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[1]胡炜,李敬轩,杨立军,等.不完全角度背景纹影层析测量综述[J].火箭推进,2024,50(06):1-26.[doi:10.3969/j.issn.1672-9374.2024.06.001]
　HU Wei,LI Jingxuan,YANG Lijun,et al.Review of incomplete-angle background-oriented schlieren tomography[J].Journal of Rocket Propulsion,2024,50(06):1-26.[doi:10.3969/j.issn.1672-9374.2024.06.001]
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不完全角度背景纹影层析测量综述

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 50 期数: 2024年06期 页码: 1-26 栏目: 目次 出版日期: 2024-12-25
Title:
Review of incomplete-angle background-oriented schlieren tomography
文章编号:
1672-9374(2024)06-0001-26
作者:
胡炜1; 2; 李敬轩1; 2; 杨立军1; 2; 张玥2; 梁炫烨2
1.北京航空航天大学 宁波创新研究院,浙江 宁波 315800; 2.北京航空航天大学 宇航学院,北京 100191
Author(s):
HU Wei1; 2; LI Jingxuan1; 2; YANG Lijun1; 2; ZHANG Yue2; LIANG Xuanye2
1.Ningbo Institute of Technology, Beihang University, Ningbo 315800, China; 2.School of Astronautics, Beihang University, Beijing 100191, China
关键词:
背景纹影;  层析技术;  三维重构;  不完全角度;  欠定病态方程
Keywords:
background-oriented schlieren;  tomographic technique;  three-dimensional reconstruction;  incomplete angle;  ill-posed inverse problem
分类号:
TK311
DOI:
10.3969/j.issn.1672-9374.2024.06.001
文献标志码:
A
摘要:
实现对非定常流动的三维测量一直是航空航天、能源环境、燃烧诊断等领域的研究重点。背景纹影法是近20年来兴起的一种新型流场测量技术,仅需相机和背景就能动态测量非定常流场,具有大视野、高频动态、低成本、好测量的优势。受空间、成本限制可用的测量光路并不多,背景纹影只能在有限角度内稀疏采集。对不完全角度背景纹影层析测量技术的应用现状和发展进行综述:首先介绍背景纹影成像及层析测量的基本原理和测量系统,分析当前背景层析测量中面临的不完全角度问题; 其次回顾近年来所发展的不完全角度背景纹影层析重建算法; 最后对背景纹影层析测量技术的发展提出展望,认为利用压缩感知和其他非端到端式深度学习等理论,结合丰富的先验信息和其他层析技术,可以为不完全角度背景纹影层析重建问题的解决提供新思路。
Abstract:
The three-dimensional measurement of unsteady flow has always been a research focus in fields such as aerospace, energy and environment, and combustion diagnostics. The background-oriented schlieren(BOS)technique has emerged as a novel method for measuring flow dynamics in the past two decades. It allows for the dynamic measurement of unsteady flow using just a camera and a background, offering advantages such as a wide field of view, high-frequency dynamics, cost-effectiveness, and ease of use. However, due to spatial and cost constraints, the available optical paths for BOS are limited, resulting in the sparse collection of background patterns within a restricted angle. This article provides a comprehensive overview of the current status and development of incomplete-angle BOS tomography. It begins by introducing the fundamental principles of BOS imaging and tomographic reconstruction, along with the measurement systems, while analyzing the current incomplete-angle issue encountered in BOS tomographic measurements. Furthermore, it reviews the algorithms for incomplete-angle BOS tomography developed in recent years and concludes by outlining prospects for the future advancement of BOS tomography. It is suggested that leveraging theories such as compressed sensing and other non-end-to-end deep learning approaches, along with rich prior information and other tomographic techniques, could offer new avenues for addressing the reconstruction challenges in the context of incomplete-angle BOS tomography.

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备注/Memo

收稿日期:2023- 12- 26修回日期:2024- 01- 29
基金项目:国家自然科学基金(11927802); 中国博士后科学基金(2023M730168)
作者简介:胡 炜(1994—),女,博士,副研究员,研究领域为背景纹影技术及其在燃烧测量的应用。
通信作者:李敬轩(1984—),男,教授,研究领域为不稳定燃烧的预测、测量和控制。

更新日期/Last Update: 1900-01-01