Essays about: "spectral matching"

Showing result 1 - 5 of 18 essays containing the words spectral matching.

1. 1. Detecting Lithium Brine in Afghanistan Using Spaceborne Hyperspectral Data

   University essay from Göteborgs universitet/Institutionen för geovetenskaper

   Author : Torpikay Azizi; [2023-08-18]
   Keywords : PRISMA Hyperspectral data; lithium mineral deposits; lithium brine-rich deposits; Dashti-e- Nawar; boron deposits; Principal Component Analysis PCA ; supervised and unsupervised classification; spectral matching; spectral profile analysis; visible-near-infrared VNIR ; short-wave infrared SWIR Gypsum; Hectorite; Kaolinite; Lepidolite; lithium carbonate; lithium chloride;

   Abstract : The purpose of this thesis is to utilize hyperspectral remote sensing technology for the identification and evaluation of lithium mineral deposits in Afghanistan. Afghanistan boasts unique geological formations with substantial potential for lithium resources beneath its land crust. READ MORE

3. 2. Spectral broadening of 4 mJ femtosecond pulses using a bulk multi-pass cell

   University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Author : Saga Westerberg; [2023]
   Keywords : Lasers; Ultrashort; Nonlinear Optics; femtosecond; Multi-Pass Cell; Spectral broadening; pulse post-compression; Self phase modulation; Physics and Astronomy;

   Abstract : Nonlinear optical effects can be used for spectral broadening, which the basis of the field of post-compression of laser pulses. When the intensity of light becomes high enough the refractive index becomes intensity dependent, and as the intensity often varies both with position and time so does the refractive index. READ MORE

4. 3. Optical properties of water absorbing textiles for camouflage

   University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

   Author : Eveline Örtenberg; [2023]
   Keywords : Camouflage; SWIR; Water; Nanocellulose; CNF; Textiles;

   Abstract : Background matching, a form of camouflage, involves species developing patterns and coloration that closely resemble their environment. Humans have utilized camouflage and background matching, particularly in military applications, to reduce detectable characteristics, known as signatures. READ MORE

5. 4. Faster than Nyquist Signaling with Spatial Coupling

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Haoran Liu; Lingwei Zhang; [2022]
   Keywords : Technology and Engineering;

   Abstract : The emergence of the Faster-Than-Nyquist signaling (FTN) technology has im- proved the tight spectrum resources by compressing the transmission interval between adjacent pulses. In a natural environment, data transmission via a wire- less medium and through multi-path, at a high data rate, the leakage of these paths among symbols can cause severe inter-symbol interference (ISI). READ MORE

6. 5. Level 1 processing  algorithms of MicroCarb  microsatellite : Performance assessment of ISRF in-flight estimation through new algorithms

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Quentin Taupin; [2021]
   Keywords : ;

   Abstract : Facing global warming and its dramatic consequences, it is now of the utmost urgency to improve our understanding of the carbon cycle mechanisms through which global climate change unfolds. The MicroCarb mission will allow to accurately monitor CO2 global sources and sinks over the entire surface of the Earth. READ MORE