Method of solving inverse matrix of electromagnetic wave propagation matrix based on antenna pattern information

A technology of antenna pattern and propagation matrix, applied in the direction of antenna radiation pattern, etc., can solve the problems that hinder the development and promotion of the radiation two-step method

Active Publication Date: 2016-08-10
GENERAL TEST SYST
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Problems solved by technology

Therefore, it seriously hinders the development

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  • Method of solving inverse matrix of electromagnetic wave propagation matrix based on antenna pattern information
  • Method of solving inverse matrix of electromagnetic wave propagation matrix based on antenna pattern information
  • Method of solving inverse matrix of electromagnetic wave propagation matrix based on antenna pattern information

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Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] In order to describe that the inverse matrix obtained by the calculation method of the embodiment of the present invention can be used in the radiation two-step method, firstly a brief introduction is given to the radiation two-step method and several defining concepts involved in the embodiment of the present invention.

[0025] Taking two receivers as an example, the conduction two-step method can be implemented as figure 2 As shown in , the calculation of the channel model and antenna pattern information is run in the ...

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Abstract

The invention discloses a method of solving the inverse matrix of an electromagnetic wave propagation matrix based on antenna pattern information of a wireless terminal. A microwave anechoic chamber comprises n test antennas inside, a wireless terminal comprises m receiving antennas, and the m receiving antennas and selected m test antennas carry out data transmission in the form of electromagnetic wave, wherein m>=2, and n>=m. The method of solving the inverse matrix of an electromagnetic wave propagation matrix comprises the following steps: getting the pattern information of the m receiving antennas; calculating out coordinate points suitable for solving the inverse matrix of an electromagnetic wave propagation matrix according to the pattern information; and solving the inverse matrix of a corresponding propagation matrix at the suitable coordinate points. Through the solving method, an inverse matrix meeting requirements can be solved quickly during calculation based on a radiation two-step approach (one of the international standards for MIMO test), no human intervention is needed, and time and effort are saved.

Description

technical field [0001] The invention belongs to the technical field of wireless device performance testing, and in particular relates to a method for solving the inverse matrix of an electromagnetic wave propagation matrix based on wireless terminal antenna pattern information, and the method is used in LTE MIMO OTA (Over The Air) test, one of the international standards for radiation applied in a two-step method. technical background [0002] The purpose of the MIMO OTA test is to ensure that the test results in the laboratory can truly reflect the wireless performance of wireless terminals in various complex actual use environments and user use states. [0003] At present, the main test standards provided by 3GPP (3rd Generation Partnership Project), the highest international wireless standard organization, are multi-probe method, radiation two-step method, and reverberation method. Among them, in related technologies, a fast, accurate and economical MIMO OTA test solutio...

Claims

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Application Information

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IPC IPC(8): G01R29/10
Inventor 漆一宏于伟沈鹏辉张峥
Owner GENERAL TEST SYST
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