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Now showing items 11-20 of 21
Development of digital signal processing algorithms for image and communication applications
(Northern Illinois University, 1996)
Digital signal processing algorithms are being used in many applications such as noise, interference cancellation, speech processing, equalization, and image processing. Equalization algorithms in digital communications ...
Verification and implementation of periodic active noise control algorithm on application-specific IC-using FPGA technology
(Northern Illinois University, 1998)
Periodic noise in a quiet atmosphere can be very painful and may cause distress and loss of concentration. The work of this thesis consists o f verification of a periodic Active Noise Control (ANC) algorithm using a digital ...
Design and synthesis of audio equalizers by digital signal processing techniques
(Northern Illinois University, 2000)
This thesis proposes methods to design and synthesize audio equalizers with a practical equalizer order. In order to prevent the equalizers from boosting the signals in some frequency regions, we clip the peak portions of ...
Speech compression and echo cancellation algorithm development for digital communication systems
(Northern Illinois University, 1999)
With the development of DSP (Digital Signal Processing) technologies in the last two decades, more and more DSP applications systems have been used in telecommunication applications such as echo cancellation, and speech ...
The design and development of a twin fixed-point parallel DSP architecture for teleconferencing applications
(Northern Illinois University, 1995)
Conventional telephones have grown into a new generation of telephone systems called hands-free telephones. In hands-free telephones, the speaker and microphone are widely separated according to application's need. ...
Pseudo excitation parallel system identification algorithm for fixed point digital signed processor
(Northern Illinois University, 1995)
A common application of the adaptive process is system identification or system modeling. In many real time implementations, because of the poor conditioned input excitation signal and the limited-precision effect as using ...
Integrated full-duplex speaker-phone system with a subband adaptive noise canceler
(Northern Illinois University, 1995)
This thesis presents the design and implementation of a full-duplex speaker-phone system. The existing acoustic echo and line echo are reduced by using adaptive filtering techniques. In this study, the system hardware and ...
Signal analysis and processing on high airflow meter design
(Northern Illinois University, 1991)
High airflow meters in the range of 0.0 SLM (Standard Liters Per Minute) to 200.0 SLM and using a built-in microbridge sensor in flow housing, induce a significant amount of turbulence noise on the output signal. This ...
An efficient multiprocessor implementation of the fast transversal filter
(Northern Illinois University, 1989)
The purpose of this project was to design and develop an efficient multiprocessor system to implement the Fast Transversal Filter (FTF) using commercially available microprocessors. The system was also designed with some ...
An effective approach in generating efficient software for digital signal processors
(Northern Illinois University, 1989)
This thesis presents the development process and implementation procedure of a code-generator software utility that can be used to generate optimized assembly programs for implementing adaptive filters on a digital signal ...