An integrated millimeter wave radar system for the measurement of particle streams

用于测量颗粒流的集成毫米波雷达系统

• 批准号: 495198532
• 负责人: Professor Dr.-Ing. Michael Höft
• 金额: --
• 依托单位: Lehrstuhl für Hochfrequenztechnik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/495198532?language=en
• 关键词: integrated; millimeter; wave; radar; system

The characterization of particle streams is important in different areas. A central topictoday is the high level of particulate matter in cities, which is largely caused by combustion processes in industry, traffic and households. Particles with an aerodynamic diameter of no more than 10 micrometres (PM10) are classified as particulate matter. In addition to local atmospheric particulate matter controls (e.g. at traffic junctions), it makes sense to carry out emission controls (e.g. at chimneys) directly at the source of the particulate matter in order to be able to intervene in a regulating manner already at the generation stage. Another important field of application is industrial process analysis, in which the metrological recording of smoke development or flow rate, for example, can be used for process optimization and control. Among other possible applications, volcanic research is also a conceivable scenario in which the resulting ash clouds are to be investigated with regard to their particle concentration and composition. Various measuring methods exist, each of which has advantages and disadvantages for certain applications. This proposal deals both in theory and in practice with sensors based on radar technology with integrated circuits in the high-frequency millimetre wave range at approx. 94 GHz and 300 GHz, which are able to characterize aerosol flows with regard to particle mass charge, particle velocity, mass flow rate, particle size and particle type. New concepts for multistatic operation using newly developed integrated circuits at 300 GHz will be investigated and experimentally tested. Based on the investigation of the scattering behaviour of particle streams, the aim is to find the optimal conditions for the arrangement of transmitter and receiver elements. In addition, new, powerful MMIC radar sensors based on silicon-germanium technology at 300 GHz are to be developed, which will be coupled together for coherent multistatic operation.

粒子流的表征在不同区域很重要。中央目录是城市中高水平的颗粒物，这在很大程度上是由行业，交通和家庭中的燃烧过程引起的。空气直径不超过10微米（PM10）的颗粒被归类为颗粒物。除了局部大气颗粒物的控制（例如在交通连接处）外，直接在颗粒物质来源进行排放控制（例如在烟囱）也有意义，以便能够在生成阶段以调节方式进行干预。应用的另一个重要领域是工业过程分析，其中烟气发育或流量的计量记录可用于过程优化和控制。在其他可能的应用中，火山研究也是一种可以想象的情况，其中应研究其颗粒浓度和组成。存在各种测量方法，每种方法都具有某些应用程序的优点和缺点。该提案在理论上和实践中都与基于雷达技术的传感器进行处理，并在高频毫米波范围内进行集成电路。 94 GHz和300 GHz能够表征颗粒质量，颗粒速度，质量流速，粒径和粒子类型的气溶胶流动。将研究并测试新开发的300 GHz集成电路的多阶段操作概念。基于对粒子流的散射行为的研究，目的是找到发射机和接收器元素排列的最佳条件。此外，还将开发基于300 GHz的硅阵线技术的新型，功能强大的MMIC雷达传感器，将共同开发，该传感器将耦合在一起以进行连贯的多态操作。