A Survey of HF Interferometry for Ionospheric Propagation Research

摘要: The transform relation between the field distribution and angular spectrum forms basis for application of interferometry to propagation research. It is convenient divide into instrumental combination techniques which measure these Fourier relations provide mode resolution in terms direction width. Conventional direction-finder instrumentation represents limiting case single plane wave solution interference field. Computer instrumented interferometers sampling arrays capability more general analysis based on non models. This paper a summary finding, spectrum, width, coherence ratio measurements reviews evolution reference list includes works from radio astronomy literature relevant fundamental interferometer instrumentation.