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

Variable data rate tracking method of rotary phased array radar based on target prior parameters

A priori parameter and rotation phase technology, applied in the direction of radio wave reflection/re-radiation, using re-radiation, measuring devices, etc., can solve target loss of tracking, waste of time and resources of distant targets, and no consideration of target prior parameters and the current situation and other issues, to achieve the effect of less time resources and less cost

Pending Publication Date: 2022-04-12
THE 724TH RES INST OF CHINA SHIPBUILDING IND
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the traditional adaptive resource optimization allocation method, the tracking data rate is calculated according to the residual, without considering the prior parameters of the target and the current situation. The target will cause loss of tracking, and it will cause waste of time and resources for distant targets. This invention proposes a resource optimization allocation algorithm based on target prior parameters to be applied to rotating phased array radar target tracking

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
  • Variable data rate tracking method of rotary phased array radar based on target prior parameters
  • Variable data rate tracking method of rotary phased array radar based on target prior parameters
  • Variable data rate tracking method of rotary phased array radar based on target prior parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Cartesian coordinate system (x m (n),y m (n),z m (n)) The measurement value cannot be obtained directly, because the radar measurement is done in spherical coordinates (set the true north direction as 0°, and the azimuth goes clockwise from 0° to 360°), and the measurement equation is a linear equation in the spherical coordinate system , is a nonlinear equation in the Cartesian coordinate system. The target motion equation is described in the Cartesian coordinate system, and the measured values ​​in the spherical coordinates need to be converted to the Cartesian coordinate system and then processed by the α-β filter algorithm.

[0032] Without loss of generality, assuming that the rotational speed of the antenna is 30rpm, the possible tracking points of antenna cycle 1 are A, B, and C, and the possible tracking points of antenna cycle 2 are D, E, and F. Due to the limitations of antenna rotation and electronic beam offset scanning, The offset scan of phased array ra...

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 relates to a variable data rate tracking method of a rotating phased array radar based on target prior parameters, which is characterized in that the rotating phased array radar is limited by antenna area array rotation and electronic beam offset, when a target is located on the back of an antenna area array, the beam of the radar cannot irradiate the target, each antenna period has a window period of target tracking, and the target is tracked in the window period. Therefore, the residual error-based adaptive tracking resource allocation algorithm capable of continuously valuing is not suitable for the rotary phased array radar. On the basis of Cohen research, a variable data rate tracking method based on target priori parameters is provided and applied to rotating phased array radar target tracking, the maximum tracking residual error generated by target maneuvering of a target at the current distance is calculated in real time based on the priori parameters of the target, including the maximum maneuvering acceleration and the maximum navigational speed of the target, and the maximum tracking residual error generated by target maneuvering of the target at the current distance is calculated in real time. According to the method, the coverage of the tracking beam width of the radar on the target is ensured, the maximum tracking data rate is calculated, and the minimum tracking resource is used on the premise of considering the target tracking stability.

Description

technical field [0001] The invention relates to a method for optimally allocating tracking task resources of a rotating phased array radar. Background technique [0002] Phased array radar uses an array antenna with beam agility, which can perform various tasks such as search, target tracking, and guidance. Optimal scheduling of resource usage. The optimization of phased array radar resource scheduling mainly involves three directions: [0003] 1. Task conflict resolution: If multiple heterogeneous tasks compete for the same time slice resource, based on the task time window and priority under the constraints of scheduling policies, various adaptive beam scheduling algorithms are used to make the system execute as many tasks as possible within a limited time . Priority-based scheduling methods mainly include earliest deadline first (EDF for short), least slack first (LSF for short), earliest release top priority, earliest deadline first top priority, and highest value St...

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): G01S13/72
Inventor 李纪三吴少鹏耿利祥张海龙程玉堃
Owner THE 724TH RES INST OF CHINA SHIPBUILDING IND
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com