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SIMPLE AND ACCURATE CELL MACROMODELS FOR THE SIMULATIONS OF CELLULAR NEURAL NETWORKS

Journal Name:

  • Istanbul University Journal of Electrical & Electronics Engineering

Publication Year:

  • 2002

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In this paper, two simple and accurate cell macromodels for PSPICE simulations of Cellular Neural Networks (CNNs) are designed. Firstly, a brief information about CNNs and their benefits are introduced. Then the nonlinear differential equations that characterize the CNNs and the equivalent cell circuit given by Chua and Yang which realizes these equations are presented. With appropriate source transformations, another cell equivalent that employs voltage controlled-voltage sources instead of voltage controlled-current sources is developed. By substituting the dependent sources with their actual circuits for both equivalents, complete systems which are suitable for PSPICE macromodeling are derived. Responses of astable and stable CNNs are analyzed with the proposed macromodels and satisfactory results are observed after the simulations. The benefits and drawbacks of the macromodels are also discussed in the conclusion section.
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Abstract (Original Language): 
Bu makalede, Hücresel Sinir Aðlarýnýn PSPICE benzetimleri için basit ve güvenilir iki hücre makromodeli tasarlanmýþtýr. Ýlk olarak, kýsaca Hücresel Sinir Aðlarý ve avantajlarýndan bahsedilmiþtir. Ardýndan, Hücresel Sinir Aðlarýný karakterize eden nonlineer diferansiyel denklem takýmlarý tanýtýlmýþ ve bu denklemleri gerçekleyen, Chua ve Yang tarafýndan tasarlanmýþ eþdeðer devreler sunulmuþtur. Uygun kaynak dönüþümleri yapýlarak, gerilim kontrollu akým kaynaklarý yerine gerilim kontrollu gerilim kaynaklarý kullanan yeni bir eþdeðer devre türetilmiþtir. Her iki eþdeðerdeki baðýmlý kaynaklar gerçek devreleriyle deðiþtirilerek PSPICE makromodellemesine uygun tam yapýlar elde edilmiþtir. Önerilen makromodellerle kararlý ve kararsýz Hücresel Sinir Aðlarýnýn benzetimleri yapýlmýþ ve tatmin edici sonuçlar gözlenmiþtir. Makromodellerin avantaj ve dezavantajlarý sonuçlar kýsmýnda tartýþýlmýþtýr.
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  • 1
423-436
  • English

REFERENCES

References: 

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