Method, device and method for forming infrared-microwave beam

Abstract

The invention discloses a method for forming an infrared-microwave beam. A metal mesh is arranged in the center position of a rotationally parabolic reflecting surface in a matching manner; the metal mesh allows an infrared signal to pass through, and the metal mesh and the rotationally parabolic reflecting surface reflect a microwave signal simultaneously, and therefore, the infrared signal and the microwave signal are synthesized. The invention also discloses a system for forming an infrared-microwave beam; the system comprises an infrared light source, a feed source and the rotationally parabolic reflecting surface; an infrared target simulation system is located on the back of the rotationally parabolic reflecting surface, and the optical axis of the infrared target simulation system is coincident with the optical axis of the rotationally parabolic reflecting surface; the feed source is located in the focal position of the rotationally parabolic reflecting surface; a hole is formed in the central position of the rotationally parabolic reflecting surface; the metal mesh is inlaid in the hole of the rotationally parabolic reflecting surface, and the metal mesh is matched with the curvature of the rotationally parabolic reflecting surface. The device for forming the infrared-microwave beam, namely a simulation device for synthesizing infrared and microwave with the structure, is small in volume and light in weight, and can be mounted on two outer frame shafts of a five-axis turntable.

Description

technical field [0001] The invention relates to a method, device and system for combining infrared and microwave beams. Background technique [0002] The infrared guidance system has high precision and anti-jamming ability, but the range of action is small. Under adverse weather conditions, the signal-to-noise ratio of the detector is greatly reduced, which will easily lead to target loss. The microwave radar guidance system has a long range and has all-weather combat capabilities, but its The angular resolution is low and is easily affected by electromagnetic interference. The combination of microwave radar and infrared system will greatly improve the target interception and tracking ability and anti-interference ability of the weapon system. [0003] In order to design, verify, test and evaluate infrared / microwave composite guidance in the laboratory, it is necessary to establish a corresponding infrared / microwave composite guidance hardware-in-the-loop simulation system. ...

AI Technical Summary

Problems solved by technology

However, at present, the infrared / microwave composite simulation systems using this beamformer all use a flat metal grid beamformer. When the feed source is installed on the focus of the rotating paraboloid, the plane wave can be radiated and reflected by the flat metal mesh beam combiner, and the two are recombined. This system has both the rotating paraboloid and the flat metal Mesh grids, which are therefore bulky and cannot be mounted on a five-axis turntable, therefore have a limited line-of-sight angle for simulated targets

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