Ultra wideband radar signal processor for electronically scanned arrays

An ultra-wideband radar tracking system for tracking a moving target, said ultra-wideband radar tracking system comprising:

• a multi-octave signal generator which generates an ultra-wideband chirped pulse signal, said ultra-wideband chirped pulse signal comprising a signal which is at least an octave in bandwidth;
• a phased array antenna which is electrically connected with said multi-octave signal generator, said phased array antenna receiving said ultra-wideband chirped pulse signal from said multi-octave signal generator, and transmitting it into space, said phased array antenna having a plurality of radiating antenna elements which receives a doppler shifted chirped pulse signal from said moving target;
• a means for producing a baseband signal with a video beat note, said producing means being electrically connected with said multi-octave signal generator in order to receive and mix said ultra-wideband chirped pulse signal with said doppler shifted chirped pulse signal;
• a means for generating a plurality Doppler deramping chirp signals which when mixed with said baseband signal, provides an individual frequency offset for each of the antenna elements in the phased array antenna;
• and
• a means for mixing said baseband signal with each of said plurality of Doppler deramping chirp signals to produce thereby a plurality of frequency-steered signals which collectively represent said ultra-wideband chirped pulse signal with said frequency offset included therein.

An ultra-wideband radar tracking system for tracking a moving target, said ultra-wideband radar tracking system comprising:

• a multi-octave signal generator which generates an ultra-wideband chirped pulse signal;
• a phased array transmitting antenna which is electrically connected with said multi-octave signal generator, said phased array transmitting antenna receiving said ultra-wideband chirped pulse signal from said multi-octave signal generator, and transmitting it into space, said phased array transmitting antenna having a plurality of radiating antenna elements;
• a receiving antenna for receiving a Doppler-shifted chirped pulse as said target-echo return signal is reflected from said moving target, said receiving antenna outputting said Doppler-shifted chirped pulse;
• and
• a means for processing signals which is electrically connected to said receiving antenna, said signal processing means using frequency offset generation to electronically steer the ultra-wideband chirped pulse signal emitted by said phased array transmitting antenna.

An ultra-wideband radar tracking system for tracking a moving target, said ultra-wideband radar tracking system comprising:

• a multi-octave signal generator which generates an ultra-wideband chirped pulse signal, said ultra-wideband chirped pulse comprising a signal which is at least an octave in bandwidth;
• a phased array transmitting antenna which is electrically connected with said multi-octave signal generator, said phased array transmitting antenna receiving said ultra-wideband chirped pulse signal from said multi-octave signal generator, and transmitting it into space, said phased array transmitting antenna having a plurality of radiating antenna elements;
• a receiving antenna for receiving a Doppler-shifted chirped pulse as said target-echo return signal is reflected from said moving target, said receiving antenna outputting said Dopplar-shifted chirped pulse;
• a means for producing a baseband signal with a video beat note, said producing means being electrically connected with said multi-octave signal generator in order to receive and mix said ultra-wideband chirped pulse signal with said Doppler-shifted chirped pulse;
• a means for generating a plurality Doppler deramping chirp signals which when mixed with said baseband signal, provides an individual frequency offset for each of the antenna elements in the phased array transmitting antenna;
• and
• a means for mixing said baseband signal with each of said plurality of Doppler deramping chirp signals to produce thereby a plurality of frequency-steered signals which collectively represent said ultra-wideband chirped pulse signal with said frequency offset included therein.