Title:
SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/131396
Kind Code:
A1
Abstract:
In order to reduce the circuit resource required for digital signal processing in a light receiver, this signal processing device is provided with: a Doppler shift compensation unit which performs detection of a Doppler shift amount from a reception signal, and compensates for a Doppler shift of the reception signal on the basis of the result of detection; a resampling unit which performs down-sampling of the reception signal of which the Doppler shift has been compensated for in the Doppler shift compensation unit; a reception signal processing unit which processes the reception signal that has been resampled in the resampling unit; and a first communication unit for externally outputting the reception signal that has been processed by the reception signal processing unit.
Inventors:
ARIKAWA MANABU (JP)
ITO TOSHIHARU (JP)
ITO TOSHIHARU (JP)
Application Number:
PCT/JP2018/046851
Publication Date:
July 04, 2019
Filing Date:
December 19, 2018
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B10/118; H04B10/61
Domestic Patent References:
| WO2017122605A1 | 2017-07-20 |
Foreign References:
| JP2015041821A | 2015-03-02 | |||
| JP2013179497A | 2013-09-09 | |||
| JP2012074924A | 2012-04-12 |
Other References:
HOSOKAWA, KOHEI ET AL.: "Review on SDM-type Optical Space Receiver (2), Demodulation method by DSP synthesis of the multimode signal light", PROCEEDINGS OF THE 2015 IEICE GENERAL CONFERENCE, March 2015 (2015-03-01)
GEISLER, D. J. ET AL.: "Optical ground terminals using multi-aperture digital coherent combining (Invited paper", IEEE PHOTONICS CONFERENCE, 1 October 2017 (2017-10-01), pages 715 - 716, XP033261870, doi:10.1109/IPCon.2017.8116293
GEISLER, D. J. ET AL.: "Optical ground terminals using multi-aperture digital coherent combining (Invited paper", IEEE PHOTONICS CONFERENCE, 1 October 2017 (2017-10-01), pages 715 - 716, XP033261870, doi:10.1109/IPCon.2017.8116293
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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