IONOSPHERIC INVESTIGATION FROM SATELLITE RADIO OBSERVATIONS 1.DOPPLER EFFECT RECORDING Instrumentation

摘要

A brief survey is made of the main features of satellite transmitters and of the ionospheric propagation effects produced in the radio waves from them. From these considerations the desirable properties of the transmitter are summarized and the necessary properties of the receiving appara¬tus are inferred.nDetailed descriptions of the various units of the receiving instrumentation are then given, followed by the presentation of a sample record analyzed to yield electron content of the ionosphere.