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3 July 2000 Novel method to compare tropospheric path delay fluctuations with 22-GHz water vapor line emissions
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Abstract
Tropospheric phase fluctuation due to the water vapor content is one of difficult problems which degrades imaging performances of radio interferometry. One of the potential solutions is differential radiometry observations to measure the differential water vapor content along the line of sights. We developed a 22-GHz-line radiometer to be mounted on a ground data-link antenna which supplies the timing reference signal for a space VLBI satellite, HALCA. This system will allow us to compare directly the atmospheric phase fluctuation with the water vapor content along a single line of sight measured by the radiometer.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yoshiharu Asaki, Hideyuki Kobayashi, Naoki Hagiwara, and Masato Ishiguro "Novel method to compare tropospheric path delay fluctuations with 22-GHz water vapor line emissions", Proc. SPIE 4015, Radio Telescopes, (3 July 2000); https://doi.org/10.1117/12.390456
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