Search Results - "Abeysekera, S.S."

Efficient frequency estimation using the pulse-pair method at various lags by Abeysekera, S.S.

“…The pulse-pair (PP) method is an efficient time-domain-based technique of frequency estimation, which requires a very low number of multiplications, thus…”
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Efficient Wideband Parameter Estimation Using Arbitrary Enveloped LFM Signals via Hermite Decompositions by Abeysekera, S.S., Raihan, S.M.

“…Signals with finite time support are frequently used in active sonar and radar processing. In these applications, for efficient computations, it is necessary…”
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Performance of correlation-based frequency estimation methods in the presence of multiplicative noise by Zhi Wang, Abeysekera, S.S.

“…This paper provides a comprehensive performance evaluation of a correlation-based frequency estimator under different fading channel conditions. The efficiency…”
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An investigation of window effects on the frequency estimation using the phase vocoder by Abeysekera, S.S., Padhi, K.P.

“…Sinusoidal models have long been used in the processing of audio signals. Many of these models are usually used to select significant frequencies in the…”
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Performance of pulse-pair method of Doppler estimation by Abeysekera, S.S.

“…Because of its simplicity, the pulse-pair method is usually used in the estimation of Doppler from backscattered acoustic signals. In the literature, various…”
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Analysis of true jitter arising from pulse-stuffing schemes by Abeysekera, S.S.

“…In synchronous digital hierarchy and plesiochronous digital hierarchy networks, it is frequently necessary to recover a data clock from a gapped clock derived…”
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Analysis of adaptive threshold modulation used in pulse stuffing and pointer adjustment schemes by Abeysekera, S.S.

“…Pulse stuffing and pointer adjustment are necessary for clock rate adaptation in synchronizers used in synchronous digital transmission networks (e.g.,,…”
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Design of optimal and narrow-band Laguerre filters for sigma-delta demodulators by Abeysekera, S.S., Yao Xue, Charoensak, C.

“…Conventional sigma-delta (/spl Sigma/-/spl Delta/) decimation methods are not optimal because the downsampling operation following the noise-shaping filters…”
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Efficient Wideband Spreading Function Estimation Using Arbitrary Shaped LFM Signals via Hermite Decompositions by Abeysekera, S.S., Sharif, R.

“…In active imaging, information such as range and velocity of a target can be obtained by transmitting a signal and processing the received signals. Signal…”
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Frequency estimation using the pulse-pair method in different fading environments by Zhi Wang, Abeysekera, S.S.

“…The pulse-pair (PP) method is an efficient technique of frequency estimation, which requires a very low number of multiplications. Therefore, it is ideally…”
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Efficient wideband sonar parameter estimation using a single slice of Radon-ambiguity transform by Sharif, M.R., Abeysekera, S.S.

“…A novel efficient technique, based on a Radon-ambiguity transform (RAT), for time delay and Doppler stretch estimation is presented. The proposed approach…”
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Frequency estimation from multiple lags of correlations in the presence of MA colored noise by Zhi Wang, Abeysekera, S.S.

“…This paper provides a new frequency estimator based on the multiple lags of autocorrelations with discrete Fourier transform (DFT) phase unwrapping. It is…”
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Implementation of a zero-forcing residue equalizer using a Laguerre filter architecture by Abeysekera, S.S.

“…A zero-forcing equalizer, based on the Laguerre filter architecture is proposed. The equalizer is designed using the residues and poles of the estimated…”
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Bandpass sigma-delta (/spl Sigma/-/spl Delta/) architecture based efficient FM demodulator for software radio by Abeysekera, S.S.

“…A bandpass sigma-delta (/spl Sigma/-/spl Delta/) modulator architecture based FM demodulator, suitable for software radio technology is investigated. The I-F…”
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Multiple pitch estimation of poly-phonic audio signals in a frequency-lag domain using the bispectrum by Abeysekera, S.S.

“…This paper describes a multiple pitch estimation technique that is based on the bispectrum of the audio signal. Via the bispectrum a 2D (frequency-lag)…”
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Instantaneous frequency estimation from FM signals and its use in continuous phase modulation receivers by Abeysekera, S.S.

“…This paper discusses the use of a recently proposed algorithm for efficient instant frequency estimation. The method is used in an application in digital…”
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Efficient frequency estimation using the pulse-pair method at different lags by Abeysekera, S.S.

“…The pulse-Pair (PP) method is an efficient technique of frequency estimation, which requires a very low number of multiplications. Therefore, it is ideally…”
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Performance analysis of an autocorrelation based frequency tracker for LFM and QFM signals by Abeysekera, S.S.

“…This paper provides a detailed analysis of a recently proposed algorithm for efficient frequency estimation and tracking. A correlation based Pulse-Pair (PP)…”
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Novel blind channel amplitude and phase spectra estimation technique using 2/sup nd/ order statistics by Abeysekera, S.S.

“…Blind channel estimation using 2/sup nd/ order statistics of the over-sampled received signal with the exploitation of signal cyclo stationary properties, has…”
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Efficient time varying frequency tracking using recursive estimation by Abeysekera, S.S.

“…This paper presents performance results of an algorithm for efficient time varying frequency estimation and tracking. The algorithm is implemented with a small…”
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