ssrs barcode image Satellite Mobile and Specialized Services in Software

Creation QR in Software Satellite Mobile and Specialized Services

Satellite Mobile and Specialized Services
QR Code Scanner In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
QR Creator In None
Using Barcode creation for Software Control to generate, create Quick Response Code image in Software applications.
The Radarsat satellites are planned to fly in a low-earth near-circular orbit. The orbital details are given in Table 17.1. It will be seen that the orbital parameters are similar to those for the National Oceanographic and Atmospheric Administration (NOAA) satellites described in Chap. 1. In particular, the Radarsat orbit is sun synchronous. There are fundamental differences, however. Radarsat carries only C-band radar as the sensing mechanism, whereas the NOAA satellites carry a wide variety of instruments, as described in Secs. 1.5 and 7.11. Even though it is known that C-band radar is not the optimal sensing mechanism for all the applications listed, the rationale for selecting it is that it does penetrate cloud cover, smoke, and haze, and it does operate in darkness. Much of the sensing is required at high latitudes, where solar illumination of the earth can be poor and where there can be persistent cloud cover. It also will be seen that the orbit is described as dawn to dusk. What this means is that the satellite is in view of the sun for the ascending and descending passages. With the radar sensor it is not necessary to have the earth illuminated under the satellite; in other words, the sun s rays reach the orbital plane in a broadside fashion. The main operational advantage, suggested in Raney et al. (1991), is that the radar becomes fully dependent on solar power rather than battery power for both the ascending and descending passes. Since there is no operational need to distinguish between the ascending and descending passes, nearly twice as many observations can be made than otherwise would be possible. Also, as Raney et al. point out, the downlink periods for data transmission from Radarsat will take place at times well removed from those used by other remote-sensing satellites. Further advantages stated by the Canadian Space Agency are that the solar arrays do not have to rotate, the arrangement leads to a more stable thermal design for the spacecraft, the spacecraft design is simpler, and it provides for better power-raising capabilities. With this particular dawn-to-dusk orbit, the satellite will be eclipsed by the earth in the southern hemisphere from May 15 to July 30. The eclipse period changes gradually from zero to a maximum of about 15 min and back again to zero, as shown in Fig. 17.1. The battery backup consists of three 50 Ah nickel-cadmium batteries.
Reading QR Code JIS X 0510 In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
QR-Code Encoder In C#.NET
Using Barcode printer for Visual Studio .NET Control to generate, create QR Code ISO/IEC18004 image in .NET framework applications.
TABLE 17.1
QR Code JIS X 0510 Maker In VS .NET
Using Barcode generation for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
Draw Denso QR Bar Code In VS .NET
Using Barcode creation for .NET framework Control to generate, create QR image in Visual Studio .NET applications.
Radarsat Orbital Parameters Circular, sun synchronous (dawn dusk) 798 km 98.6 100.7 min 24 days
QR Code Creation In VB.NET
Using Barcode generation for .NET framework Control to generate, create QR Code image in Visual Studio .NET applications.
Printing Code128 In None
Using Barcode creator for Software Control to generate, create Code 128B image in Software applications.
Geometry Altitude (local) Inclination Period Repeat cycle
ANSI/AIM Code 39 Drawer In None
Using Barcode creator for Software Control to generate, create Code-39 image in Software applications.
Printing Bar Code In None
Using Barcode printer for Software Control to generate, create barcode image in Software applications.
Seventeen
Drawing Barcode In None
Using Barcode maker for Software Control to generate, create barcode image in Software applications.
Making UPC - 13 In None
Using Barcode encoder for Software Control to generate, create EAN 13 image in Software applications.
Duration of eclipse versus time of year, dawn dusk orbit. (Courtesy of Canadian Space Agency.)
Create 4-State Customer Barcode In None
Using Barcode maker for Software Control to generate, create USPS OneCode Solution Barcode image in Software applications.
Data Matrix Drawer In Java
Using Barcode generation for BIRT Control to generate, create DataMatrix image in Eclipse BIRT applications.
Radarsat, shown in Fig. 17.2, is a comparatively large spacecraft, the total mass in orbit being about 3100 kg. The radar works at a carrier frequency of 5.3 GHz, which can be modulated with three different pulse widths, depending on resolution requirements. The SAR operating modes are illustrated in Fig. 17.3. The swath illuminated by the radar lies 20 to the east and parallel to the subsatellite path. As shown, different beam configurations can be achieved, giving different resolutions. The mode characteristics are summarized in Table 17.2. The satellite completes 14 and 7/24 revolutions per day. The separation between equatorial crossings is 116.8 km. According to Raney et al. (1991), the scanning SAR is the first implementation of a special radar technique.
Create EAN-13 Supplement 5 In None
Using Barcode drawer for Online Control to generate, create EAN13 image in Online applications.
Code 39 Full ASCII Drawer In Objective-C
Using Barcode printer for iPad Control to generate, create Code 39 Full ASCII image in iPad applications.
Spacecraft configuration. (Courtesy of Canadian Space Agency.)
Printing Barcode In None
Using Barcode maker for Microsoft Word Control to generate, create barcode image in Microsoft Word applications.
Code39 Generation In None
Using Barcode creator for Microsoft Word Control to generate, create USS Code 39 image in Microsoft Word applications.
Satellite Mobile and Specialized Services
UCC - 12 Scanner In VB.NET
Using Barcode reader for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Generating 2D Barcode In Java
Using Barcode creation for Java Control to generate, create Matrix Barcode image in Java applications.
SAR operating modes. (Courtesy of Canadian Space Agency.)
Radarsat-2 is scheduled for launch in 2006. This will have the same orbit and repeat cycle as Radarsat-1, and will provide a follow-on program for all the Radarsat-1 imaging modes but with additional capabilities. The radar resolution with Radarsat-2 is 2.5 to 4.5 m compared to over 9 m with Radarsat-1. Whereas Radarsat-1 uses horizontal (H) polarization only, Radarsat-2 will be able to transmit and receive horizontal and vertical (V) in four modes: HH; HV; VH; and VV. Interpretation of radar data is greatly improved through the use of multipolarization. More detailed information can be obtained from http://www.radarsat2.info/
17.5 Global Positioning Satellite System (GPS) In the GPS system, a constellation of 24 satellites circles the earth in near-circular inclined orbits. By receiving signals from at least four of these satellites, the receiver position (latitude, longitude, and altitude) can be determined accurately. In effect, the satellites substitute for the geodetic position markers used in terrestrial surveying. In terrestrial
Copyright © OnBarcode.com . All rights reserved.