Title:
DOWN-SAMPLING METHOD AND APPARATUS FOR BASEBAND SIGNAL OF DIGITAL RECEIVER, AND TERMINAL AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/051461
Kind Code:
A1
Abstract:
Disclosed in the present application are a down-sampling method and apparatus for a baseband signal of a digital receiver, and a terminal and a storage medium. The method comprises: performing a correlation operation on a local PN sequence signal and a received sampling pilot PN sequence signal, and performing down-sampling at different positions according to a result; respectively comparing obtained channel response contours with a preset threshold value, determining main paths, and calculating the total energy of the main paths in each scenario; sorting the total energy of the main paths in each scenario, so as to obtain a first scenario and a second scenario which rank top two; calculating an SINR corresponding to the minimum main path in the first scenario, and calculating an SINR corresponding to the minimum main path in the second scenario; and comparing the two SINRs, which are obtained by means of calculation, selecting a sampling position of the scenario corresponding to the higher SINR, so as to perform sampling, and outputting sampling data.
Inventors:
LI QIANG (CN)
LI WEICHAO (CN)
TAO XIAOFENG (CN)
LI WEICHAO (CN)
TAO XIAOFENG (CN)
Application Number:
PCT/CN2023/113357
Publication Date:
March 14, 2024
Filing Date:
August 16, 2023
Export Citation:
Assignee:
PENG CHENG LAB (CN)
International Classes:
H04B1/10
Foreign References:
| CN115632668A | 2023-01-20 | |||
| CN101193083A | 2008-06-04 | |||
| CN106464273A | 2017-02-22 | |||
| US20200007185A1 | 2020-01-02 | |||
| US20210399762A1 | 2021-12-23 |
Other References:
CHEN TAO, LIU LIZHI, GUO LIMIN: "Intra-pulse Modulation Recognition of Radar Signals Based on MWC Compressed Sampling Wideband Receiver", JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY, ZHONGGUO KEXUEYUAN DIANZIXUE YANJIUSUO,CHINESE ACADEMY OF SCIENCES, INSTITUTE OF ELECTRONICS, CN, vol. 40, no. 4, 1 April 2018 (2018-04-01), CN , pages 867 - 874, XP093147807, ISSN: 1009-5896, DOI: 10.11999/JEIT170612
LENOIR VINCENT; LATTARD DIDIER; DEHMAS FRANCOIS; MORCHE DOMINIQUE; JERRAYA AHMED: "Computational load reduction by downsampling for energy-efficient digital baseband", 2014 IEEE 12TH INTERNATIONAL NEW CIRCUITS AND SYSTEMS CONFERENCE (NEWCAS), IEEE, 22 June 2014 (2014-06-22), pages 333 - 336, XP032668073, DOI: 10.1109/NEWCAS.2014.6934050
CHEN HAO; VUN CHAN HUA: "A Novel Matrix Optimization for Compressive Sampling-Based Sub-Nyquist OFDM Receiver in Cognitive Radio", CIRCUITS, SYSTEMS AND SIGNAL PROCESSING., CAMBRIDGE, MS., US, vol. 37, no. 11, 26 March 2018 (2018-03-26), US , pages 5069 - 5086, XP036615836, ISSN: 0278-081X, DOI: 10.1007/s00034-018-0806-8
LENOIR VINCENT; LATTARD DIDIER; DEHMAS FRANCOIS; MORCHE DOMINIQUE; JERRAYA AHMED: "Computational load reduction by downsampling for energy-efficient digital baseband", 2014 IEEE 12TH INTERNATIONAL NEW CIRCUITS AND SYSTEMS CONFERENCE (NEWCAS), IEEE, 22 June 2014 (2014-06-22), pages 333 - 336, XP032668073, DOI: 10.1109/NEWCAS.2014.6934050
CHEN HAO; VUN CHAN HUA: "A Novel Matrix Optimization for Compressive Sampling-Based Sub-Nyquist OFDM Receiver in Cognitive Radio", CIRCUITS, SYSTEMS AND SIGNAL PROCESSING., CAMBRIDGE, MS., US, vol. 37, no. 11, 26 March 2018 (2018-03-26), US , pages 5069 - 5086, XP036615836, ISSN: 0278-081X, DOI: 10.1007/s00034-018-0806-8
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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