抄録
Development and research on Radio Acoustic Sounding System (RASS) are reviewed. RASS technique is used to remotely measure the atmosphereic temperature profiles. Principles of two methods of temperature mesurements, i.e., Doppler determination and Bragg resonance determination of temperature are outlined. Merit and demerit of both methods are discussed. The state of the art of development of RASS theories based on radio wave scattering by radio refractive-index inhomogeneities produced by an acoustic wave is reviewed in brief.
