Radiometric recognition of coherence

• 1 May 1977
• journal article
• Published by American Geophysical Union (AGU) in Radio Science
• Vol. 12  (3) , 371-379
• https://doi.org/10.1029/rs012i003p00371

Abstract

Keywords

• EMITS INCOHERENT RADIATION WITH A SPECTRAL DEPENDENCE GIVEN BY PLANCK'S LAW. IF A SPATIAL FILTER SUCH AS A DIELECTRIC SLAB IS PLACED BETWEEN THE BLACKBODY AND THE RADIOMETER
• BEING A PER- FECT ABSORBER
• THE EMERGING RADIATION WILL BE PARTIALLY COHERENT WITH A SPECTRAL CHARACTER DEPENDENT ON BOTH THE PLANCK FUNC
• A RADIOMETER RECEIVING THERMAL RADIATION FROM THE EARTH'S SURFACE IS RESPONSIVE TO CHANGES IN BOTH TEMPERATURE AND THE ABILITY OF THE SURFACE TO ABSORB ELECTROMAGNETIC WAVES. A BLACKBODY
• SPATIAL FILTERING
• PLANE WAVES
• SIGNAL PROCESSING
• PATTERN RECOGNITION
• PHASE SHIFT
• ENERGY DISSIPATION
• MICROWAVE RADIOMETER
• RULE OF THUMB
• THERMAL RADIATION
• BRIGHTNESS TEMPERATURE
• ELECTROMAGNETIC WAVES