Zobrazeno 1 - 9
of 9
pro vyhledávání: '"W. R. M. Pomeroy"'
Publikováno v:
Journal of Modern Optics. 38:623-648
Signal fluctuations in a coherent, continuous-wave, lidar operating at 10·6 μm were investigated by forming temporal autocorrelation functions of intensity. The scattered radiation was taken from a model target consisting of a moving belt, and was
Autor:
David A. Huckridge, Kennedy Robert McEwen, W. R. M. Pomeroy, M. W. Thomas, Stephen C. Evans, P. C. Rigling
Publikováno v:
SPIE Proceedings.
There is a widespread requirement for wide area surveillance with target detection and recognition. To achieve the above aims with a single sensor is difficult and inevitably performance compromises have to be made. A system, designated Firefly, has
Autor:
D. A. Huckridge, W. R. M. Pomeroy
Publikováno v:
SPIE Proceedings.
The design of a laser rangefinder based on a frequency doubled Co laser is described. An AgGaS2 crystal is used to double the output of a Co2 laser from the 9.4 micron band to 4.7 microns. A monostatic approach is adopted in the design of the rangefi
Publikováno v:
Journal of Physics E: Scientific Instruments. 13:982-985
The performance of a germanium acousto-optic modulator, to provide a frequency shifted local oscillator in a CO2 laser velocimeter, has been investigated. Good heterodyning efficiency was found in contrast to previous reports. Practical operation of
Publikováno v:
The Journal of Chemical Physics. 62:3188-3192
The Rayleigh ratios of several liquids have been measured using a He–Ne laser and established techniques of high‐speed, monitored photon counting with dead‐time corrections and low dark rate. A simple well‐defined geometry at 90° scattering
Autor:
J. O'Shaughnessy, W. R. M. Pomeroy
Publikováno v:
Optical and Quantum Electronics. 10:270-272
Publikováno v:
Topical Meeting on Optical Remote Sensing of the Atmosphere.
Signal characteristics in a coherent heterodyne laser radar system have been investigated with techniques that include autocorrelation of the rectified and smoothed detector output. Various experiments have been conducted with the scattering from a m
Publikováno v:
SPIE Proceedings.
Work at RSRE on the optical and signal processing techniques of CO2 laser velocimetry is described together with recent applications at the Royal Aircraft Establishment Bedford and the Drax power station. The present capabilities of the method for re
Autor:
W. R. M. Pomeroy
Publikováno v:
Opto-electronics. 3:148-149