Results 241 to 250 of about 358,864 (290)

Analogue synthesiser of orthogonal signals

Signal Processing, 1999
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A new orthogonal transform for signal coding

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1988
The authors propose an orthogonal, unitary transformation called the modified Hermite transformation (MHT) and its extension, which is called the modular modified Hermite transformation (MMHT). The MHT algorithm, which is an efficient algorithm, is explained and explored.
Richard A. Haddad, Ali N. Akansu
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Signal identification based on orthogonal transform

1995 International Conference on Acoustics, Speech, and Signal Processing, 2002
A new approach to the identification of a constant amplitude signal with frequency/phase modulation is investigated. The authors model the incoming signal phase as a linear combination of a set of orthogonal vectors and use the significant coefficients as features for identification.
K. C. Ho 0001, A. E. Scheidl, Robert J. Inkol   +2 more
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Adaptive orthogonalization of opponent-color signals

Biological Cybernetics, 1993
This paper concerns the processing of the outputs of the two opponent-color mechanisms in the human visual system. We present experimental evidence that opponent-color signals interact after joint modulation even though they are essentially independent under neutral steady adaptation and after exclusive modulation of each mechanism.
Qasim Zaidi, Arthur G. Shapiro
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Signal Orthogonal Transforms

2021
In this chapter we learn about orthogonal signal decomposition into a sum of weighted orthogonal functions (decomposition basis) like in Fourier series analysis. The decomposition weights are found by orthogonal transformation of signal samples, i.e. by multiplying them by rectangular orthogonal matrix having complex-conjugated decomposition functions ...
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Optimal robust signaling with pseudonoise-modulated orthogonal signals

IEEE Transactions on Information Theory, 1994
Summary: It is well known that orthogonal signal sets approach the channel capacity and reliability function of the infinite bandwidth additive white Gaussian noise channel. In this note, it is shown that pseudonoise- modulated orthogonal signals play a similar role for the infinite bandwidth Gaussian arbitrarily varying channel.
Tony G. Thomas, Brian L. Hughes
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A note on the orthogonality of MSK signals

1993 IEEE South African Symposium on Communications and Signal Processing, 2002
Minimum shift keying (MSK) got is name from its description as the coherent FSK scheme with the "the minimum frequency spacing which allows the two FSK signals to be coherently orthogonal". This notion is not well defined in the literature. MSK signals are not strictly orthogonal over any bit interval for all frequencies, as a simple calculation shows.
J.A. Schoonees, R.M. Braun
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On orthogonal signal correction

Chemometrics and Intelligent Laboratory Systems, 2000
Abstract A new algorithm for orthogonal signal correction is presented, compared with existing algorithms, and illustrated on an example from near infrared spectroscopy. Given a matrix X of spectral or other high dimensional data and a vector or matrix Y of concentrations or other reference measurements on the same samples, orthogonal signal ...
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Wavelet orthogonal signal correction

Journal of Chemometrics, 2005
AbstractIn this paper a novel signal‐preprocessing technique that combines the local and multiscale properties of the wavelet prism with the global filtering capability of orthogonal signal correction (OSC) is presented for the pretreatment of spectroscopic data. In this hybrid method, referred to as wavelet OSC (WOSC), a separate OSC filter is applied
Robert N. Feudale, Yang Liu, Nathaniel A. Woody, Huwei Tan, Steven D. Brown   +4 more
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Piecewise orthogonal signal correction

Chemometrics and Intelligent Laboratory Systems, 2002
Abstract A novel signal-processing method that performs orthogonal signal correction (OSC) in a piecewise manner, namely piecewise OSC (POSC), is developed and applied to two near-infrared (NIR) data sets of multivariate calibration. Partial least squares (PLS) regression models were constructed for the POSC-corrected spectra, and the results were ...
Robert N Feudale, Huwei Tan, Steven D Brown   +2 more
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