Radar apparatus enabling simplified suppression of interference signal components which result from reception of directly transmitted radar waves from another radar apparatus
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United States of America Patent
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Jul 20, 2010
Grant Date -
May 14, 2009
app pub date -
Nov 12, 2008
filing date -
Nov 12, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a FM-CW or CW radar apparatus, when interference components are contained in channel signals obtained as beat signals from array antenna elements of respective channels, and the interference components result from directly receiving transmitted CW radar waves from an external source, phase shifting is applied to each of the channel signals to shift respective phases of the interference components of the respective channels to a condition corresponding to reception of interference waves from a predetermined direction. The interference components are then eliminated, and reverse phase shifting is applied to restore remaining components of the channel signals to their original phase condition.
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