
FUKUMA MEGUMI (JP)
HIGASHINAKA MASATSUGU (JP)
HIGASHINAKA MASATSUGU (JP)
Application Number:
PCT/JP2018/029953
Publication Date:
February 13, 2020
Filing Date:
August 09, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04B1/7073
Foreign References:
| JP2015026972A | 2015-02-05 | |||
| JP2006261985A | 2006-09-28 | |||
| JP2010011306A | 2010-01-14 |
Other References:
24 August 2018 (2018-08-24), Retrieved from the Internet ,2018B-5-70>
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
Download PDF:
Previous Patent: USER TERMINAL
Next Patent: OPERATION SWITCH, MEDICAL DEVICE PROVIDED WITH OPERATION SWITCH, AND ENDOSCOPE PROVIDED WITH OPERATI...
Next Patent: OPERATION SWITCH, MEDICAL DEVICE PROVIDED WITH OPERATION SWITCH, AND ENDOSCOPE PROVIDED WITH OPERATI...