title: Fault Detection and Diagnosis in Engineering Systems (Electrical Engineering and Electronics)
author:  Janos Gertler 
description: ." . .This book is devoted to the model-based approach, focusing on dynamic consistency (parity) relations and parameter estimation. The work is partly based on the author's own research contributions and provides a unified treatment of the subject, revealing the equivalence of seemingly different approaches (parity relations vs parameter estimation). The book makes a significant contribution to the FDD literature." ---The International Journal of Electrical Engineering Education
zlib_text:  
   
  Appl. Sci. 2020, 10, 2386; doi:10.3390/app10072386 
  www.mdpi.com/journal/applsci 
  Article 
  An Analog Circuit Fault Diagnosis Method Based on 
  Circle Model and Extreme Learning Machine 
  Sumin Guo 1, Bo Wu 2,*, Jingyu Zhou 2, Hongyu Li 1,*, Chunjian Su 3, Yibo Yuan 1 and Kebao Xu 1 
  1 College of Ocean Science and Engineering, Shandong University of Science and Technology, Qingdao 
  266590, China; skd994055@sdust.edu.cn (S.G.); luckyyuanyibo@163.com (Y.Y.); skdxkb@163.com (K.X.) 
  2 China Electronics Technology Group Corporation No.41 Research Institute, Qingdao 266555, China; 
  blueangel19841227@163.com 
  3 College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, 
  Qingdao 266590, China; suchunjian2008@163.com 
  * Correspondence: wu28429361@163.com (B.W.); skdlhy@163.com (H.L.) 
  Received: 20 January 2020 Accepted: 27 March 2020; Published: 31 March 2020 
  Abstract: The fault diagnosis of analog circuits faces problems, such as inefficient feature extr