Rapid radar performance assessment method in sea cluster background

A sea clutter and background technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as difficulty in implementation, high computational complexity, and huge computational load.

Inactive Publication Date: 2015-11-11
XIDIAN UNIV
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to obtain the detection blind zone map under the 2/4 criterion, the existing method is to first construct the covariance matrix of the radar echo data according to the conventional space-time clutter

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
  • Rapid radar performance assessment method in sea cluster background
  • Rapid radar performance assessment method in sea cluster background
  • Rapid radar performance assessment method in sea cluster background

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Reference figure 1 , Is a flow chart of the fast radar performance evaluation method under the sea clutter background of the present invention. The fast radar performance evaluation method under the sea clutter background includes the following steps:

[0034] Step 1. Obtain the target's single pulse echo power P according to the airborne radar echo signal s , And then discretize the distance loop corresponding to each range gate of the airborne radar echo signal, and obtain the corresponding clutter block position and clutter block area, and then according to the target single pulse echo power P s , Get the power P corresponding to the i-th clutter block in turn c,i , The covariance matrix R of the k-th Doppler channel of the l-th distance gate l,k , Target normalized adaptive filter weight vector w l,k , And then obtain the output power P of the k-th Doppler channel of the l-th range gate c (l,k), forming the original range Doppler diagram; where I represents the number of...

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 rapid radar performance assessment method in a sea cluster background. The main idea is as follows: through performing Doppler frequency discretization on distance rings corresponding to distance gates of airborne radar echo signals, corresponding cluster block positions and a cluster block area are obtained, after single-pulse echo power of a target is obtained according to the airborne radar echo signals, cluster block power is calculated, based on this, a covariance matrix of the radar echo signals is constructed, an original distance Doppler graph is formed, accordingly, an expanded distance Doppler graph is obtained, then after the output signal-to-noise ratio of the position of the target is calculated when the target position changes, a detection blind area graph under the condition of multiple single repeated pulse frequencies is obtained, accordingly, a detection blind area graph under a 2/4 criterion is formed, according to the detection blind area graph under the 2/4 criterion, the maximum detection distance and the minimum detectable speed of the target are obtained when an airborne radar cross section is determined, and accordingly, whether the performance of an airborne radar meets design requirements is determined.

Description

Technical field [0001] The invention belongs to the technical field of radar performance evaluation, and particularly relates to a rapid radar performance evaluation method under the background of sea clutter, and is suitable for rapid evaluation of radar performance under the background of sea clutter. Background technique [0002] The radar performance evaluation method can effectively evaluate the working ability of the radar system, provide guarantee for the real-time, reliability and accuracy of the radar echo data, and can help to set the parameters of the radar system to achieve the optimal performance of the radar system under actual conditions The accuracy of radar performance evaluation is also related to the success or failure of radar system design. [0003] The radar performance can be evaluated by using a detection blind zone map. From the detection blind zone map, the maximum detection range and minimum detectable speed of the radar system can be obtained, and then w...

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): G01S7/40
CPCG01S7/40
Inventor 王彤任鹏丽吴建新同亚龙
Owner XIDIAN UNIV
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