IR line scanner on UAV
2011
This paper introduces the designing principle and method of the IR line scanner on UAV in three aspects of
optical-mechanical system, electronics system and processing software. It makes the system achieve good results in
practical application that there are many features in the system such as light weight, small size, low power assumption,
wide field of view, high instantaneous field of view, high noise equivalent temperature difference, wirelessly controlled and
so on. The entire system is designed as follows: Multi-element scanner is put into use for reducing the electrical noise
bandwidth, and then improving SNR; Square split aperture scanner is put into use for solving the image ratation distortion,
besides fit for large velocity to height ratio; DSP is put into use for non-uniformity correction and background nosie
subtraction, and then improving the imagery quality; SD card is put into use as image data storage media instead of the hard
disk; The image data is stored in SD card in FAT32 file system, easily playbacked by processing software on Windows and
Linux operating system; wireless transceiver module is put into use for wirelessly controlled.
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