Abstract: Based on the fuze sensor and detonation control system of an aimiable warhead of a spinning rocket, the construction and functional mechanism of the six-quadrant scanning laser fuze sensor is analyzed. A method of measuring the rocket rotational speed based on the spiral angle of laser beam is proposed. A mathematic model of rotational speed and a projectile-target relative motion equation are deduced, which can be solved by iterative decoupling algorithm. Simulation based on the Fortran program is conducted, and the optimal detonation time delay, optimal detonation azimuth angle and miss distance are obtained. The error analysis shows that the detected azimuth error meets the requirement of detecting accuracy.

Key words: ordnance science and technology, aimable warhead, projectile-target encounter, multi-quadrant laser proximity fuze, optimal detonation time delay, optimal detonation azimuth angle