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

High-precision wireless channel test bench based on virtual antenna array and method thereof

A virtual antenna and wireless channel technology, applied in wireless communication, communication channel monitoring, transmission monitoring, etc., can solve the problems of low sensitivity, time-consuming post-processing, slow switching speed of antenna array, etc., and achieve good real-time performance and high accuracy The effect of saving data storage time

Inactive Publication Date: 2010-02-24
TONGJI UNIV
View PDF0 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve many disadvantages of the existing platform, such as slow switching speed of the antenna array, high complexity of channel analysis, low channel analysis accuracy due to time-consuming post-processing, and the use of multiple antennas for transmission and reception. To solve the problems of high cost and low sensitivity, a high-precision wireless channel test platform and method based on virtual antenna array is provided to improve switching speed and increase measurement 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
  • High-precision wireless channel test bench based on virtual antenna array and method thereof
  • High-precision wireless channel test bench based on virtual antenna array and method thereof
  • High-precision wireless channel test bench based on virtual antenna array and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Embodiment: test the MIMO channel characteristics of 10*10 under the 10MHz bandwidth of high-speed mobile situation, select the vector signal generator of 10MHz to generate the signal of 10MHz, transmit to the receiver through the beam scanning antenna, and the receiving end transfers the received radio frequency signal to The baseband signal is then completely collected by an acquisition card with an acquisition rate of 20Msample / s and the 10MHz signal is stored immediately. For the work of the antenna part, to measure a 10*10 MIMO channel, it is necessary to switch the transmitting antenna scanning 10 times within the channel coherence time. Every time the transmitting antenna is switched (it can be assumed to be switched within a horizontal range of 120 degrees), the receiving antenna Scanning switches 10 times (it can be assumed to be switched within a horizontal range of 120 degrees), that is, controlling the voltage of the receiving antenna needs to be switched lin...

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 high-precision wireless channel test bench based on a virtual antenna array and a method thereof. An antenna system adopts the virtual antenna array technology based on an electronic control wave beam scanning antenna, adjusts the wave beam direction of the antenna wave beam in a horizontal zone and a vertical zone by a voltage control signal, adjusts the physical position of the antenna by a rotation controller, measures the airspace in a scanning mode, collects actual-measurement channel response and obtains the fine grain characteristic of the channel in the time domain and the airspace so as to provide effective parameter for practical channel analysis and modeling. The invention improves the switching speed of the antenna array and increases the accuracy of channel test.

Description

technical field [0001] The invention belongs to the field of broadband wireless communication, and relates to a wireless channel test platform, especially for the design and optimization requirements of the next-generation broadband mobile communication system, and can be widely used in high-precision and multi-dimensional testing of multiple transmission and multiple reception (MIMO) wireless transmission channels and modeling. Background technique [0002] The future broadband wireless communication network will be able to provide higher capacity, larger coverage and faster data transmission rate. At the same time, people's research on wireless channels is getting more and more in-depth. Developing a reasonable MIMO wireless channel model to simulate various actual channel environments is the starting point for evaluating the performance of existing space-time processing algorithms and the premise of developing more robust space-time processing algorithms. It is also the s...

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
IPC IPC(8): H04W24/00H04B17/00H04B17/30
Inventor 刘富强尹学锋周毅田力
Owner TONGJI UNIV
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