Results 241 to 250 of about 546,731 (283)

Universal Filtering Via Prediction

IEEE Transactions on Information Theory, 2007
We consider the filtering problem, where a finite-alphabet individual sequence is corrupted by a discrete memoryless channel, and the goal is to causally estimate each sequence component based on the past and present noisy observations. We establish a correspondence between the filtering problem and the problem of prediction of individual sequences ...
T. Weissman, E. Ordentlich, M.J. Weinberger, A. Somekh-Baruch, N. Merhav   +4 more
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Nyquist 1 universal filters

IEEE Transactions on Communications, 2000
The Nyquist (1928) 1 filters (NFls) with both nonlinear phase response and amplitude response of nonspecified symmetry are investigated. It is shown that one of the filter's responses (amplitude or phase) can be chosen almost arbitrary. The second one is then derived from the condition of zero intersymbol interference (ISI) in data transmission ...
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SINH-DOMAIN UNIVERSAL BIQUAD FILTERS

Journal of Circuits, Systems and Computers, 2014
A family of current-mode universal biquad filters, realized using the concept of Sinh-Domain signal processing, is introduced in this paper. Both of them have the capability for operating in a low-voltage environment and, also, for orthogonal electronic adjustment between the resonance frequency and Q factor.
CHRISOSTOMOS KASIMIS, COSTAS PSYCHALINOS
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CDTA based universal transadmittance filter

Analog Integrated Circuits and Signal Processing, 2007
A new transadmittance-mode (TM) universal filter with three inputs and a single output is presented. The circuit employs only two current differencing transconductance amplifiers (CDTAs), two capacitors one of which is permanently grounded and as many resistors. The proposed circuit realizes lowpass (LP), highpass (HP), bandpass (BP), notch and allpass
Nisar A. Shah, Munazah Quadri, Syed Z. Iqbal   +2 more
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Universal Switching FIR Filtering

IEEE Transactions on Signal Processing, 2012
We revisit recently considered universal finite-impulse-response (FIR) filtering problem and devise a scheme that asymptotically attains the expected mean-square error (MSE) of the best switching FIR filters for every underlying bounded, real-valued signal, provided that the switch rate of the best filters are sufficiently slow. As a performance metric,
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Current mode biquadratic universal filter

2015 IEEE Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics (PrimeAsia), 2015
A current mode universal filter using current controlled differential difference current conveyor transconductance amplifier (CCDDCCTA) is discussed. The filter provides important and desirable features : (i) Uses only one CCDDCCTA and two capacitors, (ii) One can get low pass (LP), band pass (BP), high pass (HP), notch (NF) and all pass (AP) current ...
Ajay Kumar Kushwaha, Sajal K. Paul
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Universal curves for bandpass filters

Proceedings of the IEEE, 1971
Universal curves are presented which permit the determination of bandpass poles when band-edge frequencies and low-pass poles are known. These curves are also useful for band-reject filters.
A. Budak, P. Aronhime
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Filter Design for Universal Filtered Multicarrier (UFMC) based Systems

2019 4th International Conference on Information Systems and Computer Networks (ISCON), 2019
The universal filtered Multi-carrier (UFMC) is the most considerable modulation scheme for next generation wireless networks. The UFMC based system output is highly dependent on the sub-band filter response that used at transmitter end, which influences the emission of sub-band into the adjacent sub-bands and hence inter-carrier interference (ICI) and ...
Rajarao Manda, R. Gowri
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Universal Filtered OFDM with Filter Shift Keying - Invited Paper

2018 IEEE 87th Vehicular Technology Conference (VTC Spring), 2018
Due to its several implementation advantages, orthogonal frequency division multiplexing (OFDM) has become the most frequently used waveform in modern wireless communication technologies. However, OFDM has some vulnerabilities that may limit its advantages.
Selahattin Gokceli, Ertugrul Basar, Gunes Karabulut Kurt   +2 more
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Universal filter using a ‘pseudo’ gyrator

International Journal of Electronics, 2008
A filter based on a ‘pseudo’ gyrator that simultaneously makes a low-pass, band-pass and notch transfer function is presented. By adding another amplifier, this circuit can also make a high-pass and an all-pass filter. Two prototypes using usual op. amp. or current feed-back operational amplifiers (CFOAs) are proposed.
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