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光电信息大讲堂第211期：Silicon-Based Mm-Wave Circuit Techniques for Communication and Radar
毫米波芯片 硅基工艺 通信芯片
2023/4/17
毫米波具有丰富的频率资源，已逐步应用于高速通信和高精度雷达等领域。但由于硅基工艺本身的限制，采用硅基工艺实现毫米波芯片面临巨大的技术挑战。本报告讨论了硅基毫米波芯片技术的发展以及所面临的技术挑战，介绍了本课题组在解决宽带收发链路、高精度毫米波信号源和相控阵等方面的工作，并简要介绍了本课题组开发的毫米波雷达与通信芯片。
DECOMPOSITION TECHNIQUES FOR ICESAT/GLAS FULL-WAVEFORM DATA
ICESat/GLAS Full-Waveform Waveform Decomposition Method Overlapped Echo Components Levenberg-Marquard (LM) Optimization Method
2018/5/15
The geoscience laser altimeter system (GLAS) on the board Ice, Cloud, and land Elevation Satellite (ICESat), is the first long-duration space borne full-waveform LiDAR for measuring the topography of ...
COMPARISON OF TECHNIQUES FOR TERRESTRIAL LASER SCANNING DATA GEOREFERENCING APPLIED TO 3-D MODELLING OF CULTURAL HERITAGE
Cultural Heritage Documentation, Georeferencing, Visualization, Terrestrial Laser Scanning
2015/10/8
The paper is deals with the application of terrestrial laser scanning for the generation of a 3D model of the historical settlement of
San Pietro al Monte in Civate (Lombardia, Italy). In the first ...
3D MODELING OF COMPLEX ARCHITECTURE INTEGRATING DIFFERENT TECHNIQUES – A CRITICAL OVERVIEW
Terrestrial Laser Scanner Close Range Photogrammetry Architectonical Survey
2015/10/8
The laboratory of survey, photogrammetry, cartography and GIS of the Politecnico of Milano has reached in these years a good
experience in the field of architectural survey, representation and 3D mo...
COMPARISON OF CLUSTERING TECHNIQUES APPLIED TO LASER DATA
LIDAR First and Last Pulse data Clustering Quality assessment Unsupervised learning Feature Extraction
2015/7/29
During the last decade airborne laser scanning has become a mature technology which is now widely accepted for 3D data collection.
Automated processes employ the scanned laser data and the platform ...
Airborne Laser Scanning and Image Processing Techniques for Archaeological Prospection
Digital terrain model non-invasive archaeology DTM shaded relief LiDAR
2014/7/30
Aerial photography was, for decades, an invaluable tool for archaeological prospection, in spite of the limitation of this method to deforested areas. The airborne laser scanning (ALS) method can be n...
Ultra-wideband radio-over-fiber techniques and networks
Fiber optics ptical communications Radio frequency photonics
2015/6/8
This paper summarizes the motivations and results obtained regarding the optical distribution of a 60GHz radio signal throughout buildings to provide users with Ultra-Broad-Band Wireless Home Area Net...
High Definition X-Ray Fluorescence: Principles and Techniques
High Definition X-Ray Fluorescence Principles Techniques
2009/9/4
Energy dispersive X-ray fluorescence (EDXRF) is a well-established and powerful tool for nondestructive elemental analysis of virtually any material. It is widely used for environmental, industrial, p...
Sensitivity of Interferometric OSNR Measurements Techniques to the Variation in Signal Extinction Ratio
Sensitivity Interferometric OSNR Measurements Techniques Variation Signal Extinction Ratio
2015/7/31
We discuss calibration requirements for interferometric OSNR measurements. We show that variation of 0.25dB in the signal extinction ratio could result in large errors in OSNR for 42.8Gb/s modulated s...
Optical Performance Monitoring Techniques;Current Status and Future Challenges
Optical Performance Monitoring Techniques Current Status Future Challenges
2015/7/30
The optical performance monitoring technique is of critical importance for the continual advancement of dynamic WDM networks. This paper reviews its current status and future challenges.