Research into a least multipath based wireless local positioning technique for massive MIMO systems in extreme multipath conditions
极端多径条件下大规模MIMO系统基于最少多径的无线本地定位技术研究
基本信息
- 批准号:468715998
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:
- 资助国家:德国
- 起止时间:
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
In future wireless communication networks (5G, 6G, etc.), massive MIMO systems increase the achievable data rate. Since the achievable data rate depends on the independence of the spatially recorded information (spatial diversity), large antenna arrays are favorable. In this project, the spatial diversity of Massive MIMO systems is used to enable exact indoor localization even under extreme multipath conditions. While UWB systems attempt to isolate the direct path from the multipath propagation by increasing the bandwidth, the impulse responses of the line of sight (LOS) and the multipath propagation overlap in localization systems with limited bandwidth. Therefore, a LOS identification, which is solely based on the evaluation of a single path, is not possible. Hence, in this project the spatial diversity of Massive MIMO systems is used to separate the common LOS of all receive paths from the superimposed multipath propagation, which decorrelates with increasing antenna distance. For this purpose, a least multipath metric is developed to replace the commonly established least squares metric. Here, the aim is to estimate the multipath propagation, remove it from the signal, and thereby, drastically improve the localization accuracy. For this purpose, the receive channel of each antenna is superimposed by an individual hypothetical multipath channel during the measurement evaluation. While the LOS path at each receiver directly depends on the transmitter’s position, the multipath propagation towards all receivers differ and are sparse, because they are caused by few reflections at the environment. Hence, at the correct transmitter position, the remaining receive signal can be described with only little further multipath propagation, whereas at an incorrectly assumed transmitter position, the LOS path has to be described using additional multipath propagation. According to the compressed sensing theory, the multipath propagation can then be estimated with a small L1 norm at the correct transmitter position. Hence, the least multipath position estimation is performed by a simultaneous minimum search of both the transmitter position and the corresponding multipath propagation. Since the evaluation of the receive channels’ relative phase information is increasing the resolution of the transmitter position, the LOS paths can now be separated from the multipath propagation. Vice versa, the effect of the multipath propagation is simultaneously subtracted from the evaluated phases and hence, the localization accuracy increases. Equally important to the novel localization concept, an equivalent calibration concept will be investigated. For this purpose, again the proposed least multipath metric will be used. The novel calibration and localization concept will be validated by measurements using a unique massive MIMO array, which is already available at the LHFT.
在未来的无线通信网络(5G、6G等)中,大规模MIMO系统提高了可实现的数据速率。由于可实现的数据速率取决于空间记录信息的独立性(空间分集),因此大型天线阵列是有利的。在这个项目中,大规模MIMO系统的空间分集被用来在极端多径条件下实现精确的室内定位。虽然超宽带系统试图通过增加带宽来隔离直接路径与多径传播,但在带宽有限的定位系统中,视线(LOS)的脉冲响应和多径传播重叠。因此,仅仅基于单个路径的评估的LOS识别是不可能的。因此,本课题利用Massive MIMO系统的空间分集将所有接收路径的共同LOS从叠加的多径传播中分离出来,并随着天线距离的增加而去相关。为此,提出了一种最小多径度量来代替常用的最小二乘度量。在这里,目标是估计多径传播,从信号中去除它,从而大大提高定位精度。为此,在测量评估期间,每个天线的接收信道由单个假设的多径信道叠加。虽然每个接收机的LOS路径直接取决于发射机的位置,但朝向所有接收机的多路径传播是不同的,并且是稀疏的,因为它们是由很少的环境反射引起的。因此,在正确的发射机位置,剩余的接收信号只需要少量的多径传播就可以描述,而在错误假设的发射机位置,必须使用额外的多径传播来描述LOS路径。根据压缩感知理论,可以在正确的发射机位置用较小的L1范数估计多径传播。因此,通过同时对发射机位置和相应的多径传播进行最小搜索来进行最小多径位置估计。由于接收信道相对相位信息的评估增加了发射机位置的分辨率,LOS路径现在可以从多径传播中分离出来。反之,多径传播的影响同时从评估相位中扣除,因此,定位精度提高。与新的定位概念同样重要的是,一个等效的校准概念将被研究。为此,将再次使用建议的最小多路径度量。新的校准和定位概念将通过使用独特的大规模MIMO阵列进行测量来验证,该阵列已经在LHFT上可用。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Professor Dr.-Ing. Martin Vossiek其他文献
Professor Dr.-Ing. Martin Vossiek的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Professor Dr.-Ing. Martin Vossiek', 18)}}的其他基金
Investigating new approaches for narrowband but nevertheless high-precision wireless locating in multipath environments by means of iterative recursive non-linear state estimation techniques based on aperture synthesis and phase difference analysis in ant
基于ant中孔径合成和相位差分析的迭代递归非线性状态估计技术,研究多路径环境中窄带但高精度无线定位的新方法
- 批准号:
450697408 - 财政年份:2021
- 资助金额:
-- - 项目类别:
Research Grants
Developing a multifunctional, wireless sensor system for monitoring the process parameters during the production of carbon-fiber reinforced composites
开发多功能无线传感器系统,用于监测碳纤维增强复合材料生产过程中的工艺参数
- 批准号:
417571210 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Research Grants
Fundamental Research on Polarimetrically Coded Radar Barcodes
偏振编码雷达条码的基础研究
- 批准号:
398549671 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grants
Hybrid Primary and Secondary Radar Concepts for 6D Wireless Locating and Multi-Perspective Imaging for Cooperative Mobile Systems
用于协作移动系统的 6D 无线定位和多视角成像的混合主次雷达概念
- 批准号:
389508242 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grants
Fundamental research towards high-precision wireless local positioning systems
高精度无线本地定位系统基础研究
- 批准号:
316893654 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Research Grants
Development of a wireless, multifunctional sensor system for the acquisition of process parameters during the manufacture of composites.
开发无线多功能传感器系统,用于在复合材料制造过程中采集工艺参数。
- 批准号:
225847294 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Research Grants
Components and Concepts for low-power mm-wave pulsed angle modulated ultra wideband (UWB) communication and ranging
低功耗毫米波脉冲角度调制超宽带 (UWB) 通信和测距的组件和概念
- 批准号:
80872641 - 财政年份:2009
- 资助金额:
-- - 项目类别:
Priority Programmes
Fundamental investigations concerning the analysis, detection, and compensation of calibration errors in MIMO radar and MIMO SAR imaging systems
有关 MIMO 雷达和 MIMO SAR 成像系统中校准误差的分析、检测和补偿的基础研究
- 批准号:
506408783 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
New methodologies for analytically modelling and compensation of phase noise based distortions in continuous wave radar
连续波雷达中基于相位噪声的失真分析建模和补偿的新方法
- 批准号:
440304272 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
相似海外基金
Seamless integration of Financial data into ESG data
将财务数据无缝集成到 ESG 数据中
- 批准号:
10099890 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Collaborative R&D
MARVEL-ous Extracellular vesicles carry RXLR effectors into host plant cells
MARVEL-ous 细胞外囊泡携带 RXLR 效应子进入宿主植物细胞
- 批准号:
BB/Y002067/1 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Research Grant
Electro-fermentation process design for efficient CO2 conversion into value-added products
电发酵工艺设计可有效地将二氧化碳转化为增值产品
- 批准号:
EP/Y002482/1 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Research Grant
Integrating Self-Regulated Learning Into STEM Courses: Maximizing Learning Outcomes With The Success Through Self-Regulated Learning Framework
将自我调节学习融入 STEM 课程:通过自我调节学习框架取得成功,最大化学习成果
- 批准号:
2337176 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Standard Grant
Collaborative Research: AGEP ACA: An HSI R2 Strategic Collaboration to Improve Advancement of Hispanic Students Into the Professoriate
合作研究:AGEP ACA:HSI R2 战略合作,以提高西班牙裔学生进入教授职位的水平
- 批准号:
2343235 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Standard Grant
NSF Convergence Accelerator track L: Translating insect olfaction principles into practical and robust chemical sensing platforms
NSF 融合加速器轨道 L:将昆虫嗅觉原理转化为实用且强大的化学传感平台
- 批准号:
2344284 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Standard Grant
HSI Implementation and Evaluation Project: Blending Socioeconomic-Inclusive Design into Undergraduate Computing Curricula to Build a Larger Computing Workforce
HSI 实施和评估项目:将社会经济包容性设计融入本科计算机课程,以建立更大规模的计算机队伍
- 批准号:
2345334 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Continuing Grant
CAREER: Branched Amphiphilic Peptide Capsules (BAPCs) for the delivery of lethal dsRNA into invasive organisms
事业:分支两亲肽胶囊 (BAPC) 用于将致命的 dsRNA 传递到入侵生物体中
- 批准号:
2340070 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Continuing Grant
A genome wide investigation into the roles of error-prone polymerases during human DNA replication
对易错聚合酶在人类 DNA 复制过程中的作用进行全基因组研究
- 批准号:
24K18094 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Early-Career Scientists
Bridging Economic Demands with Social Responsibility: A Deep Dive into SMFDI's Production-Driven CSR Initiatives
连接经济需求与社会责任:深入探讨 SMFDI 的生产驱动型企业社会责任计划
- 批准号:
24K20993 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Early-Career Scientists