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ashtech DG16 - Page 13

ashtech DG16
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xiii
Figure 1.1. DG16 and DG14 GPS Board Dimensions—inches [mm] . . . . . . . . .5
Figure 1.2. DG16 Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 1.3. Pin Configuration of the J301Connector . . . . . . . . . . . . . . . . . . . . . 10
Figure 1.4. External Equipment Interfacing Diagram. . . . . . . . . . . . . . . . . . . . . 12
Figure 1.5. DG16 Sensor Power-I/O Connections. . . . . . . . . . . . . . . . . . . . . . . 13
Figure 1.6. DG16 Board Development Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 1.7. DG16 Sensor Development Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Figure 2.1. DG16 Board Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 3.1. GPS Epochs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Figure 3.2. PPS Synchronization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 3.3. Timing Pulse Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 3.4. Relationship of GPS Time in PRN Record to Output of
1PPS Pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Figure 3.5. Rotation and Translation Between Coordinate Systems . . . . . . . . . 51
Figure 4.1. RTCM Base Station System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Figure 4.2. RTCM Remote System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 4.1. Rotation and Translation Between Coordinate Systems . . . . . . . . . 82
Figure 4.2. Mercator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Figure 4.3. Transverse Mercator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Figure 4.4. Oblique Mercator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Figure 4.5. Stereographic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Figure 4.6. Lambert Conformal Conic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Figure 4.7. SEM Mask Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153
Figure 4.8. Rotation and Translation Between the WGS-72 and
WGS-84 Coordinate Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . .173
Figure A.1. Component of UDM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Figure A.2. Folder List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Figure A.3. Message Parameter Pane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

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