One-dimensional dual-redundant antenna array and construction method

Abstract

The invention discloses a one-dimensional dual-redundant antenna array and a construction method. The construction method comprises the steps of establishing a design model of the one-dimensional dual-redundant antenna array based on a minimum array redundancy; by utilizing an intelligent optimization algorithm, obtaining a plurality of first antenna arrays which meet the design model; according to an adjacent array element spacing distribution condition of the first antenna arrays, carrying out an expansion operation on the first antenna arrays to obtain a plurality of second antenna arrays; and using the second antenna arrays which meet requirements of the one-dimensional dual-redundant antenna array and have small array redundancies as third antenna arrays, and according to an adjacent array element spacing distribution condition of the third antenna array, obtaining the one-dimensional dual-redundant antenna array with a random number of array elements. The method for constructing the one-dimensional dual-redundant antenna array, which is provided by the invention, solves the problem of large-degree coverage of a sampling frequency under the condition that a single array element is damaged, and provides guarantee for system reliability of a synthetic aperture radiometer in the microwave and millimeter wave radiation measurement application.

Description

technical field [0001] The invention belongs to the technical field of microwave remote sensing and target detection, and more specifically relates to a one-dimensional double redundant antenna array and a construction method. Background technique [0002] The "aperture synthesis technology" derived from radio astronomy uses sparse small-aperture antenna arrays to realize the "synthesis" of large-aperture antennas, avoiding the difficulty of making real-aperture antennas with large physical apertures in the field of microwave remote sensing and target detection. This results in a higher spatial resolution. [0003] However, when we consider the reliability and stability of the synthetic aperture microwave radiation measurement system, especially when the system works in some harsh environments, such as space-borne platforms, it is necessary to ensure that any array element is damaged. Completeness of baseline coverage within a given area. [0004] In harsh working environm...

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Problems solved by technology

[0005] In view of the above-mentioned defects, the present invention provides a one-dimensional dual redundant antenna array and its construction method, aiming to solve the problem that the existing antenna array cannot take into account the sharp reduction of baseline coverage and high spatial resolution of the antenna array after one array element is damaged question

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