Module-level error analytic control method for phased array antenna system

A phased array antenna and error analysis technology, applied in the electronic field, can solve problems such as uncertainty, difficulty in accurately controlling the error control range of each module, and system error not considered

CN102104196AInactive Publication Date: 2011-06-2210TH RES INST OF CETC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-06-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a module-level error analytic control method for a phased array antenna system, which belongs to the technical field of electronics. The method comprises the following steps of: first, determining initial values of each module error according to a phased array system error analytic control probability model; then, establishing a numerical experiment model according to an amplitude-phase error of each module and an active unit directional diagram; next, generating a numerical test matrix; and finally, outputting a phased array antenna system error analytic control result meeting an expected requirement in a numerical experiment mode. The method finally guides a module design and an overall system design effectively by effectively regulating and controlling various types of errors of a system based on each of module errors and an interconnection mismatch influence among the module errors; and in reverse, the method also can evaluate performance indexes such as anarray minor lobe level of the phased array antenna system, a 3dB beam width, the gain loss of an array, beam-pointing accuracy and the like according to actual amplitude-phase errors of modules, and a system error caused by the interconnection mismatch of each of modules.
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Description

technical field

[0001] The invention belongs to the field of electronic technology, in particular to array antenna technology and phased array antenna technology. Background technique

[0002] A phased array antenna system usually consists of core components such as an antenna array, TR components, and a radio frequency network. These non-ideal components and modules contained in the system will cause a variety of random and spatially related errors. The superposition of all these errors will have a great impact on the phased array antenna system, which may reduce the system's resistance to electronic interference, Ability to resist anti-radiation missiles and clutter suppression.

[0003] The traditional phased array antenna error analysis control method uses the principle of probability theory for analysis, for example, the technical report "The Theory of Array Antennas" (MIT Lincoln Lab., 1963) and the book "Phased Array Radar System" (National Defense Industry Press , ...

Examples

Embodiment Construction

[0039] The principle of implementing the present invention is as follows: first set up the probability model of phased array antenna system error analysis and control according to the theory of probability, determine the initial parameter value of each module error of phased array antenna system; then according to the module amplitude of phased array antenna system The system error caused by phase error, system unevenness, phase shifter quantization error, and module interconnection mismatch, combined with the active unit pattern information considering the influence of array mutual coupling, establishes a phased array antenna system error analysis and control system Numerical experimental model; then according to the numerical experimental model to generate Γ matrix, δ A matrix and δ φ The numerical test matrix of the matrix; finally, the initial parameter values ​​of the errors of each module are substituted into the numerical experimental model, and the numerical experiment...