TDOA measurements at 215072 kHz
Legend
Spectrum:
- Green: zero offset
- Red: target signal
Waterfall:
Correlation function:
- Mouse over to show the fitted result
- White (on the very left): this correlation has been used (no retuning && sufficient fitness)
- Yellow on the left: fitness function (grows to the right)
- Cyan lines: lines fitted through the reference and target transmitters
- Yellow dots: correlation peaks that were used
- Red line: gold result (if the position of the target is known)
You will find the map at the bottom of the page. (jump there)
| correlation 4394 | 2019-04-21T00-14-10_215072000_pankrac | 2019-04-21T00-14-10_215072000_luna |
|---|
| gain | [9, 9, 9, 1] | [13, 13, 13, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 215072000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 16.556 stddev = 0.007 reference, 0.009 target [samples]; known correct: 17.569 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-21T00-14-10_215072000_pankrac <--> 2019-04-21T00-14-10_215072000_luna (pass 1)
reference error = 0.278086 ppm, target error = 0.277851 ppm
Measured dist: 16.579179 target fitness: 22.416064 stddevs: 0.376729 target, 0.075779 reference
gold result: 17.568872
2019-04-21T00-14-10_215072000_pankrac <--> 2019-04-21T00-14-10_215072000_luna (pass 2)
snr: 32.3 9.9 dB
reference error = -0.010716 ppm, target error = 0.001271 ppm
Measured dist: 16.555501 target fitness: 22.750815 stddevs: 0.009112 target, 0.006771 reference
gold result: 17.568872
| correlation 4395 | 2019-04-21T00-14-10_215072000_pankrac | 2019-04-21T00-14-10_215072000_brmlab |
|---|
| gain | [9, 9, 9, 1] | [8, 8, 8, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 215072000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 28.109 stddev = 0.006 reference, 0.018 target [samples]; known correct: 29.772 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-14-10_215072000_pankrac <--> 2019-04-21T00-14-10_215072000_brmlab (pass 1)
reference error = -0.367297 ppm, target error = -0.376503 ppm
Measured dist: 28.119162 target fitness: 17.369631 stddevs: 0.508155 target, 0.099565 reference
gold result: 29.772332
2019-04-21T00-14-10_215072000_pankrac <--> 2019-04-21T00-14-10_215072000_brmlab (pass 2)
snr: 32.4 33.7 dB
reference error = -0.014692 ppm, target error = -0.011359 ppm
Measured dist: 28.109006 target fitness: 17.654223 stddevs: 0.017813 target, 0.005636 reference
gold result: 29.772332
| correlation 4396 | 2019-04-21T00-14-10_215072000_pankrac | 2019-04-21T00-14-10_215072000_brevnov |
|---|
| gain | [9, 9, 9, 1] | [10, 10, 10, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 215072000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -43.103 stddev = 0.003 reference, 0.007 target [samples]; known correct: -41.534 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-14-10_215072000_pankrac <--> 2019-04-21T00-14-10_215072000_brevnov (pass 1)
reference error = -0.022740 ppm, target error = -0.025581 ppm
Measured dist: -43.101061 target fitness: 15.452405 stddevs: 0.034772 target, 0.007360 reference
gold result: -41.533591
2019-04-21T00-14-10_215072000_pankrac <--> 2019-04-21T00-14-10_215072000_brevnov (pass 2)
snr: 32.3 20.5 dB
reference error = -0.001354 ppm, target error = -0.002076 ppm
Measured dist: -43.102582 target fitness: 15.454558 stddevs: 0.007493 target, 0.003374 reference
gold result: -41.533591
| correlation 4397 | 2019-04-21T00-14-10_215072000_luna | 2019-04-21T00-14-10_215072000_brmlab |
|---|
| gain | [13, 13, 13, 1] | [8, 8, 8, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 215072000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 11.785 stddev = 0.007 reference, 0.014 target [samples]; known correct: 12.203 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-14-10_215072000_luna <--> 2019-04-21T00-14-10_215072000_brmlab (pass 1)
reference error = -0.646569 ppm, target error = -0.654029 ppm
Measured dist: 11.788696 target fitness: 21.080398 stddevs: 0.886718 target, 0.176605 reference
gold result: 12.203460
2019-04-21T00-14-10_215072000_luna <--> 2019-04-21T00-14-10_215072000_brmlab (pass 2)
snr: 10.0 33.5 dB
reference error = 0.004124 ppm, target error = -0.007427 ppm
Measured dist: 11.785150 target fitness: 23.470398 stddevs: 0.014293 target, 0.006672 reference
gold result: 12.203460
| correlation 4398 | 2019-04-21T00-14-10_215072000_luna | 2019-04-21T00-14-10_215072000_brevnov |
|---|
| gain | [13, 13, 13, 1] | [10, 10, 10, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 215072000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -59.699 stddev = 0.007 reference, 0.011 target [samples]; known correct: -59.102 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-14-10_215072000_luna <--> 2019-04-21T00-14-10_215072000_brevnov (pass 1)
reference error = -0.308391 ppm, target error = -0.302109 ppm
Measured dist: -59.685542 target fitness: 19.392393 stddevs: 0.405947 target, 0.083704 reference
gold result: -59.102463
2019-04-21T00-14-10_215072000_luna <--> 2019-04-21T00-14-10_215072000_brevnov (pass 2)
snr: 9.9 20.5 dB
reference error = 0.016907 ppm, target error = 0.004675 ppm
Measured dist: -59.698553 target fitness: 19.600065 stddevs: 0.010635 target, 0.007223 reference
gold result: -59.102463
| correlation 4399 | 2019-04-21T00-14-10_215072000_brmlab | 2019-04-21T00-14-10_215072000_brevnov |
|---|
| gain | [8, 8, 8, 1] | [10, 10, 10, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 215072000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -75.847 stddev = 0.005 reference, 0.020 target [samples]; known correct: -71.306 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-14-10_215072000_brmlab <--> 2019-04-21T00-14-10_215072000_brevnov (pass 1)
reference error = 0.366754 ppm, target error = 0.351438 ppm
Measured dist: -75.859556 target fitness: 12.447542 stddevs: 0.468707 target, 0.100128 reference
gold result: -71.305924
2019-04-21T00-14-10_215072000_brmlab <--> 2019-04-21T00-14-10_215072000_brevnov (pass 2)
snr: 33.7 20.5 dB
reference error = -0.010742 ppm, target error = -0.013658 ppm
Measured dist: -75.847460 target fitness: 12.548667 stddevs: 0.020010 target, 0.004729 reference
gold result: -71.305924
Map
- receivers
- real position (if known)- blue line - measurement hyperbola
- pale blue line - measurement hyperbola of measurement with high standard deviation
- red line - standard deviation error bar
