4 pages matching scene antenna in this book
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1/f noise antenna radiometric temperature balanced Dicke bandwidth cold-sky antenna conceptual radiometer design configuration is illustrated constant temperature enclosure detection radiometer receiver Dicke radiometer system direct detection radiometer direct detection receiver dissipative losses double sideband homodyne Effective input noise effects of mismatch ERROR ANALYSIS error sources feed horn gain variations hot load induced gain fluctuations injected noise input noise temperature internal calibration technique Langley Research Center low Earth orbit low noise amplifiers Microwave Radiometer mixer noise figure noise injection radiometer noise power non-thermal induced gain NUMBER Old Dominion University output voltage physical temperature power spectral density preamplifier radiometer design study radiometer receiver configuration radiometer system configuration Radiometer system performance radiometric antenna temperature radiometric brightness temperature reference load reflection coefficients RF frequency Root Sum Square scene antenna signal processor portion single sideband heterodyne square law detector total power radiometer TRAD unbalanced Dicke radiometer Waveguide Worst Case Error