Zobrazeno 1 - 10
of 50
pro vyhledávání: '"R.R. Hayes"'
Autor:
R.R. Hayes, J.H. Schaffner
Publikováno v:
Journal of Lightwave Technology. 12:503-511
One method of increasing the efficiency of a high-frequency integrated optic modulator is to use a periodic electrode to repeatedly "correct" the phase mismatch that results from unequal RF and optical propagation velocities. The center frequency of
Publikováno v:
IEEE Photonics Technology Letters. 5:514-517
The design and fabrication of a 1.3- mu m waveguide-coupled strained-layer In/sub x/Ga/sub 1-x/As/GaAs MSM detector with an optimized active layer thickness is reported. For 100- mu m-long devices, a responsivity of 0.58 mA/mW is observed. Using the
Autor:
R.R. Hayes, D.D. Yap
Publikováno v:
Journal of Lightwave Technology. 11:523-528
Spiral optical waveguides can be used to provide moderately long delays for a variety of microwave applications. A brief analysis of the performance limitations of spiral delay lines is presented, together with loss measurement data for spirals havin
Autor:
R.R. Hayes, D.L. Persechini
Publikováno v:
IEEE Photonics Technology Letters. 5:70-72
At higher operating frequencies, the field dependence of the carrier velocity in p-i-n photodetectors generates harmonics and intermodulation products that can degrade the dynamic range of RF fiber-optic links. The authors present both a perturbation
Autor:
R.R. Hayes, Keinosuke Fukunaga
Publikováno v:
IEEE Transactions on Pattern Analysis and Machine Intelligence. 11:1087-1101
An expression for expected classifier performance previously derived by the authors (ibid., vol.11, no.8, p.873-855, Aug. 1989) is applied to a variety of error estimation methods and a unified and comprehensive approach to the analysis of classifier
Autor:
Keinosuke Fukunaga, R.R. Hayes
Publikováno v:
IEEE Transactions on Pattern Analysis and Machine Intelligence. 11:873-885
The effect of finite sample-size on parameter estimates and their subsequent use in a family of functions are discussed. General and parameter-specific expressions for the expected bias and variance of the functions are derived. These expressions are
Autor:
R.R. Hayes, K.H. Rieder
Publikováno v:
Solid State Communications. 13:559-562
Measurements of the second order Raman spectra for RbCl are reported for 80 and 300°K. The low temperature spectra allow a critical point analysis on the basis of the neutron data of Raunio and Rolandson. The analysis is facilitated by the existence
Autor:
C.H. Perry, R.R. Hayes
Publikováno v:
Solid State Communications. 14:173-175
Raman measurements of the temperature dependence of several low-lying magnetic excitations in CoO are reported. The large q = 0 value of the lowest excitation (143 cm -1 ) and its q -independence are attributed to the large single-ion anisotropy of C
Autor:
Keinosuke Fukunaga, R.R. Hayes
Publikováno v:
IEEE Transactions on Pattern Analysis and Machine Intelligence. 11:423-425
The Parzen density estimate is known to be an effective tool for estimating the Bayes error, given a set of training samples from the class distributions. An algorithm is developed to select a given number of representative samples whose Parzen densi
Autor:
H.T.W. Wang, R.R. Hayes
Publikováno v:
39th Annual Symposium on Frequency Control.