초록 ▼

A system for real beam radar ground mapping using a monopulse antennae to determine off-boresight angle of target returns. Off-boresight angle is converted to azimuth bins. After processing, return energy for each contiguous azimuth bin of an illuminated area is dumped during a respective “look”of t

A system for real beam radar ground mapping using a monopulse antennae to determine off-boresight angle of target returns. Off-boresight angle is converted to azimuth bins. After processing, return energy for each contiguous azimuth bin of an illuminated area is dumped during a respective “look”of the antenna.

대표청구항 ▼

A method of real aperture radar ground mapping, comprising: scanning a monopulse antenna having a central boresight, over a ground surface area to be mapped; transmitting along the boresight a plurality of radar pulses, each having a predetermined angular beamwidth, during each of a plurality of spa

A method of real aperture radar ground mapping, comprising: scanning a monopulse antenna having a central boresight, over a ground surface area to be mapped; transmitting along the boresight a plurality of radar pulses, each having a predetermined angular beamwidth, during each of a plurality of spaced azimuth intervals, each azimuth interval defining an antenna look, the transmitted radar pulses during each look illuminating a total ground area in azimuth corresponding to the beamwidth thereof; receiving and detecting at the antenna, during each look, return energy of the reflected pulses of the illuminated area at distinct times corresponding to respective range intervals; calculating a predetermined plurality of distinct off-boresight angles of the return energy for each range interval; converting each of the plurality of calculated off-boresight angles to a different contiguous azimuth bin for each range interval, each azimuth bin corresponding to a fractional portion in azimuth of the total illuminated ground area during each look; displaying the detected reflected energy of each distinct azimuth bin in successive azimuth bins of the total illuminated ground area for subsequent antenna looks.