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33 lines
1 KiB
Markdown
33 lines
1 KiB
Markdown
# Airshower + Beacon simulation
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Simulate receiving an airshower and beacon in an array.
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Using the beacon, the clocks can be calibrated.
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The ZHaires simulated airshower is stored in [./ZH_airshower](./ZH_airshower).
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The produced files can be read using [./earsim](./earsim).
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All quantities are stored in HDF5 files with the airshower data.
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Steps:
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1. Setup
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1. Beacon ([./aa_generate_beacon.py])
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1. Define tx position
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2. Read in antennas
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3. Sample beacon at each antenna
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4. Add to relevant polarisation
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5. Save antenna traces
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2. Timeoffset ([./ab_modify_clocks.py])
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1. Generate timeoffsets for each antenna
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2. Modify time samples
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2. Beacon analysis
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1. Find beacon frequency and phase in antenna traces ([./ba_measure_beacon_phase.py])
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2. Remove phase due to distances
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3. Analyse the sigma between antenna pairs
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4. Remove 0j part and take the mean of (:,j)
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5. Assign mean as clock shift phase of antenna
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3. Find k\*2\\pi phase offsets (periods) ([./ca_periods_from_showers.py])
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4. Rewrite clocks
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