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Enhanced multi-channel active noise control system and real-time implementation for infant incubator
(Northern Illinois University, 2014)
The active noise control (ANC) system is implemented in the infant incubator and confirmed to improve environment effectively for infants. However, the traditional ANC systems cannot be applied directly to incubators without ...
DSP techniques for telecommunication systems
(Northern Illinois University, 1995)
Three digital signal processing (DSP) techniques for telecommunication systems are presented in this thesis. First, a single-channel speech enhancement technique using spectral subtraction algorithm is presented. This ...
Design and development of a floating-point DSP system with single input/output channel for DSP applications
(Northern Illinois University, 1999)
DSP technology has evolved at a tremendous pace in the recent past. Increased clock speeds and processing power due to architectural enhancements have made the implementation of computationally intensive algorithms in real ...
State-variable control of a loudspeaker system using digital signal processing
(Northern Illinois University, 1999)
A loudspeaker system in which velocity feedback is used to control the frequency response is designed and tested. The control is based on state-variable feedback with loudspeaker velocity and force acting on the loudspeaker ...
Digital signal processing techniques for audio applications
(Northern Illinois University, 1999)
This thesis proposes two effective digital signal processing techniques for the audio applications. The full-band technique performs the audio equalization at the full frequency band and the subband technique at the ...
Speech de-reverberation by digital signal processing techniques
(Northern Illinois University, 2001)
Sigma-delta modulation noise shapers for the reduction of bit complexity
(Northern Illinois University, 2001)
Design and implementation of an integrated teleconferencing system
(Northern Illinois University, 1994)
This thesis investigates the use of Digital Signal Processor- based teleconferencing in order to achieve a full-duplex communication system. The focal point of this thesis is the use of a proposed pseudo-Quadrature Mirror ...
On-line nuclear magnetic resonance spectroscopy with adaptive filter using TMS320C30 processor
(Northern Illinois University, 1996)
Nuclear magnetic resonance (NMR) spectroscopy is used to determine molecular structure and obtain physicochemical information about molecular dynamics. This technique has been used mainly for laboratory measurements and ...
Measuring viscosity of liquid using ultra-sonic with digital signal processor
(Northern Illinois University, 1998)
For more than a century, the method of measuring viscosity of liquid has not changed despite the advancement of other measurement techniques. A new technique was invented by Argonne National Laboratory in 1996. A prototype ...