Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 111 for “"Filter design"”.
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Switch capacitor filter design aids
Two aids for the design of switched-capacitor filters (SCFs) are examined: breadboard modelling and computer simulations. A breadbroad was constructed based upon the same passive prototype of a seventh-order integrated filter. The breadboard met the original design specifications better than the …
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A zero-crossing switched-capacitor filter design
Design of switched capacitor circuits in scaled CMOS technologies is becoming difficult because of low device intrinsic gain and reduced power supply voltage. To solve these problems, comparator-based switched-capacitor (CBSC) circuits and zero-crossing based circuits (ZCBC) were suggested as a …
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Piezoelectric MEMS resonator characterization and filter design
… at Draper Laboratory. In addition, some simple filter designs incorporating the resonator with predicted performance parameters were analyzed, with a special focus on the suitability of using the Draper resonator to implement these filters. The four-element Butterworth Van-Dyke model, the …
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Digital audio filter design using frequency transformations
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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Bandpass filter design with spurious frequency reduction capability
Passband microstrip coupled line filter are widely used in daily microwave engineering practice. There are various topologies to implement microstrip bandpass filters such as end-coupled, parallel coupled, hairpin, interdigital and combine filters. This thesis discusses design, simulation, …
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A computational tool for microstrip planar filter design
Filters are very important part of any communication system. Naturally, RF and microwave systems belong to these systems. Microwave filters are needed in a wide range of applications including satellite communications and wireless communications as well as military applications. Planar filters …
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Optimal digital filter design for dispersed signal equalization
… we investigate the derivation of a digital filter to compensate for the dispersion caused by the ionosphere. A transfer function model for the analysis of the ionosphere as a system is introduced. Based on the signal model, a matched filter response is derived. The problem is formulated as a …
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Iterative least squares algorithms for digital filter design.
… new algorithms to simplify and improve the design of IIR digital filters and M-band cosine modulated filter banks. These algorithms are based on the Iterative Least Squares (ILS) approach. We first review the various Iterative Reweighted Least Squares (IRLS) methods used to design Chebyshev …
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Optimisation of multiplier-less FIR filter design techniques
This thesis is concerned with the design of multiplier-less (ML) finite impulse response (FIR) digital filters. The use of multiplier-less digital filters results in simplified filtering structures, better throughput rates and higher speed. These characteristics are very desirable in many DSP …
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Combinatorial structures and filter design in information spaces
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2013-03-18T15:56:28Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Jingjin.Yu.Thesis.pdf: 5836747 bytes, checksum: 3eb6d3859f8759ae7f5b8aea14208ae1 (MD5)
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A new filter design for airborne disease transmission
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01
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Sparse equalizer filter design for multi-path channels
… Finite Impulse Response (FIR) equalizers are designed for sparse multi-path channels under a pre-defined Mean Squared Error (MSE) constraint. We start by examining the intrinsic sparsity of the Zero Forcing equalizers and the FIR Minimum MSE (MMSE) equalizers. Next the equalization MSE is …
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Conducted EMI Noise Prediction and Filter Design Optimization
… related the boost inductor selection during the design of the PFC power stage. Therefore, unlike the traditional constant-frequency PFC converter, the selection of the boost inductor is also part of the EMI filter design process and EMI filter optimization should begin at the same time when the …
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Digital Filter Design Using Improved Artificial Bee Colony Algorithms
Digital filters are often used in digital signal processing applications. The design objective of a digital filter is to find the optimal set of filter coefficients, which satisfies the desired specifications of magnitude and group delay responses. Evolutionary algorithms are population-based …
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The effects of spectral estimation on matched filter design
Moving-average matched filters (MAMF's) are a class of digital filters used to detect the presence of a known signal in noise. Designing matched filters requires knowledge of the structure of the signal and the noise. If the spectral density of the noise is not known or is changing with time its …
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The Use of Multiple Criterion Optimization in Digital Filter Design
… criterion optimization techniques to digital filter design. The potential role of multiple criterion optimization in digital filter design seems rather promising as the examples of Chapter 7 illustrate.
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Digital Filter Design and Synthesis Using High-level Modeling Tools
… is to formulate a technically sound approach to designing Infinite Impulse Response (IIR) digital filters using high-level modeling tools. High-level modeling tools provide the ability to build and simulate ideal models. Once proper validation is complete on these ideal models, the user can then …
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FIR filter design using Jacobian elliptic Sn function with wavelet applications.
This thesis presents a new method of digital FIR filter design based on the Jacobian elliptic sine function. In addition to a general design, a special result is obtained for Quadrature Mirror Filters (QMF) for use in multi-resolution filter banks. These are called Quasi-Dyadic FIR filters. Most of …
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Two-dimensional zero-phase FIR filter design with nonuniform frequency sampling
The present thesis is concerned with design techniques for two-dimensional zero-phase finite impulse response digital filters with nonuniform frequency samples. Using the freedom and flexibility of the nonuniform frequency sampling, several techniques for taking samples in the frequency plane have …
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Pulse Shaping Filter Design and Interference Analysis in UWB Communication Systems
… First, a 2-stage optimal UWB pulse shaping filter design procedure is proposed, which not only satisfies the FCC transmission spectral masks but also suppress the multiple access interference (MAI). The major advantages of the proposed joint optimization method are: (1) it has superior MAI …
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