Space-reconfigurable remote sensing camera based on synthetic aperture technology

Abstract

The invention discloses a space-reconfigurable remote sensing camera based on a synthetic aperture technology. The space-reconfigurable remote sensing camera comprises a plurality of remote sensing camera modules (1) and a synthetic aperture assisting system, and the synthetic aperture auxiliary system comprises a synthetic aperture inphase corrector module (2), a synthetic aperture beam combinermodule (3), a synthetic aperture beam splitter module (4), a synthetic aperture inphase detector module (5), a synthetic aperture imaging and focusing module (6) and a synthetic aperture imaging detector module (7). Every remote sensing camera module can be in a separate working mode, or can be spatially reconstructed to form a synthetic aperture working mode. When high-resolution imaging of earthis not required, every remote sensing camera is in the separate working mode; and when high-resolution imaging of earth is required, the remote sensing cameras spatially reconstruct around the synthetic aperture assisting system to form the synthetic aperture working mode. The space-reconfigurable remote sensing camera can realize the imaging resolution of an equivalent large-aperture remote sensing camera.

Description

technical field [0001] The invention relates to a space remote sensing camera, in particular to a space reconfigurable remote sensing camera based on synthetic aperture technology. Background technique [0002] Remote sensing camera, as a direct earth observation imaging device, plays a vital role in agriculture, forestry, ocean, and land resource surveys. The ground observation images obtained through remote sensing cameras can provide raw data unmatched by other devices. Information, so it has a wide range of applications in technical fields such as space science and monitoring and census. According to the principle of optical diffraction, if the diameter of the imaging telescope of the remote sensing camera is D and the imaging band is λ, then the diffraction-limited angular resolution of the earth observation is 1.22λ / D, so the aperture D of the imaging telescope of the remote sensing camera directly determines its Target imaging resolution. In order to obtain higher-r...

AI Technical Summary

Problems solved by technology

The present invention uses several small-aperture remote sensing cameras to perform synthetic aperture reconstruction to achieve large-aperture high-resolution imaging effects, thereby effectively solving a series of constraints faced by existing single-aperture remote sensing cameras for high-resolution imaging requirements

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