Results 241 to 250 of about 1,652,410 (283)
Some of the next articles are maybe not open access.
A Universal Image Forensics of Smoothing Filtering
International Journal of Digital Crime and Forensics, 2019Digital image smoothing filtering operations, including the average filtering, Gaussian filtering and median filtering are always used to beautify the forged images. The detection of these smoothing operations is important in the image forensics field. In this article, the authors propose a universal detection algorithm which can simultaneously detect ...
Anjie Peng +4 more
openaire +2 more sources
Universal Filtered OFDM with Filter Shift Keying - Invited Paper
2018 IEEE 87th Vehicular Technology Conference (VTC Spring), 2018Due 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 Gökceli +2 more
openaire +3 more sources
Universal Switching FIR Filtering
IEEE Transactions on Signal Processing, 2012We 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,
openaire +1 more source
Universal filter using a ‘pseudo’ gyrator
International Journal of Electronics, 2008A 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.
openaire +2 more sources
Universal curves for bandpass filters
Proceedings of the IEEE, 1971Universal 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
openaire +1 more source
Adaptive Modulation and Filter Configuration in Universal Filtered Multi-Carrier Systems
IEEE Transactions on Wireless Communications, 2018Universal filtered multi-carrier (UFMC) is a potential waveform technology, which can efficiently combat different carrier frequency offsets (CFOs) of multiple users. First, adaptive modulation and power allocation are applied for each subcarrier to meet a preset bit error rate (BER) requirement by ignoring CFOs. Then, we prove that different CFOs will
Xiao Chen 0005 +4 more
openaire +2 more sources
Universal Kriging of RSS Databases in a Bayesian Filter
2018 21st International Conference on Information Fusion (FUSION), 2018Received signal strength (RSS) based navigation is chosen for many indoor propagation scenarios because of the high availability and low cost of the needed infrastructure. Usually, RSS-based navigation relies on fingerprinting techniques. TRe-cently, methods for the spatial interpolation of RSS databases, including ordinary and universal Kriging have ...
Sebastian Kram +3 more
openaire +2 more sources
An Universal Active Power Filter Controller System
2009 IEEE Industry Applications Society Annual Meeting, 2009An universal active power filter controller system is proposed that adapts itself to both harmonic current source type loads as well as harmonic voltage source type loads is presented in this paper. The system level harmonic filtering application issues of a multiple and clustered harmonic producing load site, such as at an industrial load site or at a
Subhashish Bhattacharya +2 more
openaire +2 more sources
Universal transadmittance filter using CMOS MOCDTA
2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN), 2014This paper presents a new realization of transadmittance mode universal filter having three inputs and single output. The circuit employs two current differencing transconductance amplifier (CDTA), two capacitors and two resistors. One of the CDTA has multiple outputs hence, called MOCDTA.
Pushpanjali Singh +3 more
openaire +1 more source
Current-mode Active-only Universal Filter
APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems, 2006A universal current-mode active-only filter using the biquadratic transfer function is proposed. The proposed circuit is realized by minimized active-only components count without external passive elements. The different kinds of filter function as lowpass, highpass, bandpass and band-reject response can be obtained without changing circuit topology ...
Pipat Prommee +2 more
openaire +2 more sources