Linear phase variable filters that are obtained with a frequency transformation of the form cos(ω) = P(cos(W)) were analyzed, where P is a finite degree polynomial, ω is the prototype frequency and W is the transformed filter frequency. A new transformation of third order is proposed. The new variable filter...
The experiment described in this paper was designed and carried out to study the ability of five provenances of white spruce of acid soil origin and five provenances of basic soil origin grown on an did and a basic soil to utilize and respond to the five macro-nutrient elements N,...
Increasing automation and highly flexible manufacturing processes cause increasing complexity for manufacturing system. FMS (Flexible Manufacturing System) is an approach to solve this problem. Since the elements of the FMS and manufacturing process performance are closely interrelated, the application of simple modeling and emulation techniques in the planning stages for...
This dissertation introduces a new idea for frequency
domain deconvolution of speech signals. The idea is to
approximate a unit sample by a Gaussian pulse. The
deconvolution is performed by designing a glottal inverse
filter that will estimate the excitation of the vocal tract.
Then, the excitation will be used...
Frequency domain design of deconvolution filters is
studied using Fast Fourier Transform. Filters for both the
spike and the Gaussian reflector wavelet are obtained. True
deconvolution filters are infinitely long IIR filters,
and frequency domain analysis is an effective way of
finding its optimum finite length approximation for an
arbitary...
The resolution of multiple overlapped reflections is
achieved by designing inverse filters using frequency
domain deconvolution. A careful study reveals a number of
problems involving frequency domain design of spike inverse
filters. These include the presence of noise and aliasing
in both the filter response and its output resulting from...