v2007.09.13 - Convex Optimization

v2007.09.13 - Convex Optimization v2007.09.13 - Convex Optimization

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314 CHAPTER 5. EUCLIDEAN DISTANCE MATRIXx 1x 4x 6x 3x 5x 2Figure 79: Incomplete EDM corresponding to this dimensionless EDMgraph provides unique isometric reconstruction in R 2 . (drawn freehand, nosymmetry intended)ˇx 4x 1x 2ˇx 3ˇx 5Figure 80: Two sensors • and three anchors ◦ in R 2 . (Ye) Connectingline-segments denote known absolute distances. Incomplete EDMcorresponding to this dimensionless EDM graph provides unique isometricreconstruction in R 2 .

5.4. EDM DEFINITION 315105ˇx 4ˇx 50ˇx 3−5x 2x 1−10−15−6 −4 −2 0 2 4 6 8Figure 81: Given in red are two discrete linear trajectories of sensors x 1and x 2 in R 2 localized by algorithm (756) as indicated by blue bullets • .Anchors ˇx 3 , ˇx 4 , ˇx 5 corresponding to Figure 80 are indicated by ⊗ . Whentargets and bullets • coincide under these noiseless conditions, localizationis successful. On this run, two visible localization errors are due to rank-3Gram optimal solutions. These errors can be corrected by choosing a differentnormal in objective of minimization.

5.4. EDM DEFINITION 315105ˇx 4ˇx 50ˇx 3−5x 2x 1−10−15−6 −4 −2 0 2 4 6 8Figure 81: Given in red are two discrete linear trajectories of sensors x 1and x 2 in R 2 localized by algorithm (756) as indicated by blue bullets • .Anchors ˇx 3 , ˇx 4 , ˇx 5 corresponding to Figure 80 are indicated by ⊗ . Whentargets and bullets • coincide under these noiseless conditions, localizationis successful. On this run, two visible localization errors are due to rank-3Gram optimal solutions. These errors can be corrected by choosing a differentnormal in objective of minimization.

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