Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

PXI bus-based radio frequency real-time measurement vector analysis plug-in structural module

A real-time measurement and vector analysis technology, applied in spectrum analysis/Fourier analysis, transmission monitoring, electrical components, etc., can solve problems such as insufficiency, the maximum resolution bandwidth is only 1M, etc., achieving ingenious installation and easy scalability , to achieve the effect of flexible

Inactive Publication Date: 2014-03-12
63963 TROOP OF THE PLA +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic spectrum analysis module based on the PXI bus is only the AV6951 model PXI RF spectrum analyzer of China Electronics 41 Institute, but the maximum resolution bandwidth is only 1M, which cannot meet the needs of the development direction of large broadband for modern communication signals

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
  • PXI bus-based radio frequency real-time measurement vector analysis plug-in structural module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] see figure 1 shown, is a specific embodiment of the present invention.

[0037] from figure 1 It can be seen that: the present invention includes a PXI interface and an intermediate frequency signal processing circuit 1, an analog-to-digital conversion circuit 2, a receiver circuit 3, a frequency synthesizer circuit 4 and a peripheral card E, which combine to form a modular structure as a whole, in:

[0038]The PXI interface and the intermediate frequency signal processing circuit 1 are PCI+FPGA and DDC+FPGA architectures, and are provided with a PCI interface chip U1, a DDC chip U4, an FPGA chip U2, an SDRAM chip U3 and a clock chip U6, and the address of the PCI interface chip, The data and control ports are directly connected to the PXI bus through the plug-in card E; the HP port of the PCI interface chip U1 is directly bidirectionally connected to the FP port of the FPGA chip U2; The 11th and 12th pins are directly connected; the FD port of the FPGA chip U2 i...

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

The invention discloses a PXI bus-based radio frequency real-time measurement vector analysis plug-in structural module, which comprises a PXI interface, a medium-frequency signal processing circuit (1), an analog to digital conversion circuit (2), a receiver circuit (3), a frequency synthesizer circuit (4) and an external plug-in card E which are combined into an integral modular structure. Quick real-time measurement and control such as real-time high-speed information process, real-time calibration and correction, system self-check, fault diagnosis and the like are provided simultaneously while radio-frequency spectrum real-time measurement, vector signal analysis, multi-display section and data processing functions are realized with an integral module design method by using an FPGA (Field Programmable Gate Array) developing tool according to an upper layer software platform and a bottom layer real-time measurement and control and data analysis and processing part; and the module has the characteristics of reasonable design, compact structure, ordered layout, skillful installation, convenience for using, reliable work and the like.

Description

technical field [0001] The invention relates to a real-time measurement vector analysis module, in particular to a plug-in card structure module for radio frequency real-time measurement vector analysis based on a PXI bus. Background technique [0002] Since the advent of PXI bus technology, automatic test systems based on PXI bus have been widely used and developed rapidly. such as: [0003] Page 114 of "Electronic Design Technology" published in No. 10, 2002 introduced the latest PXI-5660 vector signal analyzer that NI introduced to measure RF signals from 9kHz to 2.7GHz. The instrument contains a 2.7GHz digital downconverter, IF digitization circuitry, and Spectrum Measurement Tool (SMT) for LabVIEW and LabWindow / CVI. The analyzer makes spectrum measurements down-converts the RF signal to an IF, and digitally samples it at the IF through an anti-aliasing filter. After the sampled digital signal is decomposed, filtered, extracted and interpolated by digital quadratu...

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 Patents(China)
IPC IPC(8): H04B17/00G01R23/16
Inventor 吴成海张兵志秦开宇范喜全阎啸吴绍炜罗志才曹维王茜岳发义周亮刘建国金燕华孙德福王继迎王战军
Owner 63963 TROOP OF THE PLA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com