Mitigation of antenna test range impairments caused by presence of undesirable emitters
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United States of America Patent
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May 22, 2001
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N/A
app pub date -
Apr 20, 1999
filing date -
Apr 20, 1999
priority date (Note) -
Expired
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Abstract
An antenna test range uses direct spread-spectrum based test signals to test the performance of an antenna. Since a spread spectrum waveform has high autocorrelation properties with itself and high cross-correlation properties with signals other than itself, in the receiver coupled to the antenna it is possible to effectively electronically reject all unwanted signals that may be present in the test range, and thereby allow both main beam and off-axis performance of the antenna to be completely and accurately measured.
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