University of Utah
Department of Electrical Engineering
New Course Announcement - Winter 1996
El En 620: Advanced Digital Signal Processing:
Active Noise and Vibration Control
Prof. Scott C. Douglas
T H 3:20 - 4:45 (3 Units)
EMCB 110
Active noise and vibration control seeks to cancel out an unwanted
acoustic wave in a physical medium (such as air)
by feeding an equal-but-opposite acoustic signal to the medium.
Demonstrated applications of this technology include
active mufflers for automobiles, active suppression of engine
noise in automobile and airplane cabins, active noise suppressors
for HVAC ducts in buildings, active vibration isolation for critical
manufacturing processes, and active headphones. This course introduces
the design concepts, methodologies, and implementations of active
noise and vibration control systems. Topics include
- The physical limits of active noise and vibration control
- Adaptive feedforward control strategies
- Adaptive feedback control strategies
- Single- vs. multi-channel active noise and vibration control
- Sensor and actuator issues
- Examples of active noise control systems
As part of the course, students will work alone or in teams to complete
a project exploring particular issues in active noise and vibration
control.
Prerequisites:
El En 517 or equivalent knowledge of digital signal processing.
El En 612 or equivalent knowledge of random processes.
Knowledge of system identification methods in systems and/or control
(such as that found in El En 617-``Adaptive Filters,'' or El En 648, ``Adaptive Control,'' or as obtained through research and/or industrial experience).
Concurrent enrollment in El En 617 satisfies this requirement but is not
required for enrollment in El En 620.
Course Text:
``Active Noise Control Systems: Algorithms
and DSP Implementations,'' by Sen M. Kuo and Dennis R. Morgan (Wiley, 1996).