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Noise coefficient measurement uncertainty calculator and error analysis method

A technology for measuring uncertainty and noise figure, which is applied in transmission systems, transmission monitoring, electrical components, etc., can solve problems such as the calculation of noise figure measurement uncertainty that is difficult for non-professional users, and achieve simplification of complex calculations and reduce Measuring Uncertainty, Effect of Improving Calculation Efficiency

Active Publication Date: 2020-04-10
CHINA ELECTRONIS TECH INSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no simple, flexible, and effective integrated tool that can meet the needs for the calculation of noise figure measurement uncertainty and the quantification and analysis of these unknown factors.
[0005] At present, it is difficult for non-professional users to calculate the measurement uncertainty of noise figure, and there is no intuitive tool for them to choose
For users who are familiar with and understand noise figure measurement and have certain professional knowledge, they usually separate and manually calculate the error factors, or use Excel tables to compile professional calculation formulas in the computer to obtain calculation results, but they cannot directly calculate the error factors. Quantitative or qualitative trend analysis and assessment of impact

Method used

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  • Noise coefficient measurement uncertainty calculator and error analysis method

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Embodiment 1

[0075] A noise figure measurement uncertainty calculator, comprising a parameter input module, an uncertainty calculation module, and a graphical quantitative analysis tool for uncertain items;

[0076] Among them, the parameter input module includes three parameter input areas: the input area of ​​the noise source, the device under test and the relevant parameters of the test instrument, which realizes the input of known parameters for the calculation of the noise figure measurement uncertainty;

[0077] Among them, the noise source parameter information includes noise source type, noise source ENR uncertainty dENR and matching;

[0078] The parameter information of the DUT includes the noise figure F1 of the DUT, the corrected gain G1 of the DUT, input matching, output matching and frequency converter;

[0079] Test instrument parameter information includes test instrument uncorrected noise figure F2, noise figure measurement uncertainty dInstrNF, gain uncertainty dInstrGain...

Embodiment 2

[0084] On the basis of the above-mentioned embodiment 1, the present invention also mentions a noise figure measurement uncertainty error analysis method, the process of which is as follows image 3 As shown, it specifically includes the following steps:

[0085] Step 1: Connect the noise figure test system to measure the noise figure and gain of the DUT and the test instrument; the noise figure test system includes such as figure 1 The three parts shown are the noise figure test instrument, the noise source used in measurement and calibration, and the DUT; the noise figure measurement uncertainty calculator is built in the noise figure test instrument, or placed outside the noise figure test system, through The GPIB interface or network interface is connected with the noise figure test instrument for control; the specific steps are as follows:

[0086] Step 1.1: Connect the noise source to the test instrument, and measure the uncorrected noise figure F2 of the test instrumen...

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Abstract

The invention discloses a noise coefficient measurement uncertainty calculator and an error analysis method, and belongs to the technical field of testing. According to the invention, a visual integrated calculator user interface is provided, so that the calculation efficiency of the uncertainty of noise coefficient measurement is improved; the change trend of the uncertainty of the whole noise coefficient measurement result along with error factors is clearly displayed through visual graphical display, an element which has the largest influence on the uncertainty of the whole measurement canbe rapidly recognized, and a flexible and reliable quantitative analysis tool is provided for reducing measurement uncertainty and improving measurement precision for users. According to the built-inY-factor method noise coefficient measurement uncertainty calculator provided by the invention, uncertainty calculation in any measurement configuration is realized, and the problems of rapid calculation of uncertainty of a Y-factor method noise coefficient measurement result by a user and quantification, analysis and evaluation of influence factors can be effectively solved; complex calculation is simplified, professional users are universalized, noise coefficient measurement uncertainty calculation efficiency is greatly improved, and the users can optimize and select noise coefficient measurement system schemes conveniently.

Description

technical field [0001] The invention belongs to the technical field of testing, and in particular relates to a noise factor measurement uncertainty calculator and an error analysis method. Background technique [0002] The rapid growth of the satellite communication and mobile communication system markets has greatly increased the demand for low-noise integrated and discrete semiconductor devices, but it has also brought considerable pressure to reduce the measurement uncertainty of the noise figure during the measurement process. At present, there is no intuitive, flexible and effective integrated tool that can meet the needs of users for the calculation of noise figure measurement uncertainty. [0003] In addition, the rapid development of the satellite and wireless communication markets has also led to higher user requirements for overall system performance. At the same time, the noise figure measurement and performance of subsystems and components are also in urgent need...

Claims

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Application Information

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IPC IPC(8): H04B17/345
CPCH04B17/345
Inventor 郑利颖梁胜利宋青娥李文军薛龙魏连城刘森
Owner CHINA ELECTRONIS TECH INSTR CO LTD
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