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

A Phase Compensation Method for Variable Frequency Delay Calibration System

A phase compensation and calibration system technology, applied in the field of phase compensation, can solve problems such as phase compensation methods without frequency conversion delay calibration systems

Active Publication Date: 2016-01-06
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no method for eliminating the local oscillator phase difference between the above two local oscillator channels in the prior art, that is, there is no phase compensation method specially used for the frequency conversion delay calibration system

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
  • A Phase Compensation Method for Variable Frequency Delay Calibration System
  • A Phase Compensation Method for Variable Frequency Delay Calibration System
  • A Phase Compensation Method for Variable Frequency Delay Calibration System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] The content of the invention of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0061] like figure 2 As shown, the frequency conversion delay calibration system used in the phase compensation method for the frequency conversion delay calibration system provided by this embodiment includes a first receiving channel 1, a second receiving channel 2, a local oscillator source 3, and a first mixer 4 , a second mixer 5 , a first A / D acquisition module 6 , a second A / D acquisition module 7 , a computer 8 , a first local oscillator channel 9 and a second local oscillator channel 10 . The first receiving channel 1 is electrically connected with the first mixer 4 , the first A / D acquisition module 6 and the computer 8 in sequence. The second receiving channel 2 is electrically connected with the second mixer 5 , the second A / D acquisition module 7 and the computer 8 in sequence. The computer 8 is used for c...

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 phase compensation method for a frequency conversion time delay calibration system. The method includes the following steps: sending a continuous wave source signal, dividing the continuous wave source signal into a first continuous wave sub-signal and a second continuous wave sub-signal, adjusting the power of the first continuous wave sub-signal and the power of the second continuous wave sub-signal respectively, sending a first local oscillator signal and a second local oscillator signal, acquiring a first intermediate frequency signal and a second intermediate frequency signal through frequency mixing, acquiring a first set of data samples and a second set of data samples through sampling, acquiring a third set of data samples and a fourth set of data samples through the Hilbert transform, acquiring the phase difference between the first intermediate frequency signal and the second intermediate frequency signal through calculation, sending a third local oscillator signal and a fourth local oscillator signal, acquiring a third intermediate frequency signal and a fourth intermediate frequency signal through frequency mixing, acquiring a fifth set of data samples and a sixth set of data samples through sampling, acquiring a seventh set of data samples and an eighth set of data samples through the Hilbert transform, and acquiring the phase difference between the third intermediate frequency signal and the fourth intermediate frequency signal through calculation.

Description

technical field [0001] The invention relates to the technical field of phase compensation, in particular to a phase compensation method used in a frequency conversion delay calibration system. Background technique [0002] like figure 1 As shown, the frequency conversion delay calibration system in the prior art includes a local oscillator source, a first local oscillator channel, a second local oscillator channel, a first mixer and a second mixer. When in use, on the one hand, the first signal to be tested is input to the first mixer, and the second signal to be tested is input to the second mixer at the same time, the frequency of the first signal to be tested is the same as that of the second signal to be tested, but the first There is an original phase difference between the signal to be measured and the second signal to be measured; on the other hand, the local oscillator source sends the first local oscillator signal to the first mixer through the first local oscillat...

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): H03D7/16
Inventor 贾冒华谭帆彭薛葵童琼
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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