An Optimal Method for Predicting Characteristic Parameters of Radio Frequency Circuit Faults

A technology for characterizing parameters and radio frequency circuits, applied in the field of radio frequency engineering, it can solve the problem of parameter selection methods without clear process specifications, and achieve the effect of low cost and reducing the crisis of modification

Active Publication Date: 2020-11-24
10TH RES INST OF CETC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The premise of accurate health assessment and fault prediction of radio frequency circuit system is to scientifically and effectively select the characterization parameters of the analysis object. At present, the research on the health assessment and fault prediction of radio frequency circuit at home and abroad is mainly concentrated on the algorithm theory and data analysis level. The parameter selection method does not have a clear process specification and cannot guarantee that the selected parameters have a good reflection on the health and failure states

Method used

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  • An Optimal Method for Predicting Characteristic Parameters of Radio Frequency Circuit Faults
  • An Optimal Method for Predicting Characteristic Parameters of Radio Frequency Circuit Faults
  • An Optimal Method for Predicting Characteristic Parameters of Radio Frequency Circuit Faults

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Embodiment 1

[0023] Divide the RF circuit system hierarchically according to signal flow, functional category and functional level, and divide the analysis circuit into functional modules with independent functions; analyze the fault characterization or detection parameters of each layer of functions, and analyze all outputs of each functional module Analyze the ports and list all the testable parameter information of the output ports at each level; analyze the historical data of the analysis object, extract the parameters that can characterize the health from the historical data analysis results, and analyze the information contribution rate of the relevant parameters. Determine the importance; according to the combination of the determined importance parameters, a fault prediction sensitive characterization parameter combination set containing most of the parameter information of each layer of functional modules is formed; the characterization parameters obtained by direct elimination are ...

Embodiment 2

[0025] (1) Divide the radio frequency circuit system hierarchically according to signal flow, functional category and functional level, and divide the analysis circuit into functional modules with independent functions.

[0026] (2) Analyze the fault representation or detection parameters of the functions of each layer, analyze all the output ports of the divided functional modules, and list all the testable parameter information of the output ports of each layer.

[0027] (3) First, determine the key components that have a greater impact on health or failure. The main method is to use historical data to calculate the failure rate data of all devices, analyze the historical data of the analysis object, and extract from the historical data analysis results. Parameters that can characterize health and sort the failure rate data; secondly, analyze the failure modes and influencing parameters of all devices, and select device parameters that reflect the failure mode; collect normal...

Embodiment 3

[0041] refer to figure 2 . Combined with the optimization process, the typical RF power module is used as the implementation object to carry out the parameter optimization description. First, the RF power module is divided according to the functional level. The functional division of the power module is shown as follows figure 2As shown, it is divided into input filter module and protection circuit module, DC / DC DC / DC conversion circuit 1, DC / DC conversion circuit 2, output filter circuit 1, output filter circuit 2, output filter circuit 3 and related control circuit modules , analyze the characteristic parameters or detection parameters, and obtain the characteristic parameters of the working performance of the RF power module. According to the characteristic parameters of the normal working performance of the RF power module, adopt the method based on FMEA analysis, combine the analysis of fault tree analysis and historical case data, and construct The failure prediction ...

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Abstract

The present invention provides an optimization method for predicting fault characterization parameters of radio frequency circuits. By utilizing the preferred process of the invention, the selected characterization parameters can be ensured to be sensitive, effective and accurate. The invention is realized by the following technical scheme: at first, that radio frequency circuit system is divide into layers, FMEA is carry out on a layered basis, FTA and historical data statistic analysis, all potential characterization parameter sets are determined, a measurable characterization parameter setand an unmeasurable characterization parameter set are constructed, the indirectly measurable characterization parameter set is constructed by analyzing the detection method, repetition of potential characterization parameter sets. The analysis of testability, correlation and importance forms a set of basic predictive characterization parameters. Finally, the key sensitive characterization parameters of fault prediction are finally determined from the analysis of completeness and validity of fault prediction, and the steps of selecting the sensitive parameters for RF circuit fault prediction and the optimization process of the characterization parameters for RF circuit system fault prediction are established.

Description

technical field [0001] The invention belongs to the technical field of radio frequency engineering, and relates to a method for selecting parameters for evaluation and analysis of radio frequency circuits, and more specifically, a method for optimizing characteristic parameters for predicting radio frequency circuit failures. Background technique [0002] With the rapid development of radio frequency circuits, the functional capabilities and integration of radio frequency circuits are increasing day by day, and radio frequency circuits are developing in the direction of low power consumption, integration, high bandwidth, and high speed. It is increasingly required that the radio frequency circuit system has higher output power, efficiency and reliability in a wider frequency band and a smaller volume. The radio frequency circuit system exhibits some characteristics different from low frequency circuits and DC circuits. The abbreviation of radio frequency is RF current, which...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/10H04B17/391
CPCH04B17/10H04B17/101H04B17/3913
Inventor 陈文豪
Owner 10TH RES INST OF CETC
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