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8:30 -
Introduction, Standard GPS Review
Introduction (why we need A-GPS)
Orbits
Power of received signal
Signal structure
Receiver architecture
A-GPS overview
9:45 - Assistance, the “A” in A-GPS
In-depth analysis of the frequency and code-delay search space
Typical acquisition scheme design for autonomous receivers
Cold, warm & hot starts
Autonomous cold start case study
In-depth analysis of search space reduction with assistance
Typical acquisition scheme design for assisted receivers
Assisted cold start case study
11:00 - Coarse-time navigation “Instant GPS”
NOTE:
this hour has a large amount of matrix algebra
Why coarse-time is a problem
“Don’t all receivers solve for time?” (No)
Algebraic nav description (5 states)
Millisecond integer ambiguity resolution
Coarse-time DOP
12:00 - Lunch on your own
1:30 - High sensitivity “Indoor GPS” I
Front End gain
Signal Strength to C/N0 conversion
Coherent integration, Coherent gain
Implementation losses: filtering effect, quantization loss, frequency
mismatch, code alignment loss
SNR worksheet
2:45 - High sensitivity “Indoor GPS” II
Integration time vs Correlator size
Longer coherent integration times
Limits to coherent integration: data bit transitions, data bit
alignment, frequency error, effect of receiver velocity
I, Q and non-coherent integration
Squaring loss
High sensitivity worksheet
4:00 - High sensitivity “Indoor GPS” III
Generating assistance data
Long term orbits
Frequency bins
PFA (probability of false alarm)
PD (probability of detection)
Sensitivity curves
Reference networks
Long term orbits/ephemeris extension
5:00 - Course Ends
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