TDOA measurements at 92600 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 3968 | 2019-04-20T20-51-15_92600000_pankrac | 2019-04-20T20-51-15_92600000_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 | 92600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 0.481 stddev = 0.010 reference, 1.264 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-51-15_92600000_pankrac <--> 2019-04-20T20-51-15_92600000_luna (pass 1)
reference error = 0.292188 ppm, target error = 0.003529 ppm
Measured dist: -0.616836 target fitness: 1.097904 stddevs: 6.012137 target, 0.080643 reference
gold result: -0.000000
2019-04-20T20-51-15_92600000_pankrac <--> 2019-04-20T20-51-15_92600000_luna (pass 2)
snr: 40.7 34.2 dB
reference error = -0.007249 ppm, target error = 0.027164 ppm
Measured dist: 0.481453 target fitness: 1.094447 stddevs: 1.263971 target, 0.010121 reference
gold result: -0.000000
| correlation 3969 | 2019-04-20T20-51-15_92600000_pankrac | 2019-04-20T20-51-15_92600000_brmlab |
|---|
| 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 | 92600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -0.984 stddev = 0.007 reference, 0.868 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-51-15_92600000_pankrac <--> 2019-04-20T20-51-15_92600000_brmlab (pass 1)
reference error = -0.389681 ppm, target error = -0.029981 ppm
Measured dist: -0.576396 target fitness: 1.101547 stddevs: 8.805296 target, 0.106420 reference
gold result: -0.000000
2019-04-20T20-51-15_92600000_pankrac <--> 2019-04-20T20-51-15_92600000_brmlab (pass 2)
snr: 40.6 48.0 dB
reference error = 0.018698 ppm, target error = 0.034766 ppm
Measured dist: -0.984049 target fitness: 1.094887 stddevs: 0.867511 target, 0.006609 reference
gold result: -0.000000
| correlation 3970 | 2019-04-20T20-51-15_92600000_pankrac | 2019-04-20T20-51-15_92600000_brevnov |
|---|
| gain | [7, 7, 7, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 92600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -3.242 stddev = 0.005 reference, 1.690 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-51-15_92600000_pankrac <--> 2019-04-20T20-51-15_92600000_brevnov (pass 1)
reference error = -0.091030 ppm, target error = -0.060293 ppm
Measured dist: -3.359548 target fitness: 1.095405 stddevs: 2.324109 target, 0.024929 reference
gold result: -0.000000
2019-04-20T20-51-15_92600000_pankrac <--> 2019-04-20T20-51-15_92600000_brevnov (pass 2)
snr: 40.6 38.5 dB
reference error = 0.004837 ppm, target error = -0.052979 ppm
Measured dist: -3.242284 target fitness: 1.095112 stddevs: 1.690456 target, 0.004604 reference
gold result: -0.000000
| correlation 3971 | 2019-04-20T20-51-15_92600000_luna | 2019-04-20T20-51-15_92600000_brmlab |
|---|
| 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 | 92600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.390 stddev = 0.012 reference, 0.755 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-51-15_92600000_luna <--> 2019-04-20T20-51-15_92600000_brmlab (pass 1)
reference error = -0.676689 ppm, target error = -0.063750 ppm
Measured dist: -1.755416 target fitness: 1.117040 stddevs: 16.431183 target, 0.182911 reference
gold result: -0.000000
2019-04-20T20-51-15_92600000_luna <--> 2019-04-20T20-51-15_92600000_brmlab (pass 2)
snr: 34.2 46.9 dB
reference error = 0.022049 ppm, target error = -0.005001 ppm
Measured dist: -1.389791 target fitness: 1.095666 stddevs: 0.754866 target, 0.012277 reference
gold result: -0.000000
| correlation 3972 | 2019-04-20T20-51-15_92600000_luna | 2019-04-20T20-51-15_92600000_brevnov |
|---|
| gain | [9, 9, 9, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 92600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -3.116 stddev = 0.009 reference, 1.341 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-51-15_92600000_luna <--> 2019-04-20T20-51-15_92600000_brevnov (pass 1)
reference error = -0.384742 ppm, target error = -0.103834 ppm
Measured dist: -2.897019 target fitness: 1.100898 stddevs: 8.677198 target, 0.106042 reference
gold result: -0.000000
2019-04-20T20-51-15_92600000_luna <--> 2019-04-20T20-51-15_92600000_brevnov (pass 2)
snr: 34.2 38.5 dB
reference error = 0.015272 ppm, target error = -0.047961 ppm
Measured dist: -3.116037 target fitness: 1.096465 stddevs: 1.341291 target, 0.009352 reference
gold result: -0.000000
| correlation 3973 | 2019-04-20T20-51-15_92600000_brmlab | 2019-04-20T20-51-15_92600000_brevnov |
|---|
| gain | [2, 2, 2, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 92600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.515 stddev = 0.007 reference, 1.460 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T20-51-15_92600000_brmlab <--> 2019-04-20T20-51-15_92600000_brevnov (pass 1)
reference error = 0.266152 ppm, target error = 0.051581 ppm
Measured dist: -1.967642 target fitness: 1.100891 stddevs: 6.792676 target, 0.071930 reference
gold result: -0.000000
2019-04-20T20-51-15_92600000_brmlab <--> 2019-04-20T20-51-15_92600000_brevnov (pass 2)
snr: 47.7 38.5 dB
reference error = 0.022081 ppm, target error = -0.029900 ppm
Measured dist: -1.514919 target fitness: 1.096413 stddevs: 1.459931 target, 0.007129 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
