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

Apparatus and method of obtaining correction coefficient of receiver

A correction coefficient and receiver technology, applied in the field of network communication, can solve problems such as inconvenience and cost, and achieve the effects of wide coverage, reduced cost and low price

Inactive Publication Date: 2006-07-19
HUAWEI TECH CO LTD
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the above-mentioned shortcomings of the prior art, and provide a device and method for obtaining receiver correction coefficients, which solves the problems of inconvenience and high cost of the prior art, thereby providing a convenient and reduced test for the test cost and improved test accuracy

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
  • Apparatus and method of obtaining correction coefficient of receiver
  • Apparatus and method of obtaining correction coefficient of receiver
  • Apparatus and method of obtaining correction coefficient of receiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings.

[0039] In order to better understand the present invention, first briefly introduce the correction principle of the present invention.

[0040] The present invention adopts the Y factor test method well-known to those skilled in the art, by adding noise signals with different signal strength twice, the receiver tests the received signal strength, and completes the test of noise figure and gain.

[0041] Now assume that the noise source is represented by the excess noise ratio (ENR), and the ENR correction information is provided by the noise source, at T 0 = Valid at 290K, and,

[0042] T s OFF = physical temperature of the noise source (usually defined as 290K),

[0043] T s ON = Noise temperature when the noise source is in the "ON" state. but

[0044] EN...

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 relates to a device for attaining the correct parameter of receiver, which comprises a receiver, a background computer and a noise resource. Wherein, one end of said noise source is connected to the input port of analogue channel of receiver, while another end is connected to the control unit of receiver to control the noise source; the background computer is connected to the control unit to send the correct request information of noise source while said information comprises the excess noise ratio information of noise source and the correct range of receiver. The invention also provides relative method which comprises: the background sends the correct request information of noise source to the receiver; the receiver controls the noise source and measures the correct parameter of receiver according to said correct request information. The invention uses the general noise source, to reduce the cost, improve the test accuracy and enlarge the test range.

Description

technical field [0001] The invention relates to network communication technology, in particular to a device and method for obtaining receiver correction coefficients. Background technique [0002] In modern communication systems, people have higher and higher requirements for communication quality, so there is a high precision requirement for the signal strength measurement received by the receiver. Therefore, in order to ensure that the receiver works on different channels and with different gains, the received signal strength measurement can maintain a small error, usually the receiver needs to correct the receiving channel during production, opening, and maintenance, that is, The parameters of the receiving channel are corrected, and it is hoped to have a high correction accuracy, and the correction parameters usually include gain and noise figure. [0003] When the receiver measures the received signal strength, it needs to know the noise figure and gain data of the rec...

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): H04L25/03
Inventor 李挺钊
Owner HUAWEI TECH CO LTD
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