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

Automatically-registered two-dimensional direction-of-arrival estimation device and method thereof

A technology for direction estimation and automatic registration, which is applied in the directions of space transmit diversity, diversity/multi-antenna systems, etc., and can solve problems such as large amount of calculation

Inactive Publication Date: 2011-08-03
XI AN JIAOTONG UNIV
View PDF0 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing methods using eigenvalue decomposition have the disadvantage of large amount of calculation, and also require an additional parameter pairing process

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
  • Automatically-registered two-dimensional direction-of-arrival estimation device and method thereof
  • Automatically-registered two-dimensional direction-of-arrival estimation device and method thereof
  • Automatically-registered two-dimensional direction-of-arrival estimation device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.

[0035] Such as figure 1 and figure 2 As shown, the device for estimating the two-dimensional direction of arrival with automatic registration includes a rectangular folding rule L-shaped array antenna, which is one end of the linear sub-array antenna 1 equidistant in the longitudinal x direction and the vertical direction z One end of the equidistant linear sub-array antenna 2 is vertically connected to form, wherein the longitudinal x-direction equidistant linear sub-array antenna 1 includes the first longitudinal x-direction antenna elements x arranged equidistantly in pairs along the longitudinal x direction 1 , the second longitudinal x-direction antenna element x 2 ,..., the Mth vertical x-direction antenna element x M It consists of a total of M antenna elements, and the linear sub-array antenna 2 equidistant in the vertical z direction...

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 an automatically-registered two-dimensional direction-of-arrival estimation device and a method thereof. In the method, the pitch angle in an arrival direction is estimated first and then the azimuth angle in the arrival direction is estimated according to the pitch angle by connecting longitudinal x-directional equidistant linear sub-array antennae, vertical z-directional equidistant linear sub-array antennae, a correlation matrix calculation device, a subspace estimation device and an arrival direction estimation device in a communication way, decorrelating an incident signal by utilizing a sub-array averaging technology, and simultaneously obtaining zero space by implementing a linear operation on a cross-correlation matrix of L-array received data. In the method, eigenvalue decomposition does not need to be performed, and the problem of angle matching is avoided.

Description

technical field [0001] The present invention relates to a two-dimensional direction of arrival estimation device and method thereof, in particular to an automatic registration two-dimensional direction of arrival estimation device and method thereof. Background technique [0002] In recent years, research and development on mobile communication systems using adaptive array antennas has received much attention. A typical array antenna includes a plurality of antenna elements, and these antenna elements are arranged at different spatial positions, so that the contours of these antenna elements have specific geometric shapes. Estimating the direction of radio waves reaching the array antenna is one of the most basic and very important techniques. [0003] L-shaped arrays have their unique advantages and strengths in practical applications. Therefore, it is meaningful to study the signal arrival direction based on the L-shaped array. In order to estimate the signal under the ...

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): H04B7/08
Inventor 王光敏辛景民曹祥郑南宁
Owner XI AN JIAOTONG 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