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Antenna temperature field measurement method under incomplete information

A measurement method and temperature field technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as low measurement accuracy

Active Publication Date: 2019-12-20
XIDIAN UNIV +1
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  • Abstract
  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to provide a temperature field measurement method under incomplete information to solve the technical problem of low measurement accuracy in the prior art.

Method used

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  • Antenna temperature field measurement method under incomplete information
  • Antenna temperature field measurement method under incomplete information
  • Antenna temperature field measurement method under incomplete information

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] refer to figure 1 , the present invention comprises the following steps:

[0045] Step 1) Establish the antenna model to be tested and its corresponding virtual model:

[0046] Establish an antenna model to be tested with p temperature sensors on the surface, and establish a virtual model with the same structural parameters and material properties as the antenna model to be tested, and set p marker points at the positions corresponding to the temperature sensors in the virtual model and the antenna model to be tested , p≥2;

[0047] Step 2) Obtain the intrinsic orthogonal decomposition POD mode of the antenna model to be tested and the transient information T of M moments at the p marker points of the virtual model ns :

[0048] Step 2a) applying heat source and boundary conditions to the virtual model, and meshing the vi...

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Abstract

The invention provides a method for measuring an antenna temperature field under incomplete information, which is used for solving the problem of low measurement accuracy of the antenna temperature field in the prior art, and comprises the following steps of: (1) establishing an antenna model to be measured and a virtual model corresponding to the antenna model to be measured (2) obtaining a POD mode of the antenna model to be measured; (3) calculating a temperature field of the antenna to be measured; (4) obtaining target data Ht and source data Hs; (5) calculating target data Ht and imitation source data Hs'; (6) obtaining a training data equation H; (7) establishing a temperature field calculation pseudo-prediction model ptau; (8) calculating an antenna temperature field. According to the method, the influence of measurement errors on temperature field calculation is considered, and the calculation precision is improved.

Description

technical field [0001] The invention belongs to the technical field of radar antennas, and relates to an antenna temperature field measurement method under incomplete information. Background technique [0002] During the service of the antenna, force majeure factors such as the service environment will cause uneven changes in the temperature of the antenna array; inside the antenna, multiple T / R components are integrated with high density in a small space, while a single T / R component Multiple chips on multiple transceiver channels will also generate intensive heat, resulting in a large heat flux density, which will also lead to uneven temperature changes. Inhomogeneous changes in temperature will affect the S-parameters of the chip, the standing wave and gain of the transceiver channel, and even the telecommunications indicators of the entire antenna system. Therefore, the impact of thermal inhomogeneity on the electrical performance of the antenna cannot be ignored. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 周金柱刘威唐宝富程春红徐文华刘德荣黄进康乐王从思
Owner XIDIAN UNIV
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