Experimental measurements done with OwlPS.
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  1. /!\ The files _2 and _4 contain some signal strengths of 127 dBm.
  2. They were removed in the corresponding +coord files.
  3. This test is split is six sections, corresponding to six aggregation
  4. files. Since the operator of the aggregation server was not in the
  5. vehicle, it was quite hard to know exactly when the vehicle's driver
  6. started driving. Furthermore, it is not easy to keep a constant speed
  7. when driving in the tunnels (especially when going through doors,
  8. angles, narrower drifts, etc.). We are forced to assume a constant speed
  9. between two known measurement points to interpolate the coordinates of
  10. the mobile, so keep in mind a deviation is inevitable.
  11. Note: in the list below, when talking about the first request from the
  12. mobile that is taken into account, it is the first request that we want
  13. to compute the result for, because before there are not enough
  14. autocalibration requests from the CPs.
  15. Note 2: the global +coord file is a concatenation of all the other
  16. +coord files.
  17. 1. From the starting point (94.50;-29.50;1.70) to CP6 (121.80;-21.10;1.70)
  18. - T0: starting measurements
  19. - Hour: 10:07:11
  20. - Timestamp: 1368637480.546590716
  21. - T1: first request taken into account
  22. - Timestamp: 1368637500.499755520
  23. - T2: starting to drive
  24. - Hour: 10:07:50
  25. - Elapsed since T0: 39 s
  26. - Timestamp: 1368637519.475845290
  27. - Theoretical timestamp: 1368637519.546590716
  28. - T3: stopping at CP6
  29. - Hour: 10:08:30
  30. - Elapsed: 40 s
  31. - Timestamp: 1368637559.414410916
  32. - Theoretical timestamp: 1368637559.546590716
  33. - T4: stopping measurements
  34. - Timestamp: 1368637575.390247938
  35. 2. From CP6 (121.80;-21.10;1.70) to CP3 (177.90;18.15;1.70)
  36. - T0: starting measurements
  37. - Hour: 10:09:10
  38. - Timestamp: 1368637606.339525636
  39. - T1: first request taken into account
  40. - Timestamp: 1368637623.300332082
  41. - T2: starting to drive
  42. - Hour: 10:09:38
  43. - Elapsed since T0: 28 s
  44. - Timestamp: 1368637634.282427322
  45. - Theoretical timestamp: 1368637634.339525636
  46. - T3: stopping at CP3
  47. - Hour: 10:10:44
  48. - Elapsed: 66 s
  49. - Timestamp: 1368637700.140560729
  50. - Theoretical timestamp: 1368637700.339525636
  51. 3. From CP3 (177.90;18.15;1.70) to CP2 (160.85;78.30;1.70)
  52. - T0: starting measurements
  53. - Hour: 10:12:14
  54. - Timestamp: 1368637790.930403969
  55. - T1: first request taken into account
  56. - Timestamp: 1368637808.890954838
  57. - T2: starting to drive
  58. - Hour: 10:12:37
  59. - Elapsed since T0: 23 s
  60. - Timestamp: 1368637813.878851756
  61. - Theoretical timestamp: 1368637813.930403969
  62. - T3: stopping at CP2
  63. - Hour: 10:13:34
  64. - Elapsed: 57 s
  65. - Timestamp: 1368637870.744566676
  66. - Theoretical timestamp: 1368637870.930403969
  67. 4. From CP2 (160.85;78.30;1.70) to CP1 (128.25;142.40;1.70)
  68. - T0: starting measurements:
  69. - Hour: 10:14:14
  70. - Timestamp: 1368637910.667051420
  71. - T1: first request taken into account
  72. - Timestamp: 1368637926.627302430
  73. - T2: starting to drive
  74. - Hour: 10:14:43
  75. - Elapsed since T0: 29 s
  76. - Timestamp: 1368637939.585740382
  77. - Theoretical timestamp: 1368637939.667051420
  78. - T3: stopping at CP1
  79. - Hour: 10:15:47
  80. - Elapsed: 64 s
  81. - Timestamp: 1368638003.467649730
  82. - Theoretical timestamp: 1368638003.667051420
  83. 5. From CP1 (128.25;142.40;1.70) to CP5 (72.10;122;1.70)
  84. - T0: starting measurements
  85. - Hour: 10:16:16
  86. - Timestamp: 1368638032.410805563
  87. - T1: first request taken into account
  88. - Timestamp: 1368638049.363952879
  89. - T2: starting to drive
  90. - Hour: 10:16:42
  91. - Elapsed since T0: 26 s
  92. - Timestamp: 1368638058.342042561
  93. - Theoretical timestamp: 1368638058.410805563
  94. - T3: stopping at CP5
  95. - Hour: 10:17:54
  96. - Elapsed: 72 s
  97. - Timestamp: 1368638130.176303062
  98. - Theoretical timestamp: 1368638130.410805563
  99. 6. From CP5 (72.10;122;1.70) to the west intersection (2;85.50;1.70)
  100. - T0: starting measurements
  101. - Hour: 10:21:23
  102. - Timestamp: 1368638339.777607658
  103. - T1: first request taken into account
  104. - Timestamp: 1368638357.734208944
  105. - T2: starting to drive
  106. - Hour: 10:21:55
  107. - Elapsed since T0: 32 s
  108. - Timestamp: 1368638371.704775426
  109. - Theoretical timestamp: 1368638371.777607658
  110. - T3: stopping at the west intersection
  111. - Hour: 10:23:00
  112. - Elapsed: 65 s
  113. - Timestamp: 1368638435.579931086
  114. - Theoretical timestamp: 1368638436.777607658