Ground staring imaging system for hovering platforms

Abstract

The invention puts forward a ground staring imaging system for hovering platforms. The system comprises a transmitter module, a signal processing module and a receiver module. The transmitter module generates and transmits random signals at a predetermined observation visual angle to form a space-time bidimensional random radiation field. The signal processing module calculates and obtains distribution data of the space-time bidimensional random radiation field through emission signal form of a random radiation source unit, configuration distribution of a transmitter antenna, elevation distance from a transmitter to an overlay region and the observation visual angle. The receiver module is used for receiving scattering echo signals through a receiving antenna unit, associating the scattering echo signals with corresponding input radiation field information, and outputting high resolution inversion image. The above scheme put forward by the invention can realize a ground staring high resolution radar imaging function applied in the hovering platforms, and the function is not supported by the prior art. Large scale staring imaging over the ground can be completed through designing aplurality of work modes.

Description

technical field [0001] The invention relates to imaging technology in the fields of radar, microwave remote sensing and precise guidance, in particular, the invention relates to an imaging system for staring at the ground for a hovering platform. Background technique [0002] As a platform for various electronic equipment, the hovering platform has been applied in practice in space early warning, battlefield surveillance, and electronic countermeasures. The hovering platform can be equipped with various remote sensing, early warning, jamming, reconnaissance and other systems, and has the advantages of long time in the air, strong load capacity, wide coverage area, and low cost. [0003] Under the imaging condition of staring observation, the radar system and the target in the observation area maintain a relatively static state. At this time, the real aperture radar system is a well-known radar system. Traditional real-aperture imaging radar systems include beam scanning rad...

AI Technical Summary

Problems solved by technology

If the traditional real-aperture radar system is used to complete the large-scale staring imaging of the ground, the technical requirements and cost of the system will be greatly increased, and the imaging resolution is limited by the aperture of the antenna

[0004] Therefore, it is necessary to propose an effective technical solution to solve the problem that it is difficult to support ground staring high-resolution radar imaging and large-scale staring imaging applied to hovering platforms in the existing technology

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