TDOA measurements at 96600 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 4028 | 2019-04-20T21-11-27_96600000_pankrac | 2019-04-20T21-11-27_96600000_luna |
|---|
| gain | [8, 8, 8, 1] | [8, 8, 8, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.769 stddev = 0.008 reference, 0.537 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T21-11-27_96600000_pankrac <--> 2019-04-20T21-11-27_96600000_luna (pass 1)
reference error = 0.304755 ppm, target error = -0.010859 ppm
Measured dist: -1.376609 target fitness: 1.654217 stddevs: 2.898796 target, 0.084968 reference
gold result: -0.000000
2019-04-20T21-11-27_96600000_pankrac <--> 2019-04-20T21-11-27_96600000_luna (pass 2)
snr: 43.8 28.1 dB
reference error = -0.014203 ppm, target error = 0.016914 ppm
Measured dist: -1.768630 target fitness: 1.656560 stddevs: 0.536802 target, 0.007736 reference
gold result: -0.000000
| correlation 4029 | 2019-04-20T21-11-27_96600000_pankrac | 2019-04-20T21-11-27_96600000_brmlab |
|---|
| gain | [8, 8, 8, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 0.040 stddev = 0.009 reference, 0.620 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-11-27_96600000_pankrac <--> 2019-04-20T21-11-27_96600000_brmlab (pass 1)
reference error = 0.493297 ppm, target error = -0.008268 ppm
Measured dist: 2.190559 target fitness: 1.654977 stddevs: 5.264719 target, 0.135207 reference
gold result: -0.000000
2019-04-20T21-11-27_96600000_pankrac <--> 2019-04-20T21-11-27_96600000_brmlab (pass 2)
snr: 43.8 53.1 dB
reference error = 0.031893 ppm, target error = 0.051112 ppm
Measured dist: 0.040023 target fitness: 1.663837 stddevs: 0.620358 target, 0.009460 reference
gold result: -0.000000
| correlation 4030 | 2019-04-20T21-11-27_96600000_pankrac | 2019-04-20T21-11-27_96600000_brevnov |
|---|
| gain | [8, 8, 8, 1] | [1, 1, 1, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 5.413 stddev = 0.005 reference, 3.056 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-11-27_96600000_pankrac <--> 2019-04-20T21-11-27_96600000_brevnov (pass 1)
reference error = -0.091125 ppm, target error = -0.021174 ppm
Measured dist: 5.235343 target fitness: 1.655320 stddevs: 3.184922 target, 0.025379 reference
gold result: -0.000000
2019-04-20T21-11-27_96600000_pankrac <--> 2019-04-20T21-11-27_96600000_brevnov (pass 2)
snr: 43.8 27.7 dB
reference error = 0.002856 ppm, target error = -0.027784 ppm
Measured dist: 5.413351 target fitness: 1.654149 stddevs: 3.055542 target, 0.004697 reference
gold result: -0.000000
| correlation 4031 | 2019-04-20T21-11-27_96600000_luna | 2019-04-20T21-11-27_96600000_brmlab |
|---|
| gain | [8, 8, 8, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 1.888 stddev = 0.008 reference, 0.891 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-11-27_96600000_luna <--> 2019-04-20T21-11-27_96600000_brmlab (pass 1)
reference error = 0.236071 ppm, target error = 0.046659 ppm
Measured dist: 2.529007 target fitness: 1.660991 stddevs: 2.424532 target, 0.066139 reference
gold result: -0.000000
2019-04-20T21-11-27_96600000_luna <--> 2019-04-20T21-11-27_96600000_brmlab (pass 2)
snr: 28.1 53.6 dB
reference error = -0.007793 ppm, target error = 0.011226 ppm
Measured dist: 1.888102 target fitness: 1.661544 stddevs: 0.891061 target, 0.008081 reference
gold result: -0.000000
| correlation 4032 | 2019-04-20T21-11-27_96600000_luna | 2019-04-20T21-11-27_96600000_brevnov |
|---|
| gain | [8, 8, 8, 1] | [1, 1, 1, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 6.298 stddev = 0.008 reference, 3.347 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-11-27_96600000_luna <--> 2019-04-20T21-11-27_96600000_brevnov (pass 1)
reference error = -0.392316 ppm, target error = -0.019459 ppm
Measured dist: 6.535195 target fitness: 1.641001 stddevs: 5.205756 target, 0.108600 reference
gold result: -0.000000
2019-04-20T21-11-27_96600000_luna <--> 2019-04-20T21-11-27_96600000_brevnov (pass 2)
snr: 28.1 27.6 dB
reference error = 0.019804 ppm, target error = -0.034587 ppm
Measured dist: 6.297889 target fitness: 1.640136 stddevs: 3.347489 target, 0.008400 reference
gold result: -0.000000
| correlation 4033 | 2019-04-20T21-11-27_96600000_brmlab | 2019-04-20T21-11-27_96600000_brevnov |
|---|
| gain | [3, 3, 3, 1] | [1, 1, 1, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 96600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 5.161 stddev = 0.008 reference, 2.510 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T21-11-27_96600000_brmlab <--> 2019-04-20T21-11-27_96600000_brevnov (pass 1)
reference error = -0.586356 ppm, target error = 0.047026 ppm
Measured dist: 4.099305 target fitness: 1.643243 stddevs: 6.817409 target, 0.159890 reference
gold result: -0.000000
2019-04-20T21-11-27_96600000_brmlab <--> 2019-04-20T21-11-27_96600000_brevnov (pass 2)
snr: 53.3 27.7 dB
reference error = -0.023418 ppm, target error = -0.013960 ppm
Measured dist: 5.160640 target fitness: 1.655595 stddevs: 2.509558 target, 0.007540 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
