Search Results - "Haddad, A.P."

Implementing Wavelets in Continuous-Time Analog Circuits With Dynamic Range Optimization by Karel, J. M. H., Haddad, S. A. P., Hiseni, S., Westra, R. L., Serdijn, W. A., Peeters, R. L. M.

“…Signal processing by means of analog circuits offers advantages from a power consumption viewpoint. A method is described to implement wavelets in analog…”
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A novel wavelet-based analog-to-digital converter by Martins, Isadora F., de Medeiros, Jose E. G., de Andrade, Jose A. A., Haddad, Sandro A. P.

“…This paper presents an analog-to-digital converter with a novel adaptive wavelet-based sampling scheme. The proposed algorithm uses the wavelet transform to…”
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Log-domain wavelet bases by Haddad, S.A.P., Bagga, S., Serdijn, W.A.

“…A novel procedure to approximate wavelet bases using analog circuitry is presented. First, an approximation is used to calculate the transfer function of the…”
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Codesign of an impulse generator and miniaturized antennas for IR-UWB by Bagga, S., Vorobyov, A.V., Haddad, S.A.P., Yarovoy, A.G., Serdijn, W.A., Long, J.R.

“…The codesign of an impulse generator and miniaturized antennas for ultra-wideband impulse radio is described. The impulse generator, discussed by Bragga in…”
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An ultra low power CMOS pA/V transconductor and its application to wavelet filters by Agostinho, Peterson R., Haddad, Sandro A. P., De Lima, Jader A., Serdijn, Wouter A.

“…Two compact ultra low-power CMOS triode transconductor topologies denoted VLPT-g m and Delta-g m are proposed. In both circuits, input transistors are kept in…”
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Integration of a Pulse Generator on Chip Into a Compact Ultrawideband Antenna by Vorobyov, A.V., Bagga, S., Yarovoy, A.G., Haddad, S.A.P., Serdijn, W.A., Long, J.R., Irahhauten, Z., Ligthart, L.P.

“…For impulse radio ultrawideband communications an ldquoantenna plus generatorrdquo system is co-designed and an on chip generator is integrated into the…”
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Use of the Polymerase Chain Reaction–Sequence Specific Oligonucleotide Technique for the Detection of the K1/K2 Polymorphism of the Kell Blood Group System by Mifsud, N.A., Haddad, A.P., Sparrow, R.L., Condon, J.A.

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Design of a PSWF impulse response filter for UWB systems by Neves, Leonardo C., de Araujo, G. M., da Costa, J. C., Haddad, S. A. P.

“…This work presents a method of UWB pulse generation based in Prolate Spheroidal Wave Functions (PSWF). The method consists of a numerical approximation, a…”
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The use of the analog wavelet filter to generate a sinusoidal signal and decompose the TEB signal into its cardiac and respiratory components in implantable cardiac pacemaker systems by Leal, Guilherme T., Haddad, Sandro A. P.

“…A sinusoidal signal generator and signal decomposition filter are presented for use in systems to measure thoracic bioimpedance (TEB) in implantable cardiac…”
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Nonlinear quantizer design in data conversion systems using the unscented transform by Medeiros, Jose E. G., Haddad, Sandro A. P.

“…This paper presents a novel approach to the design of signal specific quantizers based on the Unscented Transform. This is done in such a way that we preserve…”
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A UWB transformer-C orthonormal state space band-reject filter in 0.13 μm CMOS by Bagga, S., Irahhauten, Z., Haddady, S.A.P., Serdijn, W.A., Long, J.R., Pekarik, J.J.

“…An RF passive orthonormal ladder filter using transformers is presented, where the output is obtained from a linear, weighted combination of the voltages or…”
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Analog complex wavelet filters by Haddad, S.A.P., Karel, J.M.H., Peeters, R.L.M., Westra, R.L., Serdijn, W.A.

“…This paper presents an analog implementation of the complex wavelet transform using both the complex first order system (CFOS) and the Pade approximation. The…”
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Nonlinear Quantization Technique for Multibit Sigma-Delta Modulators by Costa, Laryssa L. O., Medeiros, Jose E. G., de Andrade, Jose A. A., Haddad, Sandro A. P.

“…This paper presents a nonlinear quantization technique applied in a multibit sigma-delta \Sigma\triangle modulator. The technique is based on the unscented…”
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An interference rejection filter for an ultra-wideband quadrature downconversion autocorrelation receiver by Bagga, S., Haddad, S.A.P., van Hartingsveldt, K., Lee, S., Serdijn, W.A., Long, J.R.

“…An analog filter is designed based upon the requirement of an interference rejection filter for the quadrature downconversion autocorrelation receiver (QDAR)…”
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A fully analog low-power wavelet-based Hearing Aid Front-end by Medeiros, Jose E. G., Chrisostomo, Lucas A. P., Meira, Gabriela, Toledo, Yuri C. R., Pimenta, Matheus, Haddad, Sandro A. P.

“…This paper presents a new low-power Hearing Aid Front-end based on an analog wavelet transform signal processing. The system consists of an analog wavelet…”
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The evolution of pacemakers by Haddad, S.A.P., Houben, R.P.M., Serdijin, W.A.

“…A brief overview of the history and development of circuit designs applied in pacemakers has been presented. The advances in IC designs have resulted in…”
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UWB pulses generator filter for M-ary communication systems by Neves, L. C., de Araujo, G. M., da Costa, J. C., Madureira, H. M. G., Haddad, S. A. P.

“…This work proposes an M-ary communication system based on PSWF pulses. First, a State Space Filter whose impulse response is a PSWF pulse is developed. Then,…”
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Optimal discrete wavelet design for cardiac signal processing by Karel, J.M.H., Peeters, R.L.M., Westra, R.L., Moermans, K.M.S., Haddad, S.A.P., Serdijn, W.A.

“…The question of designing the best wavelet for a given signal is discussed from the perspective of orthogonal filter banks. Two performance criteria are…”
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Multiwavelet Design for Cardiac Signal Processing by Peeters, R.L.M., Karel, J.M.H., Westra, R.L., Haddad, S.A.P., Serdijn, W.A.

“…An approach for designing multiwavelets is introduced, for use in cardiac signal processing. The parameterization of the class of multiwavelets is in terms of…”
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An L2-based approach for wavelet approximation by Karel, J.M.H., Peeters, R.L.M., Westra, R.L., Haddad, S.A.P., Serdijn, W.A.

“…computation in the analog domain is very appealing from a power-consumption perspective. To implement a wavelet transform in an analog circuit, the wavelet…”
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