Accession Number:

AD0283573

Title:

THE EFFECT OF THE SECONDARY ELECTRON SHEATH ON RADAR RETURN

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS/POMONA CALIF

Personal Author(s):

Report Date:

1962-02-01

Pagination or Media Count:

1.0

Abstract:

Shaping and coating techniques currently appear to be capable of reducing the back scatter cross section of a missile in the fron shea h bou a missile. It is shown that for an inciden wave in th freque cy range 1,000 to 100,000 mc plasma sheaths having electron densities as high as 10 to the 8th power elcc are not capable of produci g suffici nt lectro g etic scattering to enhance the radar return. Thus e e bout h u ncy range of most conventional radars. Since it is believed th t ionospheric missile phenomena may enhance radar retur , calculations ere made to ev luate the significance of an elec ron shea h bou a missile. It is shown that for an inciden wave in th freque cy range 1,000 to 100,000 mc plasma sheaths having electron densities as high as 10 to the 8th power elcc are not capable of produci g suffici nt lectro g etic scattering to enhance the radar return. Thus e e bout h pe of a cone does not produce a blu ting effect ic is necessary in order to eliminate the reduction in cross section that is obtained by shaping. The radar cross section of e m tal sphere pl a h at combina ion is calculated in the 10 - 200 mc range. It is een that the eff ct of he plasm sheath is most significant in the frequency range wh re r sonant sc t ring i important. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE