Global ETD Search
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Showing 1 to 4 of 4 for “"broadband measurements"”.
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Development and Characterization of a Novel, Low-Cost Method for Measurement of Volatile Organic Compounds
Measurements of atmospheric pollutants are crucial for improving our understanding of atmospheric chemistry, managing air quality, and estimating exposure to compounds that have profound impacts on human health. Low cost sensors (LCS), due to order-of-magnitude reductions in power usage, …
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Midlatitude D Region Variations Measured from Broadband Radio Atmospherics
<p>The high power, broadband very low frequency (VLF, 3--30 kHz) and extremely low frequency (ELF, 3--3000 Hz) electromagnetic waves generated by lightning discharges and propagating in the Earth-ionosphere waveguide can be used to measure the average electron density profile of the lower …
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Analysis of the spatial heterogeneity of land surface parameters and energy flux densities
… spatial and temporal resolutions and in-situ measurements. The investigations were carried out for two target areas in Germany. First, satellite data for the years 2002 and 2003 were analysed and validated from the LITFASS-area (Lindenberg Inhomogeneous Terrain - Fluxes between Atmosphere and …
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Anténní měřící systém pro malé družice
Cieľom práce je návrh a realizácia meracieho systému pre meranie veľkosti činiteľa odrazu pripojených antén v rozsahu 27-2500 MHz. Za vhodnú metódu merania je zvolené meranie pomocou rezistívneho mostíka. Systém pozostáva z elektronického zariadenia riadeného mikrokontrolérom rady STM32WB a …