A two-dimensional mimo array implementation method

An implementation method and array technology, applied in the field of two-dimensional MIMO array implementation, can solve the problems of unfavorable MIMO array design and selection, fixed and single antenna unit position, and achieve the effect of saving hardware resource costs and high-resolution imaging

CN104808201BInactive Publication Date: 2017-09-29CHINA ELECTRONIS TECH INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-09-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a two-dimensional MIMO (multi-input multi-output) array implementation method. The method includes the steps: determining intervals and quantity of array elements of a to-be-imaged equivalent virtual array; designing an initial one-dimensional linear transmitting array and a one-dimensional linear receiving array; enabling the transmitting array and the receiving array to move relatively; when a distance between each two adjacent transmitting antennas and a distance between each two adjacent receiving antennas are both / 2 / 2 times of a wavelength, stopping moving; judging whether the designed array meets requirements or not according to index requirements, and if not, continuing to execute until an antenna array meeting the design requirements is obtained; starting image testing after array design is finished. The two-dimensional MIMO array implementation method is simple, flexible and uniform and is highly advantageous in terms of array optimization selection, high-resolution imaging, saving of hardware resource cost and the like. Furthermore, two-dimensional or three-dimensional imaging of a target can be realized effectively by the aid of the antenna array designed according to the method.
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Description

technical field

[0001] The invention relates to the field of microwaves, in particular to a method for realizing a two-dimensional MIMO array. Background technique

[0002] Research and development of safe, effective, and low-cost radar imaging technology is the need of today's and future society. Imaging technology enables us to see the inside of our own body, the interior of the earth we live in, and the starry sky of the universe. It reduces our fear and anxiety about the unseen and unknown, and increases our ability to explore and solve problems.

[0003] RCS imaging technology has important value in stealth target recognition, weather forecast and geological detection. As a typical RCS imaging technology, Synthetic Aperture Radar (SAR) technology has been widely researched and explored by domestic and foreign academic workers. In the typical SAR technology in the laboratory, the transmitting and receiving antenna adopts the working method of "one step, one stop", and...

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] The existing array imaging technology requires a large number of physical antenna units, the hardware is complex, the cost is high, and it is difficult to set up. Typical two-dimensional antenna arrays include cross-shaped arrays, rectangular arrays, and L-shaped arrays, etc. The antenna units are fixed and single, and flexible , The versatility is not strong, which is not conducive to the optimal design and selection of MIMO arrays.

[0037] The presen...