Method and Apparatus of Generating Sum or Difference Signals Corresponding to an Apparent Beam in a Monopulse Radar System.
Patent, Filed 29 May 92, patented 31 Aug 93,
DEPARTMENT OF THE NAVY WASHINGTON DC
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The invention relates to an apparatus and method for generating target range, azimuth angle, or elevation angle output signals corresponding to an apparent beam in a multiple-feed monopulse radar system. The multiple-feed monopulse radar system according to the present invention includes a transmitterreceiver unit, an addersubtracter unit and a video comparatoradder unit. The transmitterreceiver unit is used to generate first and second actual antenna beams. Echoes caused by such actual beams are received and processed to provide first sum and first difference signals and second sum and second difference signals corresponding to the first and second actual beams, respectively. These signals are then supplied to the addersubtracter unit which adds the first sum and first difference signals to provide a result sigma sub 1 K delta sub 1, subtracts the first sum and first difference signals to provide a result sigma sub 1 - K delta, adds the second sum and second difference signals to provide a result sigma sub 2 K delta sub 1, and subtracts the second sum and second difference signals to provide a result sigma sub 2 - K delta sub 2.
- Active and Passive Radar Detection and Equipment