Comments on "Inherent bias in wavefront curvature ranging"
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چکیده
منابع مشابه
Differential wavefront curvature sensor
In this paper, a wavefront curvature sensor is presented. This sensor is based on the measurements of the differentials of wavefront slopes, where the wavefront slope measurements can be achieved by a Shack-Hartmann sensor. A ShackHartmann sensor with three output collimated beams will be introduced with a lenslet array installed in each beam. By shifting two of the Shack-Hartmann grids in the ...
متن کاملTraining to a Neural Net's Inherent Bias
A neural net with multiple output nodes is capable of distinguishing among a set of related input classes even in the absence of training. It can do so with an accuracy that is markedly better than random guessing. This is because each class will tend to activate a different set of output nodes. We refer to this tendency as the net’s ’inherent’ bias. Ascertaining a net’s inherent bias may be th...
متن کاملRole of wavefront curvature in propagation of cardiac impulse.
It is traditionally assumed that impulse propagation in cardiac muscle is determined by the combination of two factors: (1) the active properties of cardiac cell membranes and (2) the passive electrical characteristics of the network formed by cardiac cells. However, advances made recently in the theory of generic excitable media suggest that an additional factor-the geometry of excitation wave...
متن کاملComparison of Phase Diversity and Curvature Wavefront Sensing
We compare phase diversity and curvature wavefront sensing. Besides having completely different reconstruction algorithms, the two methods measure data in different domains: phase diversity very near to the focal plane, and curvature wavefront sensing far from the focal plane in quasi-pupil planes, which enable real-time computation of the wavefront using analog techniques. By using information...
متن کاملInhibition of Curvature Responses by Shunting the Inherent Electrical Field.
In studies of the bioelectric fields of the onion root, ROSENE (2) found that the magnitude of the longitudinal polarity was decreased or shunted when a jacket of tap water was placed around a segment of the root between the contacts. When the shunt was removed, the polarity quickly returned to practically its former level. Similar results were obtained by WnKs and LUND (7) from their experimen...
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ژورنال
عنوان ژورنال: IEEE Transactions on Acoustics, Speech, and Signal Processing
سال: 1982
ISSN: 0096-3518
DOI: 10.1109/tassp.1982.1163839