What Is Optical Recording?

Optical tracking uses the principles of optical measurement and imaging to measure and record the target's movement trajectory, attitude, events that occur during the movement, and the target's infrared radiation and visual (visible light) characteristics.

Optical tracking is used

In Cartesian Cartesian coordinate system, the instantaneous center of mass position of the moving target can be determined by 3 line quantities ( X , Y , Z ), and its running trajectory can be obtained by continuously obtaining 3 line quantities. Optical tracking is commonly used

Optical tracking measurement system is a tracking measurement system used in weapon range testing and space launch. It uses the principles of optical measurement and imaging to measure and record the target's trajectory, posture, events that occur during the movement, and the target's infrared radiation and visual (visible light) characteristics. Optical tracking measurement equipment typically consists of cameras, tracking or surveillance equipment, and data processing equipment. Multiple devices are combined to form an optical tracking measurement system. Optical tracking measurement systems fall into three main categories.

In optical tracking measurement, a complete tracking measurement system must be composed of a variety of equipment. For example, an optical measurement system composed of several film theodolites must not only have a close cooperation between the film theodolites, but also connect with and cooperate with the guidance equipment, time uniform equipment, data transmission equipment, computing center and communication command equipment. . During the test, the guidance device introduced the target into the field of view of the film theodolite, and the film theodolite automatically or manually driven the servo system to track the target. During the tracking process, the time unified device controls each station to synchronize the shooting of the target. The shooting frequency is generally 10 to 40 frames / second. Each photo records the azimuth, elevation and target image of the target, which is then interpreted and corrected afterwards The target's ballistic parameters can be obtained. While tracking photos, the film theodolite outputs the measured parameters to the calculation center for safe control display and guidance of other measuring equipment.

Measure the ballistic parameters of the active and reentry sections of the rocket and missile to provide position information for safety control;

Shoot and record the actual movement of rockets and missiles, and provide data for missile take-off and departure, inter-stage separation, failure analysis and re-entry physical characteristics research;

Qualify and calibrate other optical and radio measuring equipment. The optical measurement system has high measurement accuracy and strong intuitiveness. The angle measurement accuracy can reach 2 to 5 arc seconds, the positioning accuracy can reach 1 to 2 meters, and the working distance is generally 100 to 400 kilometers. The disadvantage is that the working distance is short, affected by the weather, it is difficult to obtain data in rainy days, and it is easy to lose targets when there are clouds.