Streaming architecture broadband signal digital down-conversion system based on GPU

A digital down-conversion and broadband signal technology, applied in the field of communication, can solve problems such as the difficulty in parallel processing of multi-channel signals, the long development cycle of the down-converter system, and the difficulty in balancing performance and efficiency, so as to improve the accuracy of mixing and filtering operations , Reduce the difficulty of development, and refactor the effect of flexibility

Active Publication Date: 2020-09-18
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) It is difficult to realize the parallel processing of multi-channel signals of down-converter based on GPU;
[0007] (2) The development cycle of FPGA-based down-converter system is long, difficult to reconfigure, and difficult to upgrade;
[0008] (3) FPGA resources are limited, and performance and efficiency are difficult to balance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Streaming architecture broadband signal digital down-conversion system based on GPU
  • Streaming architecture broadband signal digital down-conversion system based on GPU
  • Streaming architecture broadband signal digital down-conversion system based on GPU

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0028] see figure 1 , a GPU-based stream architecture broadband signal digital down-conversion system, including an acquisition module, an interface module, a control module, and an operation module, wherein the control module includes a CPU control unit and a data cache unit, and the operation module includes more than two GPUs , and an NCO lookup table and a filtering unit are stored in the GPU, wherein the NCO lookup table includes discrete phase values ​​within one cycle of the NCO; that is to say, the NCO lookup table and the filtering unit are equivalent to functions programmed in the GPU module, and the NCO lookup table is stored in the texture buffer with its ow...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

According to the streaming architecture broadband signal digital down-conversion system based on a GPU, the GPU is used as a core data processing device, so that the development difficulty of a digital down-converter can be effectively reduced, and the frequency mixing and filtering operation precision is improved; furthermore, GPU streams are used as a parallel operation basis, each stream is used for processing data in one channel, multiple streams are concurrently used for realizing multi-channel real-time parallel processing, the number of GPUs can be flexibly configured according to performance requirements, and multi-channel data parallel processing is realized in the GPUs and among the GPUs by using multiple streams and multiple threads; therefore, compared with a traditional digital down-converter based on an FPGA, the digital down-converter is flexible in reconstruction, higher in reliability, better in expansibility and higher in operation precision; compared with a traditional digital down-converter based on a GPU, the parallelism of data processing is better, simultaneous parallel processing of multiple channels of signals can be achieved, and the requirement for digital down conversion of multiple channels of broadband signals of any bandwidth of a communication system can be met.

Description

technical field [0001] The invention belongs to the technical field of communications, and in particular relates to a GPU-based streaming architecture broadband signal digital down-conversion system. Background technique [0002] In a traditional communication system, the signal receiving system is usually divided into two parts, the front end and the back end. The back-end mainly completes functions such as tracking, synchronization, and demodulation of baseband signals, while the front-end mainly completes functions such as down-conversion, filtering, sampling, and extraction of radio frequency signals. At present, with the development of software radio technology, the digital front end has gradually replaced the original analog front end and has been widely used in the communication field because of its programmable and flexible features. [0003] Current broadband communication systems generally have a bandwidth of tens of MHz or even hundreds of MHz, and simultaneously...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/16
CPCH04B1/16
Inventor 马宏焦义文陈永强
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap