Small-sized unmanned aerial vehicle-mounted millimeter wave interference synthetic aperture mapping radar

Abstract

The invention discloses a small-sized unmanned aerial vehicle-mounted millimeter wave interference synthetic aperture mapping radar, including the following modules: a servo device, a first antenna, a second antenna, a first radio frequency front end, a second radio frequency front end, a channel extension, a master control device, a combined navigator and a power supply device. The small-sized unmanned aerial vehicle-mounted millimeter wave interference synthetic aperture mapping radar adopts single-transmitting double-receiving antennas, performs synthetic aperture imaging on mapping areas at the same time, and uses signals phases in two images to interfere, so as to obtain height dimension information, thereby obtaining a three-dimensional image.

Description

technical field [0001] The invention relates to a small unmanned aerial vehicle-borne millimeter-wave interference synthetic aperture surveying and mapping radar. Background technique [0002] With the rapid development of small UAV technology, the method of using small UAVs for surveying and mapping has gradually become an important method in the field of civil surveying and mapping. At present, the surveying and mapping methods used by small UAVs mainly include visible light, laser radar, and small synthetic aperture radar. Among them, the image obtained by the visible light mapping method has high resolution and low cost, but it can only obtain two-dimensional plane image information and cannot obtain height information, and it is seriously affected by the weather. It cannot work normally under cloudy or dark conditions; LiDAR can obtain 3D image information including height information, but it is also limited by the climate, and cannot work normally under cloudy, foggy,...

AI Technical Summary

Problems solved by technology

Among them, the image obtained by the visible light mapping method has high resolution and low cost, but it can only obtain two-dimensional plane image information and cannot obtain height information, and it is seriously affected by the weather. It cannot work normally under cloudy or dark conditions; LiDAR can obtain 3D image information including height information, but it is also limited by the climate, and cannot work normally under cloudy, foggy, rainy weather conditions and strong light work, and its large size, heavy weight, high requirements for small UAV platforms, and expensive; small synthetic aperture radar is not affected by the climate, and can work normally all day and all day, but it can only obtain two-dimensional plane images information

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