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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>page_xi</title> <link rel="stylesheet" href="reset.css" type="text/css" media="all"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> </head> <body> <table summary="top nav" border="0" width="100%"> <tr> <td align="left" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_x.html">< previous page</a></td> <td id="ebook_previous" align="center" width="40%" style="background: #EEF3E2"><strong style="color: #2F4F4F; font-size: 120%;">page_xi</strong></td> <td align="right" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_xii.html">next page ></a></td> </tr> <tr> <td id="ebook_page" align="left" colspan="3" style="background: #ffffff; padding: 20px;"> <table border="0" width="100%" cellpadding="0"><tr><td align="center"> <table border="0" cellpadding="2" cellspacing="0" width="100%"><tr><td align="left"></td> <td align="right"></td> </tr></table></td></tr><tr><td align="left"><p></p><table border="0" cellspacing="0" cellpadding="0" width="100%"><tr><td align="right"><font face="Times New Roman, Times, Serif" size="2" color="#FF0000">Page xi</font></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">quantitative statements about navigation-system performance during the design process. This chapter also introduces a few necessary concepts from the theory of stochastic processes. In Chap. 4 optimal state estimators (i.e., Kalman filtering) are introduced and derived. Optimal and suboptimal state estimations are also essential to the implementation and performance analysis of navigation systems. Examples are used extensively throughout Chaps. 3 and 4. In Chap. 5 self-contained descriptions of the basic GPS solution, differential GPS, Doppler processing, and various carrier-phase processing techniques are provided. This presentation of the various GPS techniques by use of unified notation greatly facilitates the understanding of the techniques and their relative advantages. For clarity of the presentation and comparison in Chap. 5, all techniques presented in that chapter consider pointwise processing only (i.e., no Kalman filtering). In Chap. 6 the equations necessary to implement and analyze INSs are derived. Error equations are derived and analyzed. These equations are necessary for performance analysis and error state estimation. Analysis of the error equations provides insight into the nature and rate of the INS divergence.</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">In Chap. 7 several detailed examples and case studies are provided that analyze GPS receiver position and velocity processing, GPS-aided-INS approaches, carrier-phase smoothing, attitude determination, and differential GPS base station design. The methodology of each detailed example follows the methodology that is suggested throughout the body of the text. In addition to each example's providing additional insight into GPS-aided-INS design, the detailed examples motivate and provide understanding of the systematic design methodology that is presented in the earlier chapters.</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">Five appendices are included. In App. A the notation, symbols, and constants used throughout the text are defined. In App. B a review of vector and matrix concepts is given. In App. C basic stochastic-process properties are reviewed. In this appendix various measures of system performance (CEP, SEP, R95, 2drms, etc.) are also discussed. In App. D numeric integration techniques are presented. In App. E the GPS ephemeris, clock, and atmospheric correction calculation algorithms are presented; examples are included.</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">The reader primarily interested in GPS concepts should focus on Chaps. 1, 2, 4, 5, 7 and App. E. Readers primarily interested in INS concepts should focus on Chaps. 1, 2, 3, and 6. For the reader interested primarily in INS, a good understanding of the material of Chap. 4 and the examples of Chap. 7 is essential to the analysis of system performance.</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">In summary, to serve as a single reference to the navigation-system de-signer, analyst, or project manager, the text presents in a unified framework the underlying theory of the global positioning system, inertial navigation, and optimal estimation. On each topic, the text provides in-depth discussion of implementation issues and approaches. Practical examples and case studies are included that are designed to illustrate successful techniques and nonintuitive approaches. In addition, this text includes numerous references to</font><font face="Times New Roman, Times, Serif" size="3" color="#FFFF00"></font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table></td></tr></table><p><font size="0"></font></p>聽 </td> </tr> <tr> <td align="left" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_x.html">< previous page</a></td> <td id="ebook_next" align="center" width="40%" style="background: #EEF3E2"><strong style="color: #2F4F4F; font-size: 120%;">page_xi</strong></td> <td align="right" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_xii.html">next page ></a></td> </tr> </table> </body> </html>⌨️ 快捷键说明
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