Abstract:

As the small space in the shell and the high cost of millimetre wave devices, the near range millimetre wave synthetic aperture radiometer (MMWSAR) passive imaging technology is introduced into homing terminal guidance, and then a high performance guidance system is proposed. This system uses 2D minimum redundancy linear array antenna, is composed of seven receiving elements and can give 6×6 pixels image with the resource and cost greatly saved. Meanwhile fourth order cumulant is used, not only extends synthetic aperture, but also improves the antinoise ability. MMWSAR can immediately give images without scanning, and meets the realtime requirements of guidance. The simulation result shows that this system has a good detection performance under near range conditions.