Results 271 to 280 of about 907,352 (310)
Some of the next articles are maybe not open access.

Indirect Methods for Estimating the Normal Range

American Journal of Clinical Pathology, 1969
Normal ranges for laboratory tests are customarily determined by results of test values from healthy persons. Patients’ laboratory test results recently have been analyzed by statistical and computer technics in an effort to obtain indirect estimates of the normal ranges. The present study was designed to examine the accuracy of normal ranges estimated
Elias Amador   +2 more
openaire   +2 more sources

Robustness of the least squares range estimator

2016 Australian Communications Theory Workshop (AusCTW), 2016
We consider the problem of distance, or range, estimation by measuring the phase of a sinusoidal signal transmitted between two locations. The distance can only be unambiguously measured if it is contained in an interval of length less than the wavelength of the signal.
Assad Akhlaq   +2 more
openaire   +1 more source

Beam range estimation by measuring bremsstrahlung

Physics in Medicine and Biology, 2012
We describe a new method for estimating the beam range in heavy-ion radiation therapy by measuring the ion beam bremsstrahlung. We experimentally confirm that the secondary electron bremsstrahlung process provides the dominant bremsstrahlung contribution.
Mitsutaka, Yamaguchi   +12 more
openaire   +2 more sources

Range-Preserving Estimators

1994
An estimator is said to be range preserving if its values are confined to the range of what it is to estimate. The property of being range preserving is an essential property of an estimator, a sine qua non. Other properties, such as unbiasedness, may be desirable in some situations, but an unbiased estimator that is not range preserving should be ...
N. I. Fisher, P. K. Sen
openaire   +1 more source

On range and attitude estimation

Proceedings of 1994 IEEE Position, Location and Navigation Symposium - PLANS'94, 2002
Two algorithms to support an airborne, gimballed, electro-optical sensor are described. They have been designed for "Litening", a new targeting and navigation pod, which has been developed by Rafael. A full inertial measurement unit (IMU), capable of measuring linear acceleration and angular velocity, in three orthogonal axes, is mounted in the inner ...
openaire   +1 more source

Recursive Motion Estimation of Range Image

2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007
In this paper, we present an innovative recursive motion estimation technique that can take advantage of the in-depth resolution (range) to perform an accurate estimation of objects that have undergone 3-D translational and rotational movements. This approach iteratively aims at minimizing the error between the object in the current frame and its ...
Hamid Gharavi, Shaoshuai Gao
openaire   +1 more source

Range selectivity estimation for continuous attributes

Proceedings. Eleventh International Conference on Scientific and Statistical Database Management, 2003
Many commercial database systems maintain histograms to efficiently estimate query selectivities as part of query optimization. Most work on histogram design is implicitly geared towards discrete or categorical attribute value domains. We consider approaches that are better suited for the continuous valued attributes commonly found in scientific and ...
Flip Korn   +2 more
openaire   +1 more source

Range-Doppler Estimation

1998
Perhaps the most important application of the AF of a signal is the radar/sonar problem of jointly estimating the range and radial velocity (Doppler shift) of a slowly fluctuating point target. The AF is important in this context since (i) the maximum-likelihood estimator for range and Doppler shift uses the cross-AF of the transmitted and received ...
openaire   +1 more source

Range estimation via multidimensional segmentation

Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429), 2004
A new graph-theoretic algorithm for stereo range estimation, utilizing a Mumford-Shah variational, multidimensional segmentation of a 3D or 4D spatio-(temporal)-parallax space to implicitly solve the stereo correspondence problem, is described. Initial results and comparison with an area correlation range estimation algorithm demonstrate that it is ...
openaire   +1 more source

Exploiting cyclostationarity for range and bearing estimation

IEEE International Conference on Acoustics Speech and Signal Processing, 1993
Novel bearing and range estimation algorithms are proposed using cyclostationarity of the underlying processes. By exploiting the higher-order temporal properties of communication signals, direction finding algorithms are proposed for narrowband non-Gaussian signals.
openaire   +2 more sources

Home - About - Disclaimer - Privacy