PART3 » History » Version 40
COLIN, Tony, 03/22/2016 11:57 PM
| 1 | 20 | COLIN, Tony | h1. PART 5 : Implementation. |
|---|---|---|---|
| 2 | 2 | COLIN, Tony | |
| 3 | 20 | COLIN, Tony | {{toc}} |
| 4 | 2 | COLIN, Tony | |
| 5 | 20 | COLIN, Tony | p(. ....................... |
| 6 | 2 | COLIN, Tony | |
| 7 | 2 | COLIN, Tony | --- |
| 8 | 2 | COLIN, Tony | |
| 9 | 4 | COLIN, Tony | h2. 1 - Starting point. |
| 10 | 2 | COLIN, Tony | |
| 11 | 34 | COLIN, Tony | h3. a - Receiver scheme and milestones. |
| 12 | 1 | COLIN, Tony | |
| 13 | 34 | COLIN, Tony | ....... |
| 14 | 34 | COLIN, Tony | |
| 15 | 34 | COLIN, Tony | h3. b - Quid about LabVIEW. |
| 16 | 34 | COLIN, Tony | |
| 17 | 34 | COLIN, Tony | |
| 18 | 34 | COLIN, Tony | ....... |
| 19 | 34 | COLIN, Tony | |
| 20 | 34 | COLIN, Tony | Input : GPS signal of sampling frequency 38.192 MHz at intermediate frequency 9.55 MHz from CD *[1]* under GNSS_signal_records/GPSdata-DiscreteComponents-fs38_192-if9_55.bin |
| 21 | 34 | COLIN, Tony | |
| 22 | 34 | COLIN, Tony | h3. c - Local C/A code generation. |
| 23 | 34 | COLIN, Tony | |
| 24 | 34 | COLIN, Tony | Generation : _CA_code.vi_ with subVI _CA_generatorG1.vi_ _CA_generatorG2.vi_ |
| 25 | 4 | COLIN, Tony | |
| 26 | 4 | COLIN, Tony | --- |
| 27 | 4 | COLIN, Tony | |
| 28 | 4 | COLIN, Tony | h2. 2 - Acquisition. |
| 29 | 4 | COLIN, Tony | |
| 30 | 37 | JANVIER, Thibault | Justification acquisition method in terms of accuracy and time execution |
| 31 | 37 | JANVIER, Thibault | Justification of the step of 500Hz |
| 32 | 37 | JANVIER, Thibault | Methods to avoid the data bit transition while running acquisition |
| 33 | 37 | JANVIER, Thibault | Frequency refine is needed for the PLL of the tracking to converge |
| 34 | 37 | JANVIER, Thibault | Definition of the threshold and how it is implemented |
| 35 | 37 | JANVIER, Thibault | |
| 36 | 37 | JANVIER, Thibault | |
| 37 | 4 | COLIN, Tony | h3. ....... |
| 38 | 4 | COLIN, Tony | |
| 39 | 4 | COLIN, Tony | ........... |
| 40 | 4 | COLIN, Tony | |
| 41 | 4 | COLIN, Tony | --- |
| 42 | 4 | COLIN, Tony | |
| 43 | 4 | COLIN, Tony | h2. 3 - Tracking. |
| 44 | 4 | COLIN, Tony | |
| 45 | 4 | COLIN, Tony | h3. ....... |
| 46 | 4 | COLIN, Tony | |
| 47 | 4 | COLIN, Tony | ........... |
| 48 | 4 | COLIN, Tony | |
| 49 | 35 | COLIN, Tony | p=. !TrackingMin.PNG! |
| 50 | 35 | COLIN, Tony | |
| 51 | 4 | COLIN, Tony | --- |
| 52 | 4 | COLIN, Tony | |
| 53 | 4 | COLIN, Tony | h2. 4 - Navigation Data decoding. |
| 54 | 4 | COLIN, Tony | |
| 55 | 13 | COLIN, Tony | *See the UML Diagram of Section 4 under :* attachment:"NavigationData.PNG". |
| 56 | 10 | COLIN, Tony | |
| 57 | 29 | COLIN, Tony | h3. a - Delimiting subframes. |
| 58 | 1 | COLIN, Tony | |
| 59 | 29 | COLIN, Tony | The files involved are : |
| 60 | 29 | COLIN, Tony | - _FindPreamble.vi_ |
| 61 | 29 | COLIN, Tony | - _TestFindPreamble.vi_ |
| 62 | 29 | COLIN, Tony | - _GenerateFrame.vi_ |
| 63 | 29 | COLIN, Tony | - _ParityCheck.vi_ |
| 64 | 1 | COLIN, Tony | |
| 65 | 1 | COLIN, Tony | p=. !Preamble1.PNG! !Preamble2.PNG! |
| 66 | 1 | COLIN, Tony | |
| 67 | 23 | COLIN, Tony | p((((. *Figure 5. :* Cross-correlation between navigation frame and local preamble. *Figure 5. :* Subframes with index of delimitation. |
| 68 | 26 | COLIN, Tony | |
| 69 | 29 | COLIN, Tony | h3. b- Decoding ephemeris and information within the frame. |
| 70 | 23 | COLIN, Tony | |
| 71 | 29 | COLIN, Tony | The files involved are : |
| 72 | 29 | COLIN, Tony | - _Ephemeris.vi_ |
| 73 | 29 | COLIN, Tony | - _BinaryArrayToDecimal.vi_ |
| 74 | 29 | COLIN, Tony | - _twosComp2dec.vi_ |
| 75 | 29 | COLIN, Tony | - _ParityCheck.vi_ |
| 76 | 36 | COLIN, Tony | - _TestEphemeris.vi_ |
| 77 | 4 | COLIN, Tony | |
| 78 | 4 | COLIN, Tony | --- |
| 79 | 4 | COLIN, Tony | |
| 80 | 4 | COLIN, Tony | h2. 5 - Localization computation. |
| 81 | 10 | COLIN, Tony | |
| 82 | 14 | COLIN, Tony | *See the UML Diagram of Section 5 under :* attachment:"Localization.PNG" |
| 83 | 4 | COLIN, Tony | |
| 84 | 31 | COLIN, Tony | h3. a - Satellite position. |
| 85 | 1 | COLIN, Tony | |
| 86 | 31 | COLIN, Tony | The files involved are : |
| 87 | 31 | COLIN, Tony | - _SatellitePosition.vi_ |
| 88 | 31 | COLIN, Tony | - _TestSatellitePosition.vi_ |
| 89 | 31 | COLIN, Tony | - _Check_time.vi_ |
| 90 | 24 | COLIN, Tony | |
| 91 | 23 | COLIN, Tony | p=. !SatPos.PNG! |
| 92 | 31 | COLIN, Tony | *Figure 5. :* Interface with ephemeris as input and illustration of the satellite position. |
| 93 | 8 | COLIN, Tony | |
| 94 | 32 | COLIN, Tony | h3. b - Pseudoranges. |
| 95 | 1 | COLIN, Tony | |
| 96 | 32 | COLIN, Tony | The file involved is : |
| 97 | 32 | COLIN, Tony | _PseudorangesComputation.vi_ |
| 98 | 8 | COLIN, Tony | |
| 99 | 33 | COLIN, Tony | h3. c - Least Square solution for position determination. |
| 100 | 1 | COLIN, Tony | |
| 101 | 33 | COLIN, Tony | The files involved are : |
| 102 | 33 | COLIN, Tony | - _LeastSquarePosition.vi_ |
| 103 | 33 | COLIN, Tony | - _SatelliteRotationECEF.vi_ |
| 104 | 33 | COLIN, Tony | - _toTopocentric.vi_ |
| 105 | 33 | COLIN, Tony | - _CartesianToGeodetic.vi_ |
| 106 | 33 | COLIN, Tony | - _TroposphericCorrection.vi_ |
| 107 | 8 | COLIN, Tony | |
| 108 | 8 | COLIN, Tony | h2. 6 - Complete UML Diagram of the receiver. |
| 109 | 2 | COLIN, Tony | |
| 110 | 39 | COLIN, Tony | *The UML diagram is available under :* attachment:"UMLDiagram.png" |
| 111 | 6 | COLIN, Tony | |
| 112 | 40 | COLIN, Tony | Here is a small overview of the structure : |
| 113 | 40 | COLIN, Tony | |
| 114 | 40 | COLIN, Tony | p=. !UMLDoverview.PNG! |
| 115 | 40 | COLIN, Tony | |
| 116 | 2 | COLIN, Tony | --- |
| 117 | 3 | COLIN, Tony | |
| 118 | 3 | COLIN, Tony | *References :* |
| 119 | 3 | COLIN, Tony | *[1]* K. Borre, D. M. Akos, N. Bertelsen, P. Rinder, S. H. Jensen, A software-defined GPS and GALILEO receiver |