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GPS
Data Receiver Figures and Tables
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to GPS Data Receiver Article
FIGURES
- 1) BLock Diagram GPS Xmitter.
- 2) C/A Code Generator.
- 3) Power spectrum of L1 signal.
- 4) Position Measurement.
- 5) L1 Data Receiver block diagram.
- 6) Preamp block diagram and schematic.
- 7) Layout and Artwork for Preamp.
- 8) Preamp box detail.
- 9) Quadrafilar Antenna detail.
- 10) 1575.42 Mhz Interdigital BPF detail.
- 11) 28.644 1st IF amp schematic.
- 12) 1st LO power spectrums.
- 13) 1st LO Multiplier X2,X3 and X3,
28.6 to 515.
- 14) none.
- 15) 515 to 1546 Multiplier artwork.
- 16) 515 to 1546 multiplier layout and
1546 filter detail.
- 17A) 28.644 Mhz Crystal oscillator schematic.
- 17B) Downconverter connection detail.
- 18) 2nd,3rd and 4th LO's and IF's schematic.
- 18A) 2nd,3rd and 4th LO's and IF's schematic.
- 19) Block diagram of C/A Code Scan/Track
system.
- 20) C/A Code Scan/Track Schematic.
- 21) Active 20Khz BPF Schematic.
- 22) Dither Clock Tuning Setup.
- 23) Doppler Scan/Track circuit.
- 24) none.
- 25) C/A Code Generator with Dither Code.
- 26) C/A Code Clock 10.23 Mhz VCXO circuit.
- 27) Block Diagram of Data Demodulator.
- 28) Data Demodulator circuit.
- 29) Elevation Plot for Satellite vehicle
#9, Nov. 23, 1989, Lat.=34.6', Long=-119.6'
- 30) Det. 20Khz IF and Doppler voltage
plots for Nov. 23, 1989.
- 31) 20Khz IF Spectrum from Satellite
Vehicle #9 , Nov. 23, 1989 at approx. 1400 PST.
- 32) Satellite Vehicle #9 Data for Nov.
23, 1989, 0345.
- 33) T LM and HOW Word Format.
TABLES
1) C/A Code Shift Register Tap
Points.
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