Time frequency signal processing
OTDM add drop multiplexer based on time frequency signal processing
... oped for WDM systems. Several devices for WDM add–drop multiplexing have been proposed and demonstrated using var- ious filtering technologies such as arrayed waveguide gratings, FBGs, Mach–Zehnder filters, and ring ...
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Time-Frequency Signal Processing Based on Fractional Fourier Transform in Passive Sonar Classification
... in signal processing and other various branches of science and ...a signal, represents the signal infrequency domain and zero-order Fractional Fourier Transform describes the signal in ...
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Time-Frequency Signal Processing for Automated Infant Cry Classification
... The infant cry classification analysis implies objective methods, classification of different pattern of infant cry utterances and adoption of artificial and digital signal processing approaches. It is an ...
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Human Brain Microwave Imaging Signal Processing: Frequency Domain (S parameters) to Time Domain Conversion
... transformed time do- main data from frequency domain rather than direct measurement of time domain data ...better signal-to-noise (SNR) ratio due to the narrowband measurements, the ...
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Video Frames Reconstruction Based on Time-Frequency Analysis and Hermite Projection Method
... Video signal exchange and storage are very important in multimedia ...video processing techniques are needed, such as video compression algorithms, video denoising methods, and scene analysis ...
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Elementary Time Frequency Analysis of EEG Signal Processing
... are time domain signals but these signals provide other information related to brain in frequency domain with imaging tools to visualize ...The time frequency analysis of EEG signal is ...
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1. Multi-rate signal processing sub-band coding for speech signal
... digital signal processing such as Tele-communication systems, transmitting different types of signals with different rates of Band widths and retaining the quality of speech signal is an important ...
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DOA Estimation Using Time-Frequency Conversion Pre-Processing Method
... image processing and acoustic signal processing for noise ...interference signal included in processing ...a time-frequency conversion pre-processing method with a ...
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Time Encoded Signal Processing and Recognition of Incipient Bearing Faults
... Elements Dimension Characteristic Frequency Roller diameter 14mm Outer race = 83.3Hz Rollers‟ number 9 Roller element = 48.3Hz Contact angle 0˚ Inner race = 134.4Hz Pitch diameter 59mm Cage frequency=9.5Hz ...
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Approximating the Time-Frequency Representation of Biosignals with Chirplets
... spatial frequency of these oscillations is a function of the distance between the components in time and ...low frequency interference also appears as a result of the signal’s instantaneous ...
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ECG Signal Analysis: Different Approaches
... ECG signal in the field of ...the signal is used for next data processing like heart rate frequency ...and signal processing should be designed very effective for next ...
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Modified Algorithm for Real Time SAR Signal Processing
... SAR signal processing which plays a major role in convolution process of range and azimuth ...digital processing [15–18] are available. In order to process the signal digitally either with ...
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Direct RF Sampling GNSS Receiver Design and Jitter Analysis
... high frequency ADC from Atmel, the AT84AS004, was selected for this function because of its very low jitter ...data processing that follows are realized within the RxGNSS, which uses the Lyrtech VHS-ADC ...
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On-chip frequency combs and telecommunications signal processing meet quantum optics
... Optical frequency combs, which are broadband optical sources that have equidistantly-spaced spectral modes, directly suit this ...locations, frequency combs have served as extremely precise optical rulers, ...
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Intelligent Fault Detection of Retainer Clutch Mechanism of Tractor by ANFIS and Vibration Analysis
... acquisition, signal proc- essing and feature extraction and classification of ...from time zone to frequency zone in signal processing, calculating the most important features in ...
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Advanced Time-Frequency Representation in Voice Signal Analysis
... sampling frequency of 10kHz. TF analysis was performed in Matlab using the Time-Frequency ...reduce processing time, processing was performed on samples with a reduced sampling ...
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Irregularity detection in artificial signal using time frequency analysis
... typical time signal contain overwhelming amounts of data and some of the signal components represent for irregularity such as crack and leak which greatly important to be identified precisely instead ...
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Early detection of sudden cardiac death by using classical linear techniques and time frequency methods on electrocardiogram signals
... by processing of heart rate variability signal through the classical and time-fre- quency ...(HRV) signal. Five features in time domain and four features in frequency domain are ...
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Adaptive Algorithm for Chirp-Rate Estimation
... Instantaneous frequency (IF) estimation is a challenging topic in the signal processing ...phase. Time-frequency (TF) representations are main tools for nonparametric IF ...the ...
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Audio Signal Processing Using Time-Frequency Approaches: Coding, Classification, Fingerprinting, and Watermarking
... 4.2.1. Audio Database. The lack of a common dataset does not allow researchers to compare the performance of di ff erent audio classification methodologies in a fair manner. Some literatures report an impressive accuracy ...
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