TDOA measurements at 105000 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 4112 | 2019-04-20T21-48-29_105000000_pankrac | 2019-04-20T21-48-29_105000000_luna |
|---|
| gain | [7, 7, 7, 1] | [9, 9, 9, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 105000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.869 stddev = 0.007 reference, 0.737 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-48-29_105000000_pankrac <--> 2019-04-20T21-48-29_105000000_luna (pass 1)
reference error = 0.309214 ppm, target error = 0.082847 ppm
Measured dist: -1.588721 target fitness: 1.833431 stddevs: 1.621368 target, 0.085099 reference
gold result: -0.000000
2019-04-20T21-48-29_105000000_pankrac <--> 2019-04-20T21-48-29_105000000_luna (pass 2)
snr: 52.6 47.9 dB
reference error = -0.012213 ppm, target error = 0.032357 ppm
Measured dist: -1.869027 target fitness: 1.835016 stddevs: 0.736915 target, 0.007409 reference
gold result: -0.000000
| correlation 4113 | 2019-04-20T21-48-29_105000000_pankrac | 2019-04-20T21-48-29_105000000_brmlab |
|---|
| gain | [7, 7, 7, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 105000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.823 stddev = 0.010 reference, 0.751 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-48-29_105000000_pankrac <--> 2019-04-20T21-48-29_105000000_brmlab (pass 1)
reference error = 0.490801 ppm, target error = 0.032821 ppm
Measured dist: -1.979677 target fitness: 1.855872 stddevs: 2.938874 target, 0.135458 reference
gold result: -0.000000
2019-04-20T21-48-29_105000000_pankrac <--> 2019-04-20T21-48-29_105000000_brmlab (pass 2)
snr: 52.6 60.1 dB
reference error = 0.034489 ppm, target error = 0.013196 ppm
Measured dist: -1.823136 target fitness: 1.875052 stddevs: 0.751201 target, 0.010343 reference
gold result: -0.000000
| correlation 4114 | 2019-04-20T21-48-29_105000000_pankrac | 2019-04-20T21-48-29_105000000_brevnov |
|---|
| gain | [7, 7, 7, 1] | [2, 2, 2, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 105000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -3.258 stddev = 0.004 reference, 0.610 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-48-29_105000000_pankrac <--> 2019-04-20T21-48-29_105000000_brevnov (pass 1)
reference error = -0.002198 ppm, target error = 0.096805 ppm
Measured dist: -3.260415 target fitness: 1.824146 stddevs: 0.607895 target, 0.004170 reference
gold result: -0.000000
2019-04-20T21-48-29_105000000_pankrac <--> 2019-04-20T21-48-29_105000000_brevnov (pass 2)
snr: 52.6 42.4 dB
reference error = -0.000162 ppm, target error = 0.097860 ppm
Measured dist: -3.258177 target fitness: 1.824170 stddevs: 0.610178 target, 0.003882 reference
gold result: -0.000000
| correlation 4115 | 2019-04-20T21-48-29_105000000_luna | 2019-04-20T21-48-29_105000000_brmlab |
|---|
| gain | [9, 9, 9, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 105000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 0.141 stddev = 0.008 reference, 0.206 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-48-29_105000000_luna <--> 2019-04-20T21-48-29_105000000_brmlab (pass 1)
reference error = 0.222550 ppm, target error = 0.048553 ppm
Measured dist: 0.481991 target fitness: 1.860446 stddevs: 1.322272 target, 0.061792 reference
gold result: -0.000000
2019-04-20T21-48-29_105000000_luna <--> 2019-04-20T21-48-29_105000000_brmlab (pass 2)
snr: 47.9 60.6 dB
reference error = -0.006439 ppm, target error = -0.008990 ppm
Measured dist: 0.141304 target fitness: 1.861757 stddevs: 0.205653 target, 0.007962 reference
gold result: -0.000000
| correlation 4116 | 2019-04-20T21-48-29_105000000_luna | 2019-04-20T21-48-29_105000000_brevnov |
|---|
| gain | [9, 9, 9, 1] | [2, 2, 2, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 105000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.716 stddev = 0.008 reference, 0.641 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-48-29_105000000_luna <--> 2019-04-20T21-48-29_105000000_brevnov (pass 1)
reference error = -0.308592 ppm, target error = 0.019140 ppm
Measured dist: -1.496382 target fitness: 1.827206 stddevs: 1.524439 target, 0.085258 reference
gold result: -0.000000
2019-04-20T21-48-29_105000000_luna <--> 2019-04-20T21-48-29_105000000_brevnov (pass 2)
snr: 47.9 42.4 dB
reference error = 0.014006 ppm, target error = 0.120071 ppm
Measured dist: -1.716224 target fitness: 1.825145 stddevs: 0.640620 target, 0.008290 reference
gold result: -0.000000
| correlation 4117 | 2019-04-20T21-48-29_105000000_brmlab | 2019-04-20T21-48-29_105000000_brevnov |
|---|
| gain | [3, 3, 3, 1] | [2, 2, 2, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 105000000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.800 stddev = 0.010 reference, 0.741 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-48-29_105000000_brmlab <--> 2019-04-20T21-48-29_105000000_brevnov (pass 1)
reference error = -0.493607 ppm, target error = -0.003437 ppm
Measured dist: -1.965432 target fitness: 1.844789 stddevs: 2.797670 target, 0.134645 reference
gold result: -0.000000
2019-04-20T21-48-29_105000000_brmlab <--> 2019-04-20T21-48-29_105000000_brevnov (pass 2)
snr: 60.1 42.4 dB
reference error = -0.033363 ppm, target error = 0.125019 ppm
Measured dist: -1.800327 target fitness: 1.841241 stddevs: 0.740552 target, 0.009893 reference
gold result: -0.000000
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
