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Spectrum analysis of ionospheric radar returns

Spectrum analysis of ionospheric radar returns

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A digital method of extracting ionospheric information from the Doppler broadening of radar signals is presented. 1 bit correlation, used by Weinreb in radioastronomy, is applied to measuring autocorrelation functions of ionospheric incoherent scatter returns. Calculated correlation functions are fitted to the observations to derive electron and ion temperatures.

References

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      • Weinreb, S.: `A digital spectral analysis technique and its application to radio astronomy', 412, Massachusetts Institute of Technology Research Laboratory of Electronics technical report, August 1966.
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      • J.B.G. Roberts , G.N. Taylor , C.D. Watkins . High power radar for ionospheric research. Nature , 865 - 868
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      • R.D. Davies , J.E.B. Ponsonby , L. Pointon , G. de Jager . The Jodrell Bank radio frequency digital autocorrelation spectrometer. Nature , 933 - 937
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      • J.H. van Vleck , D. Middleton . The spectrum of clipped noise. Proc. Inst. Elect. Electron. Engrs. , 2 - 19
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