LAUSR

Abstract For the projectile velocity accuracy problem of sky screen target velocity measurement system under the condition of shooting range test site environment, a calibration method of the target distance parameter of sky screen target velocity measuring system is proposed in this paper. According to the characteristics of the screen of sky screen target, reference plane and distance measuring datum plane components are designed, which include laser plane projection apparatus, plane normal laser projector, high precision laser rangefinder, precision platform and tripod. The target distance parameter calibration is completed cooperate with theodolite and precision optical instruments, etc. The standard uncertainty and synthesis of uncertainty of various parameters are evaluated. The expanded uncertainty of measuring target distance of 3000 mm is 1.4 mm. The gas bullets live-fire test verifies the feasibility and correctness of the calibration method.