Results 211 to 220 of about 103,281 (257)
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Estimation of amplitude and phase parameters of multicomponent signals
IEEE Transactions on Signal Processing, 1995This paper considers the problem of estimating signals consisting of one or more components of the form a(t)e/sup j/spl phi/(t/), where the amplitude and phase functions are represented by a linear parametric model. The Cramer-Rao bound (CRB) on the accuracy of estimating the phase and amplitude parameters is derived.
Benjamin Friedlander, Joseph M. Francos
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Amplitude and Frequency Estimation of Exponentially Decaying Sinusoids
IEEE Transactions on Instrumentation and Measurement, 2018An online method for amplitude and frequency estimation of exponentially decaying sinusoids is proposed with a moving-window discrete Fourier transform (MWDFT) filter and frequency-locked loop. The tuned filter characteristics of MWDFT is modified into more flat characteristic around the center frequency with negative feedback, which increases the ...
P Sumathi
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Amplitude-only versus amplitude-phase estimation
IEEE Transactions on Instrumentation and Measurement, 1990The feasibility of transfer function estimation based on amplitude-only measurements is investigated, and this method is compared with the amplitude-phase (full complex spectrum) method. It is shown that the amplitude-only-based method is a feasible alternative to the full complex spectrum method when the minimum in-phase transfer function of the ...
Rolain, Yves +2 more
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On estimating random amplitude chirp signals
1999 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings. ICASSP99 (Cat. No.99CH36258), 1999This paper considers the problem of estimating the parameters of chirp signals with randomly time-varying amplitude. Two methods for solving this problem are presented. First, a nonlinear least-squares approach (NLS) is proposed. It is shown that by minimizing the NLS criterion with respect to all samples of the time-varying amplitude, the problem ...
Olivier Besson +2 more
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Sequential amplitude estimation in multiuser communications
[1992] Proceedings of the 31st IEEE Conference on Decision and Control, 1994Summary: This paper considers the problem of multiuser amplitude estimation, i.e., the problem of estimating the amplitudes of several digital communications signals superimposed in the same channel. This problem is of importance in communications environments such as spread-spectrum radio networks, in which nonorthogonal multiplexing is used ...
Yossef Steinberg, H. Vincent Poor
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Single site electromyograph amplitude estimation
IEEE Transactions on Biomedical Engineering, 1994Previous investigators have experimentally demonstrated and/or analytically predicted that temporal whitening of the surface electromyograph (EMG) waveform prior to demodulation improves the EMG amplitude estimate [1]-[6]. However, no systematic study of the influence of various whitening filters upon amplitude estimate performance has been reported ...
Edward A. Clancy, Neville Hogan
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Robust estimation of signal amplitude
IEEE Transactions on Information Theory, 1972An iterative estimation procedure involving the use of a light limiter is proposed for obtaining robust estimates of the amplitude of a signal of known form in additive nearly Gaussian noise. In the case of a constant signal the procedure, referred to as the iterative limiter estimator (ILE), is exhibited as a form of stochastic approximation and the ...
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