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

Synthesis Method of Subarray Level Phased Array Antenna Patterns Based on Drosophila Algorithm

A phased array antenna, pattern synthesis technology, applied in antennas, antenna arrays, computing and other directions, can solve the problems of local optimization, many control parameters, easy premature convergence, etc., to improve stability, reduce control parameters, The effect of improving the side lobe suppression capability

Active Publication Date: 2020-04-21
XIDIAN UNIV +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of this method are: moreover, due to the large number of control parameters in this method, it is easy to fall into local optimum and premature convergence due to improper parameter setting in the iterative 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
  • Synthesis Method of Subarray Level Phased Array Antenna Patterns Based on Drosophila Algorithm
  • Synthesis Method of Subarray Level Phased Array Antenna Patterns Based on Drosophila Algorithm
  • Synthesis Method of Subarray Level Phased Array Antenna Patterns Based on Drosophila Algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0044] refer to figure 1 , the steps of the present invention are further described in detail.

[0045] Step 1, establish a phased array antenna model.

[0046] In the xoy coordinate system, the x-axis and the y-axis are used as the sides of the rectangle respectively, according to the total number of array elements on the x-axis and the total number of array elements on the y-axis of the phased array antenna, and the distance between the array elements along the x-axis and y-axis in turn Place the array element to get the rectangular phased array antenna model.

[0047] Step 2, divide the sub-array.

[0048] Using the X algorithm described below, the sub-arrays are divided into the matrix phased array antenna model without overlapping.

[0049] Step 1: For the 8-element L-shaped sub-array, rotate 90 degrees clockwise to obtain four types of sub-arrays, a...

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 sub-array phased array antenna pattern synthesis method based on Drosophila algorithm, which is mainly used for solving the problems that the prior art is prone to have more control parameters in the side lobe suppression process of the sub-array phased array antenna pattern, and is prone to fall into local optimization and premature convergence due to improper control parameters. A sub-array level phased array antenna population is taken as a drosophila population, and the particle collapse-orthogonal cross mechanism is adopted to update the sub-array normalized excitation value of the Drosophila population. The global optimal excitation value and the global optimal fitness value are obtained by an annealing simulation method. The method reduces the control parameters, improves the stability of the side lobe suppression method, and improves the side lobe suppression performance of the sub-array phased array antenna pattern amplitude.

Description

technical field [0001] The invention belongs to the field of antenna radar, and further relates to a sub-array-level phased array antenna pattern synthesis method based on the fruit fly algorithm in the technical field of antenna radar. The invention can be used to suppress the side lobe of the antenna pattern of the sub-array level phased array, thereby improving the performance of the antenna pattern. Background technique [0002] In the phased array antenna system, the side lobe performance of the antenna is one of the most important performance indicators of the system. With the rapid development of the radar antenna system. The radar antenna system puts forward higher requirements on the performance of the phased array antenna, which makes the planar array antenna develop towards large-scale and digitalization. However, due to the limitations of system cost, implementation feasibility and device level, the cost of designing a complete digital receiving channel for each...

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 Patents(China)
IPC IPC(8): G06F30/20G06N3/00H01Q21/00H01Q3/30G06F111/06
CPCG06F30/20G06F2111/06G06N3/006H01Q3/30H01Q21/00
Inventor 李文涛张昱东叶秀眺崔灿史小卫
Owner XIDIAN 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