Patent ID: 7573419

Claim:
A system for unambiguous angular resolution in connection with a sparse wide-band antenna array for bistatic or monostatic radar operation, comprising: a transmitter antenna with a single transmitting antenna element arranged to transmit an ultra wide-band microwave signal; a receiving microwave antenna array with n individual antenna elements generally distributed at distances of several wavelengths arranged to receive echoes from a target object as a sampled input signal; and a unit arranged to achieve a resulting radar range echo response as a convolution between sampled radiated wide-band output signal and sampled total input signal received by the receiving antenna array as echoes from the target object, the convolution result being read out as a signature of the target, wherein the single transmitting antenna element is an omnidirectional transmitter antenna in a monostatic circular configuration and is generally positioned at another height than the a receiving antenna elements to minimize leakage between transmit arid receive antennas.