| 摘要 |
PURPOSE:To reduce an error by finding the distance from a laser device to a target and by irradiating the target with laser light of the repetitive frequency or modulated signal frequency that corresponds to the estimated distance from a flying body to the target on the basis of said distance. CONSTITUTION:With pulsating electric power supplied from xenon lamp power source 10, pulse laser beam 3 is supplied from laser beam emitting device 9 to a target via optical irradiation system 11. Laser beam reflected by the target is focused on detector 13 via optical condensation system 12 and then transduced into a received signal. The output of sample holding circuit 15 which samples and holds the integral value of integrator 14 corresponds to the distance of the target. Sample holding circuit 15 discharges a held voltage from the point in time when a flying- body movement start signal from input plug 16 is inputted. The dropping held voltage corresponds to the estimated distance from the flying body to the target. |
