ssrs 2014 barcode Five in Software

Draw QR Code in Software Five

Five
QR Code ISO/IEC18004 Decoder In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Generating Denso QR Bar Code In None
Using Barcode generation for Software Control to generate, create QR Code image in Software applications.
A wire grid polarizer.
Denso QR Bar Code Reader In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
QR-Code Drawer In Visual C#.NET
Using Barcode printer for Visual Studio .NET Control to generate, create Quick Response Code image in .NET applications.
Solid metal or metal grid reflector
QR Generation In Visual Studio .NET
Using Barcode creator for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
Painting QR Code 2d Barcode In .NET Framework
Using Barcode encoder for VS .NET Control to generate, create QR image in .NET framework applications.
Metal grid reflector
Paint QR In Visual Basic .NET
Using Barcode encoder for .NET framework Control to generate, create QR Code JIS X 0510 image in .NET applications.
Generate Barcode In None
Using Barcode printer for Software Control to generate, create barcode image in Software applications.
Figure 5.7 A wire grid polarizer used in a dual-polarized antenna.
Create Bar Code In None
Using Barcode creator for Software Control to generate, create barcode image in Software applications.
Universal Product Code Version A Drawer In None
Using Barcode encoder for Software Control to generate, create GS1 - 12 image in Software applications.
Polarization
Code 128 Generation In None
Using Barcode creation for Software Control to generate, create Code 128B image in Software applications.
ECC200 Generation In None
Using Barcode maker for Software Control to generate, create DataMatrix image in Software applications.
5.3 Polarization of Satellite Signals As mentioned above, the directions horizontal and vertical are easily visualized with reference to the earth. Consider, however, the situation where a geostationary satellite is transmitting a linear polarized wave. In this situation, the usual definition of horizontal polarization is where the electric field vector is parallel to the equatorial plane, and vertical polarization is where the electric field vector is parallel to the earth s polar axis. It will be seen that at the subsatellite point on the equator, both polarizations will result in electric fields that are parallel to the local horizontal plane, and care must be taken therefore not to use horizontal as defined for terrestrial systems. For other points on the earth s surface within the footprint of the satellite beam, the polarization vector (the unit vector in the direction of the electric field) will be at some angle relative to a reference plane. Following the work of Hogg and Chu (1975), the reference plane will be taken to be that which contains the direction of propagation and the local gravity direction (a plumb line ). This is shown in Fig. 5.8. With the propagation direction denoted by k and the local gravity direction at the ground station by r, the direction of the normal to the reference plane is given by the vector cross-product: f k r (5.8)
Identcode Encoder In None
Using Barcode creation for Software Control to generate, create Identcode image in Software applications.
Scanning Bar Code In .NET Framework
Using Barcode Control SDK for ASP.NET Control to generate, create, read, scan barcode image in ASP.NET applications.
Local horizontal plane
UCC - 12 Decoder In C#
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
Encoding EAN-13 Supplement 5 In None
Using Barcode encoder for Font Control to generate, create EAN / UCC - 13 image in Font applications.
Figure 5.8 The reference plane for the direction of propagation and
Code 128 Code Set A Maker In Java
Using Barcode generator for Java Control to generate, create Code 128C image in Java applications.
UPC-A Supplement 5 Maker In VB.NET
Using Barcode maker for Visual Studio .NET Control to generate, create GTIN - 12 image in .NET framework applications.
the local gravity direction.
Code128 Scanner In VS .NET
Using Barcode scanner for .NET framework Control to read, scan read, scan image in .NET framework applications.
Barcode Creation In None
Using Barcode maker for Word Control to generate, create bar code image in Microsoft Word applications.
Five
With the unit polarization vector at the earth station denoted by p, the angle between it and f is obtained from the vector dot product as arccos p f Zf Z (5.9)
Since the angle between a normal and its plane is 90 , the angle between p and the reference plane is j 90o h and arcsin p f Zf Z (5.10)
This is the desired angle. Keep in mind that the polarization vector is always at right angles to the direction of propagation. The next step is to relate the polarization vector p to the defined polarization at the satellite. Let unit vector e represent the defined polarization at the satellite. For vertical polarization, e lies parallel to the earth s N-S axis. For horizontal polarization, e lies in the equatorial plane at right angles to the geostationary radius aGSO to the satellite. A cross-product vector can be formed, g k e (5.11)
where g is normal to the plane containing e and k, as shown in Fig. 5.9. The cross-product of g with k gives the direction of the polarization in this plane. Denoting this cross-product by h gives h g k (5.12)
The unit polarization vector at the earth station is therefore given by p h ZhZ (5.13)
k g aGSO h e
Figure 5.9 Vectors g
e and h
Polarization
All these vectors can be related to the known coordinates of the earth station and satellite shown in Fig. 5.10. With the longitude of the satellite as the reference, the satellite is positioned along the positive x axis at xs aGSO (5.14)
The coordinates for the earth-station position vector R are (ignoring the slight difference between geodetic and geocentric latitudes and
R Ry r = R B
aGSO = xS Geostationary satellite
Figure 5.10 Vectors k and R in relation to satellite and earth station positions.
Five
assuming the earth station to be at mean sea level) Rx Ry Rz R cosl cosB R cosl sinB R sinl (5.15a) (5.15b) (5.15c)
where B fE fSS as defined in Eq. (3.8). The local gravity direction is r R. The coordinates for the direction of propagation k are kx ky kz Rx Ry Rz aGSO (5.16a) (5.16b) (5.16c)
Calculation of the polarization angle is illustrated in the following example.
Example 5.1 A geostationary satellite is stationed at 105 W and transmits a vertically polarized wave. Determine the angle of polarization at an earth station at latitude 18 N longitude 73 W.
Solution Given data: 73 ; fSS 105 ; aGSO l 18 ; fE of mean radius R assumed). Eq. (3.8) gives:
Copyright © OnBarcode.com . All rights reserved.