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56 Cards in this Set
- Front
- Back
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C&DH |
Command and data handler |
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CFE |
Core flight software |
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CFTP |
Spacecraft file transfer protocol |
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RTOS |
Real time operating system |
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ICD |
Interface control document |
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DMA |
Direct memory access |
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DRAM |
Dynamic memory |
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EEPROM |
Electronically Erasable Programmable Read Only Memory |
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EPROM |
Erasable Programmable Read Only Memory |
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MMU |
Memory Management Unit |
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RAM |
Random access Memory |
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ROM |
Read only Memory |
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SRAM |
Static memory |
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PROM |
Programmable Read Only Memory |
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WORM |
Written Once, Read Multiple |
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BAM |
Binary Angular Measurement |
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LSB |
Least Significant Bit (or byte) |
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MSB |
Most Significant Bit (or byte) |
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MSD |
Most Significant Digit |
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DR |
Dead/"Ded" Reckoning |
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ECEF |
Earth Centered - Earth Fixed |
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GNC |
Guidance Navigation Control |
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GPS |
Global positioning system |
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INS |
Inertial Navigation System |
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LORAN |
Long range aid to navigation |
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TAI |
International Atomic Time |
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TDT |
Dynamic Time |
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UTM |
Universal transverse mercator |
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UTC |
Universal Time Coordinated |
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UT1 |
Earth Rotational Time |
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NRE |
Non Recurring Engineering |
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DTE |
Data Terminal Equipment |
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DCE |
Data Communication Equipment |
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UART |
Universal Asynchronous Reciever/Transmitter |
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SV |
Space Vehicle |
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NGA |
National Geospatial Intelligence Agency |
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MSN |
Monitor Station Network |
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WGS-84 |
World Geodetic System |
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EOPP |
Earth orientation parameter prediction |
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JLOC |
Jammer Location |
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SA |
Selective Availability |
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NUDET |
Nuclear Detonation |
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SoL |
Safety of Life |
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PRN (2 types) |
Pseudo Random Noise C/A = Coarse Acquisition MLS = Maximum length sequence |
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DGPS |
Differential GPS |
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WAAS |
Wide area augmentation system |
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PVT |
Position Velocity Time |
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RF |
Radio frequency |
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LO |
Local oscillator |
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IF |
Intermediate frequency |
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LNA |
Low noise amplifier |
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VCO |
Voltage controlled amplifier |
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IQ |
Instep and Quadrature |
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DLL |
Delay Locked Loop |
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PLL |
Phase Locked Loop |
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DOP (4 types) |
Dilution of precision Geometric, horizontal, vertical, time, positional |
