Title:
SIGNAL DEMODULATION METHOD AND APPARATUS, COMPUTER STORAGE MEDIUM AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/007338
Kind Code:
A1
Abstract:
The present application provides a signal demodulation method and apparatus, a computer storage medium and a device. The method comprises: acquiring a signal to be demodulated; performing direct current blocking and bias processing on the signal to obtain a processed signal; and comparing the processed signal with a preset decision signal, and obtaining a demodulation signal according to the comparison result. In this way, by means of direct current blocking processing of a modulation signal, dynamic changes of direct current components caused by the change of the average power of a carrier signal can be avoided, and error demodulation of the modulation signal can thus be avoided; moreover, bias processing after the direct current blocking on the modulation signal can further realize alternating current signal decision without introducing a negative pressure source; in addition, real-time decision is performed on the processed signal by utilizing the preset decision signal, dynamic adaptation to the average power of the carrier signal can be achieved, thereby ensuring the correct demodulation of the modulation signal and improving the accuracy of the demodulation result.
Inventors:
YANG ZHI (CN)
ZHANG CUIHONG (CN)
MA WEIDONG (CN)
ZHANG CUIHONG (CN)
MA WEIDONG (CN)
Application Number:
PCT/CN2020/137956
Publication Date:
January 13, 2022
Filing Date:
December 21, 2020
Export Citation:
Assignee:
ACCELINK TECH CO LTD (CN)
International Classes:
H04B10/60; H04Q11/00
Foreign References:
| CN111970585A | 2020-11-20 | |||
| CN105450577A | 2016-03-30 | |||
| CN108092719A | 2018-05-29 | |||
| CN102123122A | 2011-07-13 | |||
| US20050260965A1 | 2005-11-24 | |||
| CN201903351U | 2011-07-20 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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