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Probe calibration scheme for MIMO testing system

A test system and calibration method technology, applied in the field of wireless communication, can solve the problems of inconsistent signal transmission and reception capabilities, affecting the accuracy of test results, etc., and achieve the effects of large channel capacity, high communication quality, and accurate test results.

Pending Publication Date: 2016-11-09
SUNYIELD TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The MIMO test system includes multiple dual-polarization (H, V two polarizations) probes. Each probe has inconsistent sending and receiving capabilities for signals, and the mutual coupling between dual-polarized probes affects the signal from the probe antenna to being received by the mobile phone. The loss in this process, these factors will seriously affect the accuracy of the test results

Method used

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Embodiment Construction

[0026] 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.

[0027] The embodiment of the invention discloses a probe calibration scheme for a MIMO test system, which has the characteristics of large system channel capacity, high communication quality and accurate test results.

[0028] Please refer to the attached figure 1 , attached figure 2 , which is a probe calibration scheme for a MIMO test system disclosed in the present invention, specifically includes:

[0029] The proposed calibration method starts from the...

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Abstract

The invention discloses a probe calibration scheme for a MIMO testing system. The calibration method proposed by the invention comprises the following steps: proceeding from the formula Friis transmission of an antenna, determining the system consumption when the signal is at the radio wave darkroom part through the adoption of the two-antenna method, and performing normalized compensation on a probe antenna. The gain of one probe in a multi-probe antenna measurement system is selected as the reference standard, a network analyzer is used for receiving-transmitting a signal, the normalized processing is performed through the analysis and processing on the data read by the network analyzer and the compensation of different values for the probe. The scheme disclosed by the invention has the features of being large in system channel capacity, high in communication quality and accurate in testing result.

Description

technical field [0001] The invention relates to the technical field of wireless communication, and more specifically relates to a probe calibration scheme for a MIMO test system. Background technique [0002] MIMO (Multiple-Input Multiple-Output) technology refers to the use of multiple transmitting antennas and receiving antennas at the transmitting end and receiving end, respectively, so that signals are transmitted and received through multiple antennas at the transmitting end and receiving end, thereby improving communication quality. It can make full use of space resources, realize multiple transmissions and multiple receptions through multiple antennas, and can double the system channel capacity without increasing spectrum resources and antenna transmission power, showing obvious advantages, and is regarded as the next generation of mobile The core technology of communication. [0003] The MIMO test system includes multiple dual-polarization (H, V two polarizations) p...

Claims

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Application Information

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IPC IPC(8): H04B17/11H04B17/21
CPCH04B17/11H04B17/21
Inventor 韩栋
Owner SUNYIELD TECH CO LTD
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