Title:
ANTI-BLOCKING INTERFERENCE BROADBAND RECEIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/206051
Kind Code:
A1
Abstract:
The present invention provides an anti-blocking interference broadband receiving device, comprising band-pass filters, demodulators, low-pass filters, digital-to-analog converters, filter amplitude limiters, and a digital up-conversion group that are connected in sequence; a band-pass filter group and a demodulator group are used for respectively shifting broadband signals onto baseband signals; the low-pass filters and the digital-to-analog converters are used for converting the baseband signals into digital baseband signals; the filter amplitude limiters are used for performing filter amplitude limiting on the digital baseband signals, such that a power spectrum of the baseband signals conforms to a power spectrum distribution characteristic of a useful signal; and the digital up-conversion group is used for shifting the baseband signals onto digital intermediate frequency points. The present invention has the following beneficial effects: an anti-blocking interference broadband receiving device uses a method for receiving by means of frequency band splitting, and then combining in a digital domain; and an influence range of an in-band strong interference signal is isolated by means of frequency domain splitting, such that a system can work even in a working condition of strong interference.
Inventors:
ZENG XIANGXI (CN)
TAN YONG (CN)
LIU SHENGJIE (CN)
LI YANBO (CN)
LI GUANG (CN)
YU GUANGRI (CN)
TAN YONG (CN)
LIU SHENGJIE (CN)
LI YANBO (CN)
LI GUANG (CN)
YU GUANGRI (CN)
Application Number:
PCT/CN2021/139687
Publication Date:
October 06, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
TIANJIN 712 COMM & BROADCAST (CN)
International Classes:
H04B1/12
Domestic Patent References:
| WO2019230382A1 | 2019-12-05 |
Foreign References:
| CN112910476A | 2021-06-04 | |||
| CN101310500A | 2008-11-19 | |||
| CN102088427A | 2011-06-08 | |||
| JP2006129201A | 2006-05-18 |
Attorney, Agent or Firm:
TIANJIN JUNYAN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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