Method and system for finding direction of target source of array signal

An array signal and direction finding system technology, applied in the field of target source direction finding of array signals, can solve the problems of complex algorithm, estimation error related to target direction and signal-to-noise ratio, long calculation time, etc. Signal processing cost, effect of low reconstruction error

Inactive Publication Date: 2015-03-11
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adaptive spatial filtering is a familiar beamforming technology that has been widely used in engineering. The disadvantage of this type of method is that its estimation error is related to the target direction and signal-to-noise ratio.
Spatial spectrum estimation is an emerging technology combined with the former. In theory, it can greatly improve the

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
  • Method and system for finding direction of target source of array signal
  • Method and system for finding direction of target source of array signal
  • Method and system for finding direction of target source of array signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0026] In the following description, firstly, an embodiment of the method for finding the direction of the target source of the array signal of the present invention will be described, and then various embodiments of the system for finding the direction of the target source of the array signal of the present invention will be described.

[0027] see figure 1 As shown, it is a schematic flowchart of an embodiment of the method for finding the direction of a target source of an array signal according to the present invention. Such as figure 1 As shown, the target source ...

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 provides a method and a system for finding a direction of a target source of an array signal. The method comprises the following steps: performing signal sampling on the array signal to be detected to obtain a sampling matrix of the array signal, and acquiring a preset base matrix and a regularization parameter; performing singular value decomposition on the sampling matrix to obtain observation data, transferring the observation data into a signal subspace to obtain a target matrix; determining a target source direction of the array signal according to the target matrix, the base matrix, the regularization parameter and a preset direction finding equation set. According to the scheme, the target source direction finding of a high-dimensional signal can be abstracted into solution of underdetermined system of equations, so that effects of lower reconstruction error and higher success rate can be achieved within a larger signal-to-noise ratio range, and signals with higher correlation can be identified.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a target source direction finding method and system for array signals. Background technique [0002] In the field of signal processing, array signal processing is a very important branch. Array signal processing is to use multiple sensors placed in different positions to extract the signal received by the array signal and its useful information. Faced with more and more high-dimensional signal processing problems, the theory of compressed sensing has gradually developed, so the theory of compressed sensing is widely used in high-dimensional signal processing problems. Compressed sensing theory is a theory of sampling and reconstruction based on sparse signals, and its core technology is sparse signals. Sparse representation is to decompose a given signal on redundant bases according to the structural characteristics of the signal, and adaptively select a small number ...

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): G01S3/12
CPCG01S3/12
Inventor 李溢杰施展李财云蒋康明郭少勇何杰黄远丰汪莹卢润华袁志坚
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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