Automatic gain control method for receiving data in short distance radio network

An automatic gain control, short-range wireless technology, applied to the shaping network and baseband system components in the transmitter/receiver, to achieve the effect of small gain change, large signal-to-noise ratio range, and guaranteed adjustment accuracy

Inactive Publication Date: 2006-08-23
BEIJING TRANSPACIFIC IP TECH DEV
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a fast automatic gain control method for receiving data in a short-range wireless network to solve the problem of completing automatic gain control gain adjustment in a very short adjustment time

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
  • Automatic gain control method for receiving data in short distance radio network
  • Automatic gain control method for receiving data in short distance radio network
  • Automatic gain control method for receiving data in short distance radio network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The fast automatic gain control method of receiving data in the short-range wireless network that the present invention proposes, comprises the following steps:

[0028] (1) At any time T 0 is the initial moment, and the signal length of each automatic gain control is assumed to be ΔT, and for the receiving time T 0 to T 0 The radio frequency signal sent by the transmitter in the short-range wireless network within +ΔT is down-converted to obtain the baseband received signal x 1 ;

[0029] (2) According to the set gain value w in to x 1 Amplify the amplitude, so that the current gain value w 1 =w in , and get the baseband receiving digital signal through analog / digital conversion, denoted as x 2 ;

[0030] (3) Receive the digital signal x according to the above-mentioned baseband 2 For the current gain value w 1 Perform nonlinear adjustment to obtain the system gain value w 2 , save the first gain change value Δw(k)=w 2 -w 1 ;

[0031] (4) The above-mentio...

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

Present invention relates to a fast automatic gain control method for receiving data short distance wireless networks, belonging to wireless communication technology field. It contains first receiving radio-frequency signal sent from short distance wireless networks in a time section, after frequency conversion processing to obtain a group of baseband receive digit signal, amplifying amplitude of a group of baseband receive digit signal according to current gain value. Proceeding statistics sampling point number whose signal amplitude is greater than target amplitude value in baseband receive digit signal, comparing said sampling point number with an ideal number range, circulation large or small amplitude adjusting gain value to continuously several time section signal, to make receiving signal amplitude approaching to A/D convertor full scale at automatic gain control ending. Said method reduces adjusting time and ensures accuracy of alignment.

Description

technical field [0001] The invention relates to an automatic gain control method for receiving data in a short-range low-speed wireless network, and belongs to the technical field of wireless communication. Background technique [0002] Automatic gain control is an essential part of modern wireless network digital communication. It is a device that automatically adjusts the amplification factor according to the characteristics of the received signal, so that the maximum value of the analog signal can Close to the full scale of the dynamic range of the A / D conversion, thereby minimizing the quantization error of the A / D conversion. The adjustment accuracy of the automatic gain control algorithm determines whether the analog received signal can be converted into a digital received signal with little distortion, which is a prerequisite for subsequent digital signal processing. [0003] Modern wireless network communication is mostly packet transmission, that is, only one data ...

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 周思源张良杨晨阳胡志建郦亮
Owner BEIJING TRANSPACIFIC IP TECH DEV
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