Multiple Model Controller Design for Electropenumatic Servo Actuator

Authors

• Hazim I.
• Qais Abdul lattif, Control & Systems Engineering/University of Technology Baghdad, Iraq
• Goran A. Mohammed, Control & Systems Engineering/University of Technology Baghdad, Iraq

Document Type

Original Study

Abstract

In this work, two OFDM-CDMA models were investigated. Also in this work, OFDM-DS-CDMA model was presented. For further enhancement, discrete wavelet transform based OFDM system was proposed to improve the bandwidth efficiency by removing the cyclic prefix (CP). In the proposed (DWT-OFDM-CDMA) system IDWT and DWT replace the IFFT and FFT, respectively. These systems were simulated and evaluated over Rayleigh selective fading channel. The simulation results include a comparison between all systems with different spreading codes. The result shows that the performance of OFDM system enhanced by CDMA system. Furthermore, the performance of OFDM-CDMA systems is further enhanced using the DWT.

How to Cite This Article

I., Hazim; Abdul lattif, Qais; and Mohammed, Goran A. (2006) "Multiple Model Controller Design for Electropenumatic Servo Actuator," Iraqi Journal of Computers, Communications, Control and Systems Engineering: Vol. 6: Iss. 1, Article 10.
Available at: https://ijccce.researchcommons.org/journal/vol6/iss1/10