Microwave gazing correlated imaging treatment method convenient in extracting of object contour

Abstract

The invention discloses a microwave gazing correlated imaging treatment method convenient in extracting of an object contour. The method comprises the following steps: establishing a microwave gazing correlated imaging linear model on the basis of an electromagnetic scattering theory and radar parameters; reconstructing a microwave gazing correlated imaging linear model by virtue of a total variation regularizing method so as to obtain a reconstructed target model of microwave gazing correlated imaging; and setting regularizing parameters and carrying out iterative inversion imaging so as to obtain a microwave gazing correlated inversed image which is stable and is high in definition. The method disclosed by the invention can be used for effectively solving the ill-posed problems of a random radiation field matrix; and the method is conducive to maintaining the edge characteristics of a target, and is especially suitable for an imaging scene which is clear in target outline and keeps a high contrast ratio with the surrounding environment.

Description

technical field [0001] The invention relates to the field of microwave staring associated imaging, in particular to a microwave staring associated imaging processing method that is convenient for extracting target contours. Background technique [0002] The microwave staring correlation imaging based on the space-time two-dimensional random radiation field is a brand-new microwave staring correlation imaging system. This new type of imaging system interacts with targets in the relatively static staring area to form scattered echoes by constructing a radiation field that changes randomly in two dimensions in time and space, and correlates the received scattered echoes with the radiation field information to obtain A high-resolution radar image of a target. This imaging system breaks through the limitation of the antenna aperture of the traditional radar imaging system, and provides a new technical approach for all-day, all-weather, high-resolution ground remote sensing stari...

AI Technical Summary

Problems solved by technology

In the actual system, the construction of the space-time two-dimensional radiation field is limited by many factors such as the number of random radiation units, the size of the random radiation port, and the signal bandwidth. It is very difficult to achieve the ideal space-time two-dimensional randomness.

The non-ideal random radiation field can easily lead to the ill-posedness of the observation matrix of the random radiation field, making the target inversion of microwave staring imaging an ill-posed problem

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