frequency domain signal processing
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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Human Brain Microwave Imaging Signal Processing: Frequency Domain (S parameters) to Time Domain Conversion
... from frequency domain rather than direct measurement of time domain data ...better signal-to-noise (SNR) ratio due to the narrowband measurements, the possibility of performing error correc- ...
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Nonstationary Interference Excision in Time Frequency Domain Using Adaptive Hierarchical Lapped Orthogonal Transform for Direct Sequence Spread Spectrum Communications
... the signal time- frequency structures and splits the time axis blindly with equal segments, it does not always yield good results if the characteristics of the interference are not known in ...the ...
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Broadband Beamspace DOA Estimation: Frequency-Domain and Time-Domain Processing Approaches
... Incoherent signal-subspace methods such as [1, 2] perform narrowband DOA estimation for each frequency bin and then statistically combine the resulting es- timates to form a broadband DOA ...herent ...
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FREQUENCY DOMAIN BASED DATA HIDING TECHNIQUE FOR AUDIO SIGNAL
... Abstract: Audio watermarking has been proved as a possible solution to avoid illegal usage of audio files. It embeds copyright information into audio files as a proof of their ownership. This paper deals with the design ...
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Zero Forcing Frequency Domain Equalization for Generalized DMT Transceivers with Insufficient Guard Interval
... the Signal Processing Department of ENST, Paris, France, and at the Mutirate Signal Processing Group, University of Wisconsin, Madison, respectively, working on modulated filter ...multirate ...
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Elementary Time Frequency Analysis of EEG Signal Processing
... performed out using discrete Fourier Transform (DFT), discrete cosine transform (DCT) etc. But these tools for analysis has an disadvantage that spectrum of the signals is degraded due to short term windowing analysis ...
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Analysis of flank and root crack in the spur gear using vibration signal technique for single stage gear box
... important role during the transmission of the power between the two shaft .The research approaches is based on gear defects or faults in power transmission system can be found out by processing of their vibration ...
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Speech Enhancement Based on Spectral Subtraction Involving Magnitude and Phase Components
... speech signal by using speech enhancement technique based on single-band spectral ...add processing) and calculate the corresponding magnitude spectrum using the FFT, removing the noise from the noisy ...
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Wideband Impulse Modulation and Receiver Algorithms for Multiuser Power Line Communications
... receiver signal processing algorithms and derive a maximum likelihood frequency-domain detector that takes into account the presence of impulse noise as well as the intercode interference ...
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Development of a Free Space, LED Illuminated Spectral domain Optical Coherence Tomography Setup
... spectral domain optical coherence tomography has been demonstrated using an 8 mW ultra-bright 850 nm light-emitting diode with a 40 nm spectral ...spectrum. Processing of interference fringe signals from ...
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Fast Fourier Transform Using Advanced Processor
... digital signal processing components that can efficiently calculate the ...into frequency domain signal (complex form) IFFT operation converts the frequency domain ...
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Fast Fourier Transform Approach for Signal Analysis
... time domain signal into frequency domain signal and vice versa and fast Fourier transform (FFT) is a mathematical tool which convert discrete time domain signal into ...
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On the Compensation of Delay in the Discrete Frequency Domain
... “frequency domain adaptive filter” (FDAF) [1] is often applied to any adaptive digital filter that incorporates a degree of frequency domain ...quency domain” processing, by ...
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Combined Frequency and Spatial Domain Algorithm for the Removal of Blocking Artifacts
... In B-DCT the quantization noise is highly correlated with the characteristics of the original signals, so that dif- ferent areas of the coded image suffer from distinctly dif- ferent impairments. In particular, the ...
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Partitioned block frequency domain prediction error method based acoustic feedback cancellation for long feedback path
... save method has been used to implement the PBFD; the IR block size has been set with P = 160, together with a M ×M DFT matrix with M = 2P. Since speech is considered to be stationary during 20ms frames, the block length ...
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McGraw Hill Telecommunications Demystified pdf
... In twisted-pair cable, a signal is sent from one point to another as a current along a wire. Signals that are sent in the frequency range of 0 to 1 MHz can be supported. The most common use for twisted-pair ...
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Evaluation of Optimized PAPR and BER of OFDM signal by using Clipping and Filtering Technique
... Abstract:-Orthogonal Frequency Division Multiplexing (OFDM) is an emerging field of research in the field of wireless communication and finds its application where high data rate is required at low latency and ...
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International Journal of Computer Science and Mobile Computing
... Usually speech signal is pre-emphasized before any further processing. By looking at the spectrum of voiced segments we can see that the energy in the voice samples distributes more in the lower frequencies ...
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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 real-time ...
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