Helicopter Landing Six Degrees Of Freedom Measurement Algorithm And Digital Image Processing Experiments

Based on the background of the "Ten-Five" Technology Project ,we introduced the last development of helicopter's landing devices and optolelectronic guiding equipments. This paper describes the study of beacons-based algorithms of CCD TV sensor, discusses the imaging processing, design the infrared vision-enhanced system.In this dissertation, first of all, we have made a systemic analysis and study of algorithms of video signal processing, analysed single-CCD photogrammetry and double-CCD photogrammetry, for helicopter's landing system, adopted properly the photogrammetry,photogrammetry of six parameters. We simulated algorithms of six parameters on computer and analysed the error, for demand of 10cm departure, the distance departure on imaging plane is less than one pixel.We designed and made the experimentation system. We designed the beacons plane, used proper infrared CCD and designed real hardware circuite based on the DSP, which can be used to simulate and experiment on precision positioning algorithm by computer. We tested the whole system and proved that the hardware circuit could work normally.In the end, according to imaging algorithms and the photogrammetry, results experimentation proved that the photogrammetry of six parameters is available. We make a Polynomial evaluation, the linear evaluated result of the experiment meet the system demand of 10cm departure.all of done offers the important referenced value to develop the actual helicopter landing system.