Data Processing School :: Exercise CR3
| Source directory | /data/lofarschool/data/Exercise-CR1 |
|---|---|
| Contact person | Andreas Horneffer, Lars Bähren |
Context
Prerequisite
- Some C/C++ programming.
- Installed USG software (CR-Tools package)
- Successful completion of Exercise CR0
Description
Files & Directories
/data/lofarschool/data/Exercise-CR `-- 2006.02.23.04:02:50.283.event
And the exercise_cr3 executable.
Step-by-step instructions
- Execute the
exercise_cr3programm. - This processes one LOPES event in three different ways.
- Play around with the parameters in the source and see what happens.
Example outputs
The unmodified programm produces the following output:
(horneffer)lioff024> ./exercise_cr3 1) Testing on big LOPES30 event w/o direction-fit & w/o TV-Calib FirstStagePipeline::setCalibration: Frequency band for analysis: 4.3e+07 Hz to 7.4e+07 Hz. SecondStagePipeline:: switched off phase calibration. CRflaggingPlugin:calcWeights: Flagged Antenna #24 due to lack of signal. Event "/data/lofarschool/data/Exercise-CR/2006.02.23.04:02:50.283.event" fit results: Fit to X-Beam has converged: XHeight: 5.27036e-06 +/- 2.52093e-07 XWidth : 4.91536e-08 +/- -1.11584e-09 XCenter: -1.80235e-06 +/- -1.56835e-18 Fit to CC-Beam has converged: CCHeight: 5.99877e-06 +/- 2.67481e-07 CCWidth : 5.16044e-08 +/- -1.30126e-09 CCCenter: -1.80272e-06 +/- -6.61175e-11 2) Testing on big LOPES30 event with simplex-fit FirstStagePipeline::setCalibration: Frequency band for analysis: 4.3e+07 Hz to 7.4e+07 Hz. TVCalibrationPlugin: Not trusting Ant: 27 with residual badness: 0.202548 TVCalibrationPlugin: Not trusting Ant: 28 with residual badness: 0.160514 CRflaggingPlugin:calcWeights: Flagged Antenna #24 due to lack of signal. analyseLOPESevent::doPositionFitting: starting evaluateGrid(). analyseLOPESevent::doPositionFitting: starting SimplexFit(). SimplexFit: reducing simplex ## 0 ------------------------------- Azimuth: 275.13; 276.13; 275.13; 276.13 Elevation: 53.32; 53.32; 54.32; 54.32 Distance: 4000.0; 6000.0; 2000.0; 3000.0 Center: -1.807; -1.802; -1.792; -1.805 Height: 4.862; 6.500; 2.583; 3.802 SimplexFit: expanding simplex ## 1 ------------------------------- Azimuth: 275.13; 276.13; 276.47; 276.13 Elevation: 53.32; 53.32; 52.99; 54.32 Distance: 4000.0; 6000.0; 6666.7; 3000.0 Center: -1.807; -1.802; -1.803; -1.805 Height: 4.862; 6.500; 6.756; 3.802 . . . SimplexFit: reducing simplex ## 22 ------------------------------- Azimuth: 276.40; 276.38; 276.41; 276.41 Elevation: 53.08; 53.10; 53.08; 53.11 Distance: 6455.1; 6354.7; 6389.3; 6460.6 Center: -1.803; -1.803; -1.803; -1.803 Height: 6.807; 6.808; 6.807; 6.807 Event "/data/lofarschool/data/Exercise-CR/2006.02.23.04:02:50.283.event" fit results: Fit to X-Beam has converged: XHeight: 6.47303e-06 +/- 1.67425e-07 XWidth : 4.91414e-08 +/- -6.03305e-10 XCenter: -1.80407e-06 +/- -4.69194e-19 Fit to CC-Beam has converged: CCHeight: 6.80782e-06 +/- 1.94929e-07 CCWidth : 5.27394e-08 +/- -8.45719e-10 CCCenter: -1.80339e-06 +/- -4.33048e-11 3) Testing on big LOPES30 event with simplex-fit and upsampling FirstStagePipeline::setCalibration: Frequency band for analysis: 4.3e+07 Hz to 7.4e+07 Hz. TVCalibrationPlugin: Not trusting Ant: 27 with residual badness: 0.202548 TVCalibrationPlugin: Not trusting Ant: 28 with residual badness: 0.160514 CRflaggingPlugin:calcWeights: Flagged Antenna #24 due to lack of signal. SecondStagePipeline:: switched off phase calibration. SecondStagePipeline:: switched off RFI mitigation. analyseLOPESevent::SetupEvent: Upsampling: upBlockSize: 2048 upBlock: 63 filter: 12 analyseLOPESevent::SetupEvent: min(Times): -6.4 max(Times): -0.003125 analyseLOPESevent::doPositionFitting: starting evaluateGrid(). analyseLOPESevent::doPositionFitting: starting SimplexFit(). SimplexFit: reducing simplex ## 0 ------------------------------- Azimuth: 275.13; 276.13; 275.13; 276.13 Elevation: 53.32; 53.32; 54.32; 54.32 Distance: 4000.0; 6000.0; 2000.0; 3000.0 Center: -1.805; -1.806; -1.806; -1.803 Height: 4.741; 5.727; 3.238; 3.580 SimplexFit: expanding simplex ## 1 ------------------------------- Azimuth: 275.13; 276.13; 276.47; 276.13 Elevation: 53.32; 53.32; 52.99; 54.32 Distance: 4000.0; 6000.0; 6666.7; 3000.0 Center: -1.805; -1.806; -1.806; -1.803 Height: 4.741; 5.727; 6.119; 3.580 . . . SimplexFit: reducing simplex ## 24 ------------------------------- Azimuth: 276.48; 276.50; 276.47; 276.47 Elevation: 53.13; 53.14; 53.12; 53.14 Distance: 6743.8; 6906.2; 6830.3; 6766.7 Center: -1.806; -1.806; -1.806; -1.806 Height: 6.143; 6.140; 6.142; 6.142 Event "/data/lofarschool/data/Exercise-CR/2006.02.23.04:02:50.283.event" fit results: Fit to X-Beam has converged: XHeight: 5.79741e-06 +/- 9.57315e-08 XWidth : 4.97792e-08 +/- -1.93828e-10 XCenter: -1.80605e-06 +/- -2.51624e-20 Fit to CC-Beam has converged: CCHeight: 6.1423e-06 +/- 7.1493e-08 CCWidth : 5.08279e-08 +/- -1.55455e-10 CCCenter: -1.80587e-06 +/- -4.48362e-12 [2] Testing argumented constructor ... Elapsed: 3:59.30 - CPU: 227.714u+7.468s = 98.2%
Bug Reports
If you are experiencing trouble getting the exercise to work, this is the place to leave a note about it.