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• RECOGNITION AND ADAPTIVE GENERATION OF PSEUDO-RANDOM TESTS OF SEQUENTIAL DIGITAL DEVICES

  Y.Е. Zinchenko , Т. А. Zinchenko

  189-204

  2025-11-10

  Abstract ▼

  The purpose of this paper is to improve the efficiency of pseudo-random testing of digital devices compared to the conventional approach. To achieve this goal, the following main tasks are solved in the work: analysis of the effectiveness of traditional testing approaches; developing a new approach based on recognition and adaptive pseudo-random testing of digital devices and developing a testing system based on the proposed approaches and conducting experimental studies based on it. The devices under test in this paper are sequential digital devices (with memory elements), implemented as printed circuit board on microcircuits with medium and small degree integration. Stuck-at faults are used as fault models in test synthesis and analysis. The subject of this research is sequential digital devices as diagnostic objects and approaches to their pseudo-random testing. An approach to recognizing and testing sequential digital devices is presented, which is based on a combination of traditional pseudo-random testing device under test at the first stage with and constructing an "alternative graph" of the device at the second stage and subsequent "wandering" along this graph in order to improve the testing efficiency. Based on the proposed approach a system AGAT for recognizing and testing digital devices has been developed. Testing can be performed for one or a group of devices under test on one computer or as part of a local computer network, including taking into account "multithreading" based on multi-core processors of personal computers in the network. Extensive research of the proposed approach and the developed system is carried out on two types of devices under test: the ISCAS'89 and the set of PCBs of the specialized radio engineering system.

• A SOFTWARE FOR AUTOMATED DESIGN OF MULTILAYER SHIELDING FOR ELECTRONIC EQUIPMENT PROTECTION FROM HEAVY CHARGED PARTICLES BASED ON GEANT4

  L.А. Zinchenko, V.V. Kazakov, R.R. Moiseev, Е. S. Polyakov

  2024-05-28

  Abstract ▼

  The article presents open source software for automating the design of radiation protection screens
  using Geant4 to protect electronic equipment from heavy charged particles. The article presents the chosen
  architecture for the implementation of the proposed approach, and also formulates the required input
  data and the resulting output data. The route of designing a screen based on input data about the material
  is described as a sequence of creating appropriate successor classes. This article is an in-depth study
  devoted to the development of open source software based on the Geant4 framework, which uses the Monte
  Carlo method aimed at automating the design process of radiation protection screens in order to ensure
  effective protection of electronic equipment from the effects of heavy charged particles. The article examines
  in detail the architecture of the developed software, including a description of the main components
  and technologies used in its creation, as well as determining the necessary input data and formulating
  requirements for the software product. The presented screen design route is described as a sequence of
  creating appropriate successor classes and their interaction within the framework of the developed architecture,
  which ensures the efficiency and accuracy of radiation protection calculations. The results of this
  work represent a new innovative approach to the design of radiation protection screens, which has the
  potential to significantly increase the reliability and safety of electronic systems under the influence of
  heavy charged particles. They are of great practical importance for specialists in the field of radiation
  protection and electronics development, providing them with an effective tool for analyzing and optimizing
  radiation protection screens. In addition, the results of the study are of interest to researchers working in
  the field of modeling radiation effects and developing new methods for protecting electronics from radiation
  exposure. In general, the article represents a significant contribution to the field of radiation protection
  and electronics, and is also the basis for further research and development in this direction.