# 1028285

Adjustment Computations

Spatial Data Analysis

Συγγραφέας: Ghilani Charles D. , Wolf Paul R.
Εκδότης: John Wiley and Sons Ltd
ISBN: 9780470464915
Αριθμός Σελίδων: 672
Διαστάσεις: 24x4x16
Έτος Έκδοσης: 2010

Σύνοψη του βιβλίου "Adjustment Computations"

An update to a classic in the field of surveying, this is one of the few books that deals with the important issue of error in spatial data. Originally written for surveyors, it has expanded over the years to encompass the needs of new spatial technologies as they've been introduced (GPS, GIS) and new analytical techniques as they find acceptance. This Fifth Edition offers new screenshots to guide students through the exercises, more problems, more worked solutions in the solutions manual, as well as PowerPoint slides from the author's lectures.

Συγγραφέας/εις: Ghilani Charles D., Wolf Paul R.
ISBN: 9780470464915
Ημερ/νία έκδοσης: 09/04/2010
Εκδότης: John Wiley and Sons Ltd
Εξώφυλλο: Hardback
Σελίδες: 672
Περιλαμβάνει: Online resource
Τόπος έκδοσης: Chichester
Χώρα έκδοσης: United Kingdom
Βάρος βιβλίου: 1066 gr
Διαστάσεις βιβλίου: 24x4x16 cm
Στοιχεία έκδοσης: 5th Revised edition
Λεπτομέρειες εικονογράφησης: Illustrations


PREFACE. ACKNOWLEDGMENTS. 1 Introduction. 1.1. Introduction. 1.2. Direct and Indirect Measurements. 1.3. Measurement Error Sources. 1.4. Definitions. 1.5. Precision versus Accuracy. 1.6. Redundant Observations in Surveying and Their Adjustment. 1.7. Advantages of Least Squares Adjustment. 1.8. Overview of the Book. Problems. 2 Observations and Their Analysis. 2.1. Introduction. 2.2. Sample versus Population. 2.3. Range and Median. 2.4. Graphical Representation of Data. 2.5. Numerical Methods of Describing Data. 2.6. Measures of Central Tendency. 2.7. Additional Definitions. 2.8. Alternative Formula for Determining Variance. 2.9. Numerical Examples. 2.10. Derivation of the Sample Variance (Bessel's Correction). 2.11. Software. Problems. Practical Exercises. 3 Random Error Theory. 3.1. Introduction. 3.2. Theory of Probability. 3.3. Properties of the Normal Distribution Curve. 3.4. Standard Normal Distribution Function. 3.5. Probability of the Standard Error. 3.6. Uses for Percent Errors. 3.7. Practical Examples. Problems. Programming Problems. 4 Confidence Intervals. 4.1. Introduction. 4.2. Distributions Used in Sampling Theory. 4.3. Confidence Interval for the Mean: t statistic. 4.4. Testing the Validity of the Confidence Interval. 4.5. Selecting a Sample Size. 4.6. Confidence Interval for a Population Variance. 4.7. Confidence Interval for the Ratio of Two Population Variances. 4.8. Software. Problems. 5 Statistical Testing. 5.1. Hypothesis Testing. 5.2. Systematic Development of a Test. 5.3. Test of Hypothesis for the Population Mean. 5.4. Test of Hypothesis for the Population Variance. 5.5. Test of Hypothesis for the Ratio of Two Population Variances. 5.6. Software. Problems. 6 Propagation of Random Errors in Indirectly Measured Quantities. 6.1. Basic Error Propagation Equation. 6.2. Frequently Encountered Specific Functions. 6.3. Numerical Examples. 6.4. Software. 6.5. Conclusions. Problems. Practical Exercises. 7 Error Propagation in Angle and Distance Observations. 7.1. Introduction. 7.2. Error Sources in Horizontal Angles. 7.3. Reading Errors. 7.4. Pointing Errors. 7.5. Estimated Pointing and Reading Errors with Total Stations. 7.6. Target-Centering Errors. 7.7. Instrument-Centering Errors. 7.8. Effects of Leveling Errors in Angle Observations. 7.9. Numerical Example of Combined Error Propagation in a Single Horizontal Angle. 7.10. Using Estimated Errors to Check Angular Misclosure in a Traverse. 7.11. Errors in Astronomical Observations for Azimuth. 7.12. Errors in Electronic Distance Observations. 7.13. Software. Problems. Programming Problems. 8 Error Propagation in Traverse Surveys. 8.1. Introduction. 8.2. Derivation of Estimated Error in Latitude and Departure. 8.3. Derivation of Estimated Standard Errors in Course Azimuths. 8.4. Computing and Analyzing Polygon Traverse Misclosure Errors. 8.5. Computing and Analyzing Link Traverse Misclosure Errors. 8.6. Software. 8.7. Conclusions. Problems. Programming Problems. 9 Error Propagation in Elevation Determination. 9.1. Introduction. 9.2. Systematic Errors in Differential Leveling. 9.3. Random Errors in Differential Leveling. 9.4. Error Propagation in Trigonometric Leveling. Problems. Programming Problems. 10 Weights of Observations. 10.1. Introduction. 10.2. Weighted Mean. 10.3. Relation between Weights and Standard Errors. 10.4. Statistics of Weighted Observations. 10.5. Weights in Angle Observations. 10.6. Weights in Differential Leveling. 10.7. Practical Examples. Problems. 11 Principles of Least Squares. 11.1. Introduction. 11.2. Fundamental Principle of Least Squares. 11.3. Fundamental Principle of Weighted Least Squares. 11.4. Stochastic Model. 11.5. Functional Model. 11.6. Observation Equations. 11.7. Systematic Formulation of the Normal Equations. 11.8. Tabular Formation of the Normal Equations. 11.9. Using Matrices to Form Normal Equations. 11.10. Least Squares Solution of Nonlinear Systems. 11.11. Least Squares Fit of Points to a Line or Curve. 11.12. Calibration of an EDM Instrument. 11.13. Least Squares Adjustment Using Conditional Equations. 11.14. The Previous Example Using Observation Equations. 11.15. Software. Problems. 12 Adjustment of Level Nets. 12.1. Introduction. 12.2. Observation Equation. 12.3. Unweighted Example. 12.4. Weighted Example. 12.5. Reference Standard Deviation. 12.6. Another Weighted Adjustment. 12.7. Software. Problems. Programming Problems. 13 Precisions of Indirectly Determined Quantities. 13.1. Introduction. 13.2. Development of the Covariance Matrix. 13.3. Numerical Examples. 13.4. Standard Deviations of Computed Quantities. Problems. Programming Problems. 14 Adjustment of Horizontal Surveys: Trilateration. 14.1. Introduction. 14.2. Distance Observation Equation. 14.3. Trilateration Adjustment Example. 14.4. Formulation of a Generalized Coefficient Matrix for a More Complex Network. 14.5. Computer Solution of a Trilaterated Quadrilateral. 14.6. Iteration Termination. 14.7. Software. Problems. Programming Problems. 15 Adjustment of Horizontal Surveys: Triangulation. 15.1. Introduction. 15.2. Azimuth Observation Equation. 15.3. Angle Observation Equation. 15.4. Adjustment of Intersections. 15.5. Adjustment of Resections. 15.6. Adjustment of Triangulated Quadrilaterals. Problems. Programming Problems. 16 Adjustment of Horizontal Surveys: Traverses and Horizontal Networks. 16.1. Introduction to Traverse Adjustments. 16.2. Observation Equations. 16.3. Redundant Equations. 16.4. Numerical Example. 16.5. Minimum Amount of Control. 16.6. Adjustment of Networks. 16.7. chi 2 Test: Goodness of Fit. Problems. Programming Problems. 17 Adjustment of GNSS Networks. 17.1. Introduction. 17.2. GNSS Observations. 17.3. GNSS Errors and the Need for Adjustment. 17.4. Reference Coordinate Systems for GNSS Observations. 17.5. Converting between the Terrestrial and Geodetic Coordinate Systems. 17.6. Application of Least Squares in Processing GNSS Data. 17.7. Network Preadjustment Data Analysis. 17.8. Least Squares Adjustment of GNSS Networks. Problems. Programming Problems. 18 Coordinate Transformations. 18.1. Introduction. 18.2. Two-Dimensional Conformal Coordinate. 18.3. Equation Development. 18.4. Application of Least Squares. 18.5. Two-Dimensional Affine Coordinate Transformation. 18.6. Two-Dimensional Projective Coordinate Transformation. 18.7. Three-Dimensional Conformal Coordinate Transformation. 18.8. Statistically Valid Parameters. Problems. Programming Problems. 19 Error Ellipse. 19.1. Introduction. 19.2. Computation of Ellipse Orientation and Semiaxes. 19.3. Example Problem of Standard Error Ellipse Calculations. 19.4. Another Example Problem. 19.5. Error Ellipse Confidence Level. 19.6. Error Ellipse Advantages. 19.7. Other Measures of Station Uncertainty. Problems. Programming Problems. 20 Constraint Equations. 20.1. Introduction. 20.2. Adjustment of Control Station Coordinates. 20.3. Holding Control Fixed in a Trilateration Adjustment. 20.4. Helmert's Method. 20.5. Redundancies in a Constrained Adjustment. 20.6. Enforcing Constraints through Weighting. Problems. Practical Exercises. 21 Blunder Detection in Horizontal Networks. 21.1. Introduction. 21.2. A Priori Methods for Detecting Blunders in Observations. 21.3. A Posteriori Blunder Detection. 21.4. Development of the Covariance Matrix for the Residuals. 21.5. Detection of Outliers in Observations: Data Snooping. 21.6. Detection of Outliers in Observations: The Tau Criterion. 21.7. Techniques Used In Adjusting Control. 21.8. Data Set with Blunders. 21.9. Further Considerations. 21.10. Survey Design. 21.11. Software. Problems. Practical Exercises. 22 General Least Squares Method and Its Application to Curve Fitting and Coordinate Transformations. 22.1. Introduction to General Least Squares. 22.2. General Least Squares Equations for Fitting a Straight Line. 22.3. General Least Squares Solution. 22.4. Two-Dimensional Coordinate Transformation by General Least Squares. 22.5. Three-Dimensional Conformal Coordinate Transformation by General Least Squares. Problems. Programming Problems. 23 Three-Dimensional Geodetic Network Adjustment. 23.1. Introduction. 23.2. Linearization of Equations. 23.3. Minimum Number of Constraints. 23.4. Example Adjustment. 23.5. Building an Adjustment. 23.6. Comments on Systematic Errors. 23.7. Software. Problems. Programming Problems. 24 Combining GPS and Terrestrial Observations. 24.1. Introduction. 24.2. Helmert's Transformation. 24.3. Rotations between Coordinate Systems. 24.4. Combining GPS Baseline Vectors with Traditional Observations. 24.5. Another Approach to Transforming Coordinates between Reference Frames. 24.6. Other Considerations. Problems. Programming Problems. 25 Analysis of Adjustments. 25.1. Introduction. 25.2. Basic Concepts, Residuals, and the Normal Distribution. 25.3. Goodness-of-Fit Test. 25.4. Comparison of Residual Plots. 25.5. Use of Statistical Blunder Detection. Problems. 26 Computer Optimization. 26.1. Introduction. 26.2. Storage Optimization. 26.3. Direct Formation of the Normal Equations. 26.4. Cholesky Decomposition. 26.5. Forward and Back Solutions. 26.6. Using the Cholesky Factor to Find the Inverse of the Normal Matrix. 26.7. Spareness and Optimization of the Normal Matrix. Problems. Programming Problems. Appendix A Introduction to Matrices. A.1. Introduction. A.2. Definition of a Matrix. A.3. Size or Dimensions of a Matrix. A.4. Types of Matrices. A.5. Matrix Equality. A.6. Addition or Subtraction of Matrices. A.7. Scalar Multiplication of a Matrix. A.8. Matrix Multiplication. A.9. Computer Algorithms for Matrix Operations. A.10. Use of the MATRIX Software. Problems. Programming Problems. Appendix B Solution of Equations by Matrix Methods. B-1. Introduction. B-2. Inverse Matrix. B-3. Inverse of a 2 x 2 Matrix. B-4. Inverses by Adjoints. B-5. Inverses by Elementary Row Transformations. B-6. Example Problem. Problems. Programming Problems. Appendix C Nonlinear Equations and Taylor's Theorem. C.1. Introduction. C.2. Taylor Series Linearization of Nonlinear Equations. C.3. Numerical Example. C.4. Using Matrices to Solve Nonlinear Equations. C.5. Simple Matrix Example. C.6. Practical Example. C.7. Concluding Remarks. Problems. Programming Problems. Appendix D Normal Error Distribution Curve and Other Statistical Tables. D.1. Development of the Normal Distribution Curve Equation. D.2. Other Statistical Tables. Appendix E Confidence Intervals for the Mean. Appendix F Map Projection Coordinate Systems. F.1. Introduction. F.2. Mathematics of the Lambert Conformal Conic Map Projection. F.3. Mathematics from the Transverse Mercator. F.4. Stereographic Map Projection. F.5. Reduction of Observations. Appendix G Companion Web Site. G.1. Introduction. G.2. File Formats and Memory Matters. G.3. Software. G.4. Using the Software as an Instructional Aid. Appendix H Solutions to Selected Problems. BIBLIOGRAPHY. INDEX .

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