Optical-information Method of Detection of Unmanned Aircraft by a Robotic Optical-electronic System
Abstract:
The informativeness of the operating spectral ranges of optoelectronic detection systems for unmanned aircraft is considered. The conducted studies have shown that the spectral range of 3 – 5 microns, due to the absence of powerful radiation sources in unmanned aircraft, has significantly lower radiation power compared to the spectral range of 8 – 13 microns. As an alternative to the range of 3 – 5 microns, a range of 1.2 - 1.7 microns is proposed. The proposed near–infrared range can complement the use of a range of 8 - 13 microns in daytime conditions, which, along with the development of new detection methods based on the background principle, will increase the detection efficiency of unmanned aircraft. A contrast method has been developed based on the background detection principle. A distinctive feature of the contrast method is the splitting of the frame into segments. The segment size corresponds to the size of the inhomogeneities of the atmosphere. A contrast algorithm for detecting unmanned aircraft is considered. The probability of detecting small-sized objects was calculated using the developed method. The developed contrast method is compared with existing methods. The advantage of the developed contrast method in comparison with the investigated ones is revealed. The detection range of unmanned aircraft has increased by 10%.
