Method of detection and identification of one or more remote objects

摘要

PCT No. PCT/NO85/00046 Sec. 371 Date May 21, 1987 Sec. 102(e) Date May 21, 1987 PCT Filed Jul. 29, 1985 PCT Pub. No. WO87/00930 PCT Pub. Date Feb. 12, 1987.A method of identifying and detecting remote objects by transmitting wave energy and receiving wave energy reflected from the object. Separate signal parameters pertaining to the wave energy received are processed forming a measured signature of the object. The measured signature is compared with a number of prestored signatures having the same signal parameters relating to known objects of interest. A recording is made of which prestored signatures correspond to the measured signature within predetermined tolerances. Subsequent transmission and reception of wave energy is used for updating the separate parameters and the measured signature. The updated measured signature is compared with the recorded prestored signatures for updated recording of a smaller number of prestored signatures corresponding to the updated measured signature within the predetermined tolerances.