An array multi-index optimization method based on array element domain data
An optimization method and multi-indicator technology, applied in the field of array multi-indicator optimization based on array element domain data, can solve problems such as limited effects, achieve the effect of reducing complexity and expanding the scope of application
Active Publication Date: 2019-05-07
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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However, in actual situations, the optimization of a few indicators has limited effect on practical engineering applications, and it is often more desirable to optimize the above indicators at the same time
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0025] Any feature disclosed in this specification (including the abstract and drawings), unless specifically stated, can be replaced by other equivalent or similar purpose alternative features. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0026] as per figure 1 As shown in the processing flow, in this specific embodiment, the simulation uses a 36-element uniform planar array, and the receiving beamforming direction is θ d =60°, the null direction is θ n =30°, preset array sidelobe value η sidelobe =-20dB. Perform...
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The invention provides an array multi-index optimization method based on element space data, comprising: first, utilizing the basic information of an array and a signal to be received to determine an array flow pattern model; second, correcting the array element position error, channel amplitude error, phase error and cross coupling errors among array elements of the array; third, weighting each array element in the array and constructing a convex optimization objective mathematical expression and a convex optimization objective condition; solving each set of weights meeting the convex optimization objective condition, and substituting each set of weights into the convex optimization objective mathematical expression to obtain and store the optimization objective value corresponding each set of weights, and obtain a set of array space weights with a minimum optimization objective value; and multiplying the solved set of array space weights with a minimum optimization objective value with corresponding array element data to complete array optimization. The method simultaneously optimizes the main beam position, sidelobe level and null position index of the array to simultaneously obtain the optimal values of the array indexes and improve array treatment performance.
Description
technical field [0001] The invention relates to an array multi-index optimization method based on array element field data, in particular to an array multi-index optimization method suitable for array element field data. Background technique [0002] The traditional array beam optimization technology uses array data weights to optimize array indicators, including sidelobe level size, main beam position, null position in other directions, etc. In the prior art, the conventional beamforming method is to optimize the position of the main beam; the MVDR method is to optimize the position of the main beam and other null directions; the Chebyshev weighting method can optimize the position of the main beam and the size of the side lobe optimization etc. However, in actual situations, the optimization of a few indicators has limited effect on practical engineering applications, and it is often more desirable to optimize the above indicators at the same time. Contents of the inven...
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IPC IPC(8): H04W16/28H04W24/02
CPCH04W16/28H04W24/02
Inventor 马巍冯敬伟廖长江
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP