2 edition of Wind and C[SUP2]subscript n] profiling with crossed laser beams and spatial filter detectors found in the catalog.
Wind and C[SUP2]subscript n] profiling with crossed laser beams and spatial filter detectors
G. R. Ochs
by Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Wave Propagation Laboratory in Boulder, Colo
Written in English
|Statement||G. R. Ochs, S. F. Clifford, Ting-i Wang ; Wave Propagation Laboratory.|
|Series||NOAA technical report ; ERL 367-WPL 45, NOAA technical report -- ERL 367-WPL 45.|
|Contributions||Clifford, S. F. 1943-, Wang, Dingyi., Wave Propagation Laboratory., Environmental Research Laboratories (U.S.), Atmospheric Sciences Laboratory (U.S.), Air Force Weapons Laboratory.|
|The Physical Object|
|Pagination||iii, 19 p. :|
|Number of Pages||19|
–Project a single stripe of laser light –Scan it across the surface of the object –This is a very precise version of structured light scanning –Good for high resolution 3D, but needs many images and takes time Courtesy S. Narasimhan, CMU. MDPI is a pioneer in scholarly open access publishing. and has supported academic communities since You can use * to search for partial matches. Logical Operator Operator. All fields Title Abstract Keywords Authors Affiliations Doi Full Text References. add_circle_outline. remove_circle_outline. The Legacy of Einstein’s Eclipse.
A remote sensing, atmospheric lidar wind profiler is described that has 1 m/s accuracy and 50 m resolution and is both eye-safe and cost effective. Wind profiling by Doppler lidar has been shown to be feasible, but commercially available systems that are reliable, affordable, and suitable for automatic operation have not yet been developed. Radar Target Identification Using Spatial Matched Filters L.M. Novak, G.J. Owirka, and C.M. Netishen MIT Lincoln Laboratory Abstract The application of spatial matched filter classifiers to the synthetic aperture radar (SAR) automatic target recognition (ATR) problem is Cited by:
Laser beam profiling and wavefront analysis serve as complimentary techniques for gathering information on the laser beam being used. Beam characteristics, such as shape, stability, uniformity, and wavefront direction, can help detect where a potential misalignment might occur. A person takes in a breath of 10!C air and holds it until it warms to !C. The air has an initial volume of L and a mass of kg. Determine the work done by the air on the lungs if the p.
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Get this from a library. Wind and C² (subscript n) profiling with crossed laser beams and spatial filter detectors. [G R Ochs; S F Clifford; Ting-i Wang; Environmental Research Laboratories (U.S.),].
Air Force Weapons Laboratory, Kirtland Air Force Base, Wind and C[SUP2]subscript n] profiling with crossed laser beams and spatial filter detectors by G. R Ochs (Book) 2 editions published. C ERL WPL 45 Wind and C[SUP2]subscript n] profiling with crossed laser beams and spatial filter detectors / G.
C ERL WPL 46 Refractive index variance and its height distribution in different air masses / Earl E. Gossard. C ERL GLERL 11 Great Lakes ice cover, winter / George A. Leshkevich. C ERL The first airborne wind measurements of a pulsed, 2-μm solid-state, high-energy, wind-profiling lidar system for airborne measurements are laser pulse energy is the highest to date in an eye-safe airborne wind lidar system.
This energy, the Hz laser pulse rate, the cm receiver diameter, and dual-balanced coherent detection together have the potential to provide much Cited by: • 3 beams along track and 7 beams across track at GHz • 5 beams along track and 6 beams across track at GHz.
The number of beams in the along track direction is selected such that they cover the same strip width on the Earth. The antenna rotates. Radiation generated by high‐energy particle beams such as optical transition radiation (OTR) and optical synchrotron radiation (OSR) is widely used to characterize the beam properties.
It has enabled dual‐sweep streak cameras to visualize charged‐particle beam dynamics. In this introductory paper, we will discuss properties of dual‐sweep streak cameras and basic optics systems for Cited by: 1.
Ultra-intense laser-produced sub-ps X-ray pulses can detect backscattered signals from objects hidden in aluminium containers. Coincident measurements using primary X-rays enable differentiation among acrylic, copper, and lead blocks inside the container. Backscattering reveals the shapes of the objects, while their material composition can be identified from the modification methods of the Cited by: 2.
The evolution of the diffracted beam obtained after the edge diffraction of an LG beam (1) with m=2 and m=3 is illustrated by Fig. 2, Fig. 3, Fig.
4, Fig. 5 calculated via Eq.; all the images represent the intensity or phase distribution over the beam cross section, visible against the beam propagation; the TEC in the incident beam is directed counter-clockwise. Each column of Fig.
2, Fig. 3 Cited by: Unlike the conventional in-situ wind measuring method s, CDL ca n only detect the line- of -sight (LOS) velocity which is the projection of the horizontal and vertical velocity along t he laser beam.
Physics 41 Chapter 38 HW Key. Helium–neon laser light ( nm) is sent through a mm-wide single slit. What is the width of the central maximum on a screen m from the slit.
7 3 4 10 sin 10 a 10File Size: KB. Question: Light Of Wavelength Nm Is Incident On A Slit Mm Wide And The Diffraction Pattern Is Produced On A Screen That Is M From The Slit.
What Is The Width Of The Central Maximum. Cm Cm Cm Cm. In this study, we proposed spatial filter velocimetry (SFV) based on a frequency analysis of time-series spatially filtered particle images.
Since this method can measure velocity from one particle in a measurement region, it enables us to measure the velocity with high accuracy and high spatial Cited by: This makes direct computation of the cross-correlation function, R sig,ref (n), via R sig,ref (n) = (1/N)Σ N k=1 f sig (k) f ref (k + n), the preferred computational cost choice over the more standard FFT → complex conjugate multiplication → IFFT-based approach with its need for N = 2 p points and the necessity to check for fold over Cited by: Shallow Angle Wave Profiling Lidar Conference Paper in Journal of Atmospheric and Oceanic Technology 24(6) - April with 38 Reads How we measure 'reads'.
In this paper, a novel coherent detection spatial tracking system is designed to overcome the above mentioned problems. The optics design of the new spatial tracking is based on a highly sensitive angular discriminator, which can be implemented using a Fabry-Perot Etalon.
The post-detection electronic processor is mainly a phase : Jackie S. Fung. The use of laser designators has the disadvantage of _____. PLACING THE DESIGNATING FORCE AT RISK OF DETECTION A laser technique that allows PGMs to identify a particular laser designation from several in its field of view based upon a predetermined pulsing code, is ______________.
Rayleigh backscatter noise in integrated optical resonance gyroscope (IORG) is researched both in theoretically and experimentally. The characteristics of Rayleigh backscatter noise in the resonator of SiO 2 on Si substrate are formulized, and the static state and dynamic state models of IORG are constructed.
The relationship between the optical signal and Rayleigh backscatter noise is Cited by: 1. A significant enhancement in the number of cold atoms in an atomic-beam-loaded magneto-optical trap (MOT) for metastable krypton atoms is observed when hollow laser beams are used in a Zeeman slower instead of a Gaussian laser beam.
In the Zeeman slower setup, a combination of two hollow laser beams, i.e., a variable-diameter hollow beam generated using a pair of axicon Cited by: 1.
A laser absorption spectrometer is described which uses a tunable diode laser and a 1-m multipass White cell to detect NO2 in air with a sensitivity of better than ppt. The modulation techniques employed to achieve this sensitivity are described in detail, and the noise mechanisms, which currently limit the detectable absorption coefficients to ≳10−7 m−1, are examined.
Starting from the coding techniques used to obtain binary Fresnel encoded lens and Fresnel holograms, the synthesis of a diffractive optical element able to realize the split of a laser beam into N beams, is presented. Experimental results are provided for N equals 2, 3, 4, 5. JSC Silicon Sensors and Ladders The AMS experiment silicon detector assemblies (Figure ) contain silicon ladders made up of a series of inches ( mm) x inches ( mm) x inches ( mm) double-sided silicon .The High Energy SBC Fiber Laser Demonstrator Update (D) C.
Denton Marrs, Naval Air Warfare Center High Energy Laser Mobile Demonstrator (HEL MD) Update (C) Michelle Kincer, Space and Missile Defense Command TUESDAY AFTERNOON Beam Propagation & Wavefront Control (Limited/Open). Steve Fiorino,Dr Air Force Institute of Technology.An analysis of the errors due to multiple scattering which are expected to be encountered in application of the current Coastal Zone Color Scanner (CZCS) atmospheric correction algorithm is presented in detail.
This was prompted by the observations of others that significant errors would be encountered if the present algorithm were applied to a hypothetical instrument possessing higher.