A composite scene imaging simulation system and method of sea surface and ship by geostationary orbit SAR

Abstract

The present invention is a static orbit SAR imaging simulation system and method for sea surface and ship composite scene, the target characteristic simulation subsystem generates the moving sea surface and ship composite scene, and the flight parameter setting computer generates the flight attitude and flight track of the tested static orbit SAR device , to control the attitude of the tested geostationary orbit SAR device; generate the one-dimensional range image data corresponding to the current position angle of the geostationary orbit SAR in the moving sea surface and the compound scene of the ship, and convert it into the corresponding geostationary orbit SAR echo signal, and pass the feed The control computer is radiated to the tested geostationary orbit SAR device by the array and the feed system, and finally the tested geostationary orbit SAR device performs imaging processing on the received echo signal and displays it on the simulation situation display subsystem.

Description

Technical field [0001] The present invention relates to a stationary orbit SAR on sea surface and vessel composite scene imaging simulation system and method belonging to SAR semi-real simulation technology. Background technique [0002] Still Track SAR is a active remote sensing radar that places SAR payload in the earth synchronous track satellite. Its main advantage is that the surface coverage is wide, strong anti-strike capacity, and the repeated access cycle is short, it is the future SAR SAR research and The important direction of development. However, the motion characteristics and Doppler characteristics of the still track SAR are different from other low-track and mid-track SAR, with long synthetic aperture time and bending trajectory, their motion characteristics and Doppler are subsequent track SAR The foundation of the study method research. Under the existing conditions, it is difficult to achieve an admission of the still track SAR measured data, so the still track...

AI Technical Summary

Problems solved by technology

Under the existing conditions, it is difficult to realize the acquisition of geostationary orbit SAR measured data, so the geostationary orbit SAR imaging algorithm and motion compensation algorithm cannot be effectively verified

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