An infrared heterodyne radiometer for high-resolution measurements of solar radiation and atmospheric transmission

Details An infrared heterodyne radiometer for high-resolution measurements of solar radiation and atmospheric transmission An infrared heterodyne radiometer for high-resolution measurements of solar radiation and atmospheric transmission

Aug 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ijqe...11..569p&link_type=abstract

IEEE Journal of Quantum Electronics, vol. QE-11, Aug. 1975, pt. 1, p. 569-574. NASA-supported research.

Physics

Optics

7

Atmospheric Optics, Infrared Radiometers, Optical Heterodyning, Solar Radiation, Transmissivity, Atmospheric Attenuation, Cloud Cover, High Resolution, Radiation Measurement, Signal To Noise Ratios, Spectral Resolution

Scientific paper

A tunable, Dicke-switched, infrared heterodyne radiometer (IHR) has been designed, fabricated, tested, and used to observe solar radiation and determine the atmospheric transmissivity in the 9-11-micron spectral band. The IHR provides a spectral resolution of 0.0067 reciprocal cm, a minimum detectable power level of 2.9 times ten to the minus twenty-third power W/Hz, and a temperature resolution of less than 1 K for a source temperature of 1000 K, an IF predetection bandwidth of 100 MHz, and an integration time of 30 s. Detailed design equations and measured IHR performance are presented. The IHR was used to make solar and atmospheric transmission measurements, and a vertical-path atmospheric attenuation of 2.3 dB has been established under favorable weather conditions. The attenuation of solar radiation due to cloud cover and haze has also been investigated.

Affiliated with

Also associated with

No associations

Rating

An infrared heterodyne radiometer for high-resolution measurements of solar radiation and atmospheric transmission does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An infrared heterodyne radiometer for high-resolution measurements of solar radiation and atmospheric transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An infrared heterodyne radiometer for high-resolution measurements of solar radiation and atmospheric transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1541106