Search for dissertations about: "C-Band"
Showing result 1 - 5 of 31 swedish dissertations containing the word C-Band.
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1. Design of High Linearity MMIC Power Amplifiers for Space Applications
Abstract : The high linearity performance in satellite transmitters is receiving increasing attention due to the demands of higher data rates in satellite communication links. During the last decade, digital communication links in satellite system have been replacing the previous analog links increasing the channel efficiency by allocating multiple carriers in the transponder bandwidth. READ MORE
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2. Characterisation of boreal forests and urban areas using ERS InSAR Coherence
Abstract : .... READ MORE
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3. Temporal Characteristics of Boreal Forest Radar Measurements
Abstract : Radar observations of forests are sensitive to seasonal changes, meteorological variables and variations in soil and tree water content. These phenomena cause temporal variations in radar measurements, limiting the accuracy of tree height and biomass estimates using radar data. READ MORE
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4. Spaceborne SAR in Sea Ice Monitoring: Algorithm Development and Validation for the Baltic Sea
Abstract : The usefulness of new spaceborne synthetic-aperture radar (SAR) sensors at L-, C-, and X-band for operational sea ice monitoring in the Baltic Sea has been evaluated. It is concluded that the information content in C-band and X-band data is largely equivalent, although larger spatial coverage is an advantage of the current C-band satellites. READ MORE
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5. Low Noise SIS Mixers and Cryogenic Amplifiers for Sub-Millimeter Astronomy
Abstract : This PhD thesis presents the work that was done developing radioastronomy instrumentation. The first part of this work deals with 2-stage low-noise cryogenic amplifiers using commercial GaAs HEMT transistors for frequency bnads: 3.4-4.6 GHz, 4-8 GHz and 8-9 GHz. READ MORE