time-frequency filter banks
Optimized Paraunitary Filter Banks for Time-Frequency Channel Diagonalization
... to time-frequency signal expansions obtained by DFT filter ...the frequency domain channel representation used by conventional orthogonal frequency-division multiplexing receivers, the ...
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Analysis and Properties of Time-Varying Modified DFT Filter Banks
... cosine-modulated filter banks, the DFT polyphase filter bank has advantages such as lin- ear phase, complex-valued signal processing, and better frequency characteristics in each ...polyphase ...
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Filter Banks from the Fibonacci Sequence
... Abstract: Wavelet transform is an important quadratic representation in time-frequency domain of signals. The main advantage of wavelet transform is the time frequency localization as compared ...
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Contourlet Filter Design Based on Chebyshev Best Uniform Approximation
... Images have been e ff ectively modeled using the wavelet transform [1–4], which offers a mutliscale and time- frequency localized image representation. But the major drawback of wavelets in two-dimensions is ...
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Efficient Implementation of Complex Modulated Filter Banks Using Cosine and Sine Modulated Filter Banks
... at time, whereas the MDFT-FB takes in 2M complex-valued input ...highly frequency-selective channels is de- sired, then the EMFB structure o ff ers significant improve- ments over the MDFT-FB ...
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Designing digital filter banks using wavelets
... both time and wavelet transform domains, it is interesting to partition the en- ergy into several frequency sub-bands for several appli- ...wavelet filter bank, according to a criterion of perfect ...
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Cosine Modulated Non Uniform Filter Banks
... Multirate filter bank find wide applications in many areas of digital signal processing such as sub-band coding, transmultiplexer, image, video and audio compression, adaptive signal processing ...of time- ...
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Effect of frequency domain attributes of wavelet analysis filter banks for structural damage localization using the relative wavelet entropy index
... Vibration-based structural health monitoring (VSHM) techniques are commonly employed to detect and to localize damage in engineering structures and structural components due to degradation over time under ...
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Flexible Frequency-Band Reallocation Networks Using Variable Oversampled Complex-Modulated Filter Banks
... The problem addressed here was outlined in [1] and is based on multiple frequency time division multiple access (MF/TDMA) schemes. The input signal is divided into Q fixed granularity bands. Any user can ...
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Discriminative frequency filter banks learning with neural networks
... learnable filter banks is first investigated in ...the filter banks are com- posed of a finite or infinite number of ...in filter banks in the time-domain is ...
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Fast time-varying linear filters for suppression of baseline drift in electrocardiographic signals
... linear time-varying filtering, with extremely low computational costs, for the suppression of baseline drift in electrocar- diographic (ECG) ...linear filter, we need a high-pass filter with ...
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Design of Two-Channel Low-Delay FIR Filter Banks using Constrained Optimization
... low-delay filter banks that apply to PR biorthog- onal filter banks as well as to QMF ...design filter banks with a very small delay compared to the filter orders, because ...
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Polynomial based Design of CIC Compensation Filter used in Software Defined Radio for Multirate Signal Processing
... CIC filter. CIC filter has lot of advantages mainly of being multiplierless device including only simple adder and delay ...decimation filter make the circuit to work at low frequencies as well as ...
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Time-frequency analysis of band-limited EEG with BMFLC and Kalman filter for BCI applications
... alternative time-frequency analysis methods for band-limited ...the frequency-based BCI applications rely on amplitude features in a fixed frequency band (μ rhythm) for classification, BMFLC- ...
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Study of EOG signal generation, Analyses, and acquisition system
... notch filter is designed and tested for 50 ...the frequency used for power supply is 230v and 50Hz hence to remove the power supply noise we used notch filter for that ...the frequency used ...
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DA Based FIR Filter Design Analysis using Different LUT Partitions
... (FIR) filter using field programmable gate ...based filter Lookup tables (LUTs) are implemented using ...FIR filter we are using FPGA. The proposed filter supports for maximum input sampling ...
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Performance Evaluation of PAPR Reduction Techniques in Filter Bank Based Multicarrier Systems in AWGN and Fading Channels
... Orthogonal Frequency division Multiplexing (OFDM) is a multicarrier modulation technique which supports high data rate transmission and are widely used in digital audio/ video broadcasting, WiFi and ...as ...
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Time-Varying Frequency Fading Channel Tracking In OFDM-PLNC System, Using Kalman Filter
... Kalman Filter-based algorithm for tracking the frequency/time fading channel in this ...the time domain while data detection is implemented in the frequency ...
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Chromatic dispersion compensation in coherent transmission system using digital filters
... adaptive filter were preliminarily analyzed by comparing with the FD-FIR filter and the blind look-up filter in our previous work ...adaptive filter, acting as a band-limit filter, can ...
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Estimation of Upper Bound for Order of Filters used in Perfect Reconstruction Filter Banks
... In digital signal processing there is a need to decompose signals into low and high frequency bands, and later they are required to be combined to reconstruct the original signal. Perfect reconstruction is a ...
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