Flying target detection target device and detection method

Abstract

The invention relates to a flying object detecting target device. The flying object detecting target device comprises a computing module and two stations of cross light curtains. Each station of the cross light curtain comprises two receiving-transmitting modules. The two receiving-transmitting modules in the station are alternately installed, and positioned in the same plane. Measuring areas of the two stations of the cross light curtains are opposite parallelly. The computing module is connected with each of the receiving-transmitting modules, and used for computing a distance between an object and the two receiving-transmitting modules while the object passes through each station of the cross light curtain, thereby solving a position while the object passes through the station of the cross light curtain, and acquiring a real flying distance of the object between the two stations of the cross light curtains, and computing a real flying speed of the object in combination with flying time. The device is simple in structure, and capable of simultaneously measuring the position and the speed of the object, and effectively reducing an error caused by deflection of each direction in anobject flying process. The invention further relates to a flying object detecting method. The above flying object detecting target device is used for measuring a target range, operation is simple, and speed measuring precision is high.

Description

technical field [0001] The invention relates to the technical field of shooting range measurement, in particular to a flying target detection target device and detection method. Background technique [0002] Flying speed is the main characteristic parameter to measure the flying effect of the object, it is an important factor affecting the flying distance of the object, and it is an important technical index to test whether the flying accuracy of the object meets the design requirements. The accuracy of flight speed measurement results directly affects the production, research, development and application of aircraft. [0003] At present, the speed measurement of high-speed flying targets is usually completed by devices such as light curtain targets. The area-section speed measurement method based on double light curtain target is the simplest light curtain target speed measurement scheme, which is low in cost and easy to use. Its disadvantage is that the flight direction ...

AI Technical Summary

Problems solved by technology

Its disadvantage is that the flight direction of the target is required to be perpendicular to the light curtain during use, but in actual shooting range measurement, it is difficult to meet this ideal condition due to site constraints and launch uncertainties

The deviation of the target flight direction from the normal direction of the light curtain will introduce additional speed measurement errors. For example, when the flight direction deviates from the normal direction of the light curtain by 8°, the additional error introduced is close to 10‰, which becomes the main source of error. The screen target cannot measure the coordinate position of the flying target, and the error cannot be corrected

Among other speed measurement schemes, the four-light-curtain target and the six-light-curtain target can improve the measurement accuracy by setting multiple light curtains with different angles, and take into account the coordinate position measurement, but the system is complicated, and the cost of implementation and the difficulty of adjustment and maintenance are relatively high

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