Physical wavelet defined on an observation plane and the dreamlet

2011 ◽  
Author(s):  
Ru‐Shan Wu ◽  
Yu Geng ◽  
Bangyu Wu
Keyword(s):  
Observation Plane

Implementasi Automatic Dependent Surveillance Broadcast (ADS-B) di Indonesia

WARTA ARDHIA ◽  
2014 ◽  
Vol 40 (3) ◽  
pp. 147-162
Author(s):  
Yati Nurhayati ◽  
Susanti Susanti
Keyword(s):  
Global Positioning System ◽  
Wind Direction ◽  
Management System ◽  
New Technology ◽  
Positioning System ◽  
Observation Plane ◽  
Detection Technology ◽  
Global Positioning ◽  
Other Information ◽  
Plane Passing

Teknlologi ADSB is a new technology in the observation plane which is a combination of global positioning system (GPS), so that the aircraft can be traced to the position, velocity, wind direction, and altitude. This tool can be installed in the aircraft or ground stations and more superior than the radar.ADS-B is indeed a revolutionary look, start with only the antenna and the tool less than for a small refrigerator can detect aircraft and air traffic displays.Automatic Dependent Surveillance- Broadcast (ADS-B) is a detection technology where each plane passing owned transponder emits every two times per second information altitude, position, speed, direction, and other information to ground stations and other aircraft. This information is obtained from the information the Global Positioning System (GPS) or backup Flight Management System (FMS) in each plane. Teknlologi ADSB adalah teknologi baru dalam pengamatan pesawat terbang yang merupakan kombinasi global positioning system (GPS), sehingga pesawat bisa terlacak posisi, kecepatan, arah angin, dan ketinggian. Alat ini bisa dipasang di pesawat atau stasiun darat dan lebih unggul dari radar. ADS-B ini memang terlihat revolusioner, dengan hanya berbekal antenna dan alat kurang dari sebesar lemari es kecil dapat mendeteksi pesawat terbang dan menampilkan lalu lintas udara.Automatic Dependent Surveillance- Broadcast (ADS-B) adalah teknologi pendeteksi dimana setiap pesawat lewat transponder yang dimiliki memancarkan setiap dua kali dalam tiap detik informasi ketinggian, posisi, kecepatan, arah, dan informasi lainnya ke stasiun darat dan pesawat lainnya. Informasi ini didapat dari informasi Global Positioning System (GPS) atau backup Flight Management System (FMS) yang ada di pesawat masing-masing.

scholarly journals Pattern of Solidified Structure on the Inclined Observation Plane

2008 ◽  
Vol 48 (3) ◽  
pp. 264-269 ◽  
Author(s):  
Hisao Esaka ◽  
Masamichi Shirakawa ◽  
Kei Shinozuka ◽  
Manabu Tamura
Keyword(s):  
Observation Plane

Extensions of Electron Diffraction Based Techniques in Crystallographic Characterization

2013 ◽  
Vol 753 ◽  
pp. 11-16
Author(s):  
Liang Zuo ◽  
Zong Bin Li ◽  
Yu Dong Zhang ◽  
Claude Esling ◽  
Xiang Zhao
Keyword(s):  
Electron Diffraction ◽  
Interface Plane ◽  
Data Input ◽  
Specific Level ◽  
Characterization Methods ◽  
Burgers Vector ◽  
Observation Plane ◽  
Dislocation Type

Abstract. With the advance of electron diffraction techniques in individual orientation analysis, traditional crystallographic characterization methods could be simplified, thus offering chances to develop some new approaches. In recent years, our group has devoted to working on possible extensions of the SEM and TEM based techniques for crystallographic analyses on a microstructure- and orientation-specific level. Several methods are illustrated in this paper, including the determination of dislocation type and Burgers vector without recourse to the traditional g.b invisibility condition, the identification of twinning mode and complete twinning elements for any crystal symmetry that requires minimum initial data input, and the characterization of specific interface plane or slip plane using only one sample observation plane instead of two perpendicular sample planes. These new extensions of characterization methods have proven to facilitate the related microstructural examinations.

Influence of observation plane on twin variant identification in magnesium via trace and misorientation analysis

2014 ◽  
Vol 618 ◽  
pp. 558-562 ◽  
Author(s):  
Changfa Guo ◽  
Renlong Xin ◽  
Xuan Zheng ◽  
Yue Xiao ◽  
Changhong Ding ◽  
...  
Keyword(s):  
Observation Plane ◽  
Twin Variant ◽  
Variant Identification

Simultaneous estimation of total magnetization direction and 3-D spatial orientation

Geophysics ◽  
1995 ◽  
Vol 60 (5) ◽  
pp. 1365-1377 ◽  
Author(s):  
Walter E. Medeiros ◽  
João B.C. Silva
Keyword(s):  
Dipole Moment ◽  
Spatial Orientation ◽  
A Priori ◽  
Magnetic Data ◽  
Simultaneous Estimation ◽  
Magnetization Direction ◽  
Observation Plane ◽  
Total Magnetization ◽  
Spatially Correlated ◽  
Principal Axes

Magnetic interpretations are usually carried out either by assuming induced magnetization and estimating the model geometry, or by presuming a known source spatial orientation to estimate the total magnetization. We present a 3-D magnetic interpretation method that estimates simultaneously the total magnetization direction and the spatial orientation of the source. It is based on the approximation of the anomaly by the series derived from expanding the magnetic potential into multipoles and retaining source moments up to second order. The moments and linear combinations of moments appearing in the series are then inverted from the magnetic anomaly. The total magnetization is assumed constant in direction but not in magnitude. It is also presumed implicitly that the anomalous distribution of magnetization intensity has nonzero values in a finite‐volume region, is far from the observation points, and presents three othogonal planes of symmetry intersecting at the center of the dipole moment. The method is essentially linear and requires no a priori explicit assumption of a fixed geometry for the sources. The method is particularly suited to interpret compact, isolated or disjoint, but spatially correlated sources. If the source satisfies all assumptions presumed by the method, it is possible to obtain accurate, stable estimates of the total dipole moment vector, the position of the center of dipole moment, and the directions of all three principal axes of symmetry. If the source is not far from the observation plane and/or if the total magnetization direction is not constant, it is still possible to obtain accurate and stable estimates of the direction of the mean total magnetization and the projection, on the observation plane, of the center of dipole moment. The method is applied to magnetic data from the Gulf of Guinea Seamount. The estimated magnetic palaeopole is at 50°48′S and 74°54′E which is in good agreement with estimates published by other authors.

Nouvelle Méthode de Mesure de la Cohérence Spatiale en Lumière Pseudo-Thermique par Comptage des Photoélectrons

1971 ◽  
Vol 49 (14) ◽  
pp. 1940-1949 ◽  
Author(s):  
Claude Delisle ◽  
Jacques Bures
Keyword(s):  
Light Intensity ◽  
Probability Density ◽  
Spatial Coherence ◽  
Experimental Distribution ◽  
Observation Plane ◽  
Theoretical Probability ◽  
Exact Theory ◽  
Cohérence Spatiale

The light from a pseudothermal source is simultaneously detected in two points of the observation plane with a single photodetector. The degree of spatial coherence between the two points is determined from a comparison between one of the moments of the theoretical probability density P(i) of the light intensity at the photocathode and the corresponding moment of the experimental distribution of the photoelectrons. The moments of the probability density P(i) are derived from an exact theory which takes into account the degree of spatial coherence between the two points of the observation plane.

NUMERICAL DETERMINATION OF THE FACTOR OF ENCIRCLED ENERGY RELATIVE TO A DIFFRACTION PATTERN OF REVOLUTION

1958 ◽  
Vol 36 (12) ◽  
pp. 1696-1709 ◽  
Author(s):  
Guy Lansraux ◽  
Germain Boivin
Keyword(s):  
Diffraction Pattern ◽  
Optical System ◽  
Computing Methods ◽  
Numerical Determination ◽  
Normalization Factor ◽  
Good Test ◽  
Observation Plane ◽  
Complete Determination

An optical system which is symmetrical about some axis forms a diffraction pattern around its focus F in an observation plane II.The factor of encircled energy E(W) is, apart from a normalization factor, the energy spread over the II plane inside a circle of radius W, centered on F.Although it is a good test for the quality of an optical system, the factor of encircled energy has not been used a great deal because of the lengthy calculations that its numerical determination requires. Two rapid computing methods are exposed here, with tables allowing a complete determination of E(W).

Influence of the Brownian movement on the motion of nanoand micro-particles in the inhomogeneous optical field

2012 ◽  
Vol 20 (3) ◽  
Author(s):  
C. Zenkova ◽  
M. Gorsky ◽  
I. Soltys ◽  
P. Angelsky
Keyword(s):  
Viscous Medium ◽  
Optical Field ◽  
Optical Force ◽  
Spatial Modulation ◽  
Brownian Movement ◽  
Observation Plane ◽  
Micro Particles ◽  
Range Type ◽  
Degree Of Coherence ◽  
Volume Energy

AbstractThe motion of light scattering particles of the Mie and Rayleigh micro- and nano-range type in the inhomogeneously-polarized optical field, with allowance made for the Brownian movement, is analysed in the paper. The spatial modulation of polarization in the observation plane determines the spatial modulation of the volume energy density. That is why the velocity and the resulting optical force, which cause the motion of the testing particles, change according to the degree of coherence of the interacting fields. The influence of the forces which arise in the viscous medium and cause the Brownian movement upon the mechanisms of manipulating and trapping testing particles by the optical field is studied.

On: “Preferential continuation for potential‐field anomaly enhancement” (R. Pawlowski, GEOPHYSICS, 60, 390–398).

Geophysics ◽  
2001 ◽  
Vol 66 (2) ◽  
pp. 695-698 ◽  
Author(s):  
Hualin Zeng ◽  
Deshu Xu
Keyword(s):  
Gravity Anomaly ◽  
Potential Field ◽  
Common Method ◽  
Gravity Inversion ◽  
Observation Plane ◽  
Long Wavelength ◽  
Upward Continuation ◽  
Excellent Method ◽  
Deep Sources ◽  
Preferential Continuation

Pawlowski (1995) presents an excellent method for preferential continuation for potential‐field anomaly enhancement, and it is an appreciated attempt to solve a very common problem in gravity separation. Upward continuation of a gravity anomaly is a very common method for regional‐residual separation in China. One of the main problems in the conventional upward continuation is that it overattenuates regional‐field or useful long‐wavelength information due to deep sources. Sometimes attenuated‐upward continuation of an observed anomaly to a height has to be regarded as the original regional field at the observation plane in order to use gravity inversion to map deep interfaces such as the Moho. Application of the preferential continuation to gravity anomaly in some areas in China has shown very good effectiveness in solving the above problem (Xu and Zeng, 2000).

Sign in / Sign up

Export Citation Format

Share Document