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 4238 | 2019-04-20T22-36-22_92300000_pankrac | 2019-04-20T22-36-22_92300000_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 | 92300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.338 stddev = 0.009 reference, 0.958 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T22-36-22_92300000_pankrac <--> 2019-04-20T22-36-22_92300000_brmlab (pass 1)
reference error = -0.342030 ppm, target error = -0.125801 ppm
Measured dist: -1.016308 target fitness: 1.047172 stddevs: 20.270477 target, 0.092374 reference
gold result: -0.000000
2019-04-20T22-36-22_92300000_pankrac <--> 2019-04-20T22-36-22_92300000_brmlab (pass 2)
snr: 39.9 50.2 dB
reference error = -0.028267 ppm, target error = -0.051374 ppm
Measured dist: -1.338232 target fitness: 1.042803 stddevs: 0.957643 target, 0.008768 reference
gold result: -0.000000
| correlation 4239 | 2019-04-20T22-36-22_92300000_pankrac | 2019-04-20T22-36-22_92300000_luna |
|---|
| 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 | 92300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -0.459 stddev = 0.011 reference, 1.302 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-36-22_92300000_pankrac <--> 2019-04-20T22-36-22_92300000_luna (pass 1)
reference error = 0.269917 ppm, target error = 0.103249 ppm
Measured dist: 0.111699 target fitness: 1.045844 stddevs: 14.786487 target, 0.073552 reference
gold result: -0.000000
2019-04-20T22-36-22_92300000_pankrac <--> 2019-04-20T22-36-22_92300000_luna (pass 2)
snr: 39.9 32.1 dB
reference error = 0.031315 ppm, target error = -0.042694 ppm
Measured dist: -0.458832 target fitness: 1.042836 stddevs: 1.302458 target, 0.010816 reference
gold result: -0.000000
| correlation 4240 | 2019-04-20T22-36-22_92300000_pankrac | 2019-04-20T22-36-22_92300000_brevnov |
|---|
| gain | [8, 8, 8, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 92300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -1.770 stddev = 0.004 reference, 1.721 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-36-22_92300000_pankrac <--> 2019-04-20T22-36-22_92300000_brevnov (pass 1)
reference error = -0.023152 ppm, target error = 0.061043 ppm
Measured dist: -1.820842 target fitness: 1.042684 stddevs: 1.768921 target, 0.007393 reference
gold result: -0.000000
2019-04-20T22-36-22_92300000_pankrac <--> 2019-04-20T22-36-22_92300000_brevnov (pass 2)
snr: 39.9 39.2 dB
reference error = 0.003503 ppm, target error = 0.070767 ppm
Measured dist: -1.769574 target fitness: 1.042694 stddevs: 1.721093 target, 0.003985 reference
gold result: -0.000000
| correlation 4241 | 2019-04-20T22-36-22_92300000_brmlab | 2019-04-20T22-36-22_92300000_luna |
|---|
| gain | [3, 3, 3, 1] | [10, 10, 10, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 92300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 1.059 stddev = 0.012 reference, 0.746 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-36-22_92300000_brmlab <--> 2019-04-20T22-36-22_92300000_luna (pass 1)
reference error = 0.625151 ppm, target error = 0.088835 ppm
Measured dist: 1.127289 target fitness: 1.055276 stddevs: 28.783772 target, 0.170443 reference
gold result: -0.000000
2019-04-20T22-36-22_92300000_brmlab <--> 2019-04-20T22-36-22_92300000_luna (pass 2)
snr: 49.9 32.1 dB
reference error = 0.034716 ppm, target error = 0.026276 ppm
Measured dist: 1.059268 target fitness: 1.042989 stddevs: 0.745527 target, 0.011515 reference
gold result: -0.000000
| correlation 4242 | 2019-04-20T22-36-22_92300000_brmlab | 2019-04-20T22-36-22_92300000_brevnov |
|---|
| gain | [3, 3, 3, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 92300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -0.496 stddev = 0.005 reference, 1.510 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-36-22_92300000_brmlab <--> 2019-04-20T22-36-22_92300000_brevnov (pass 1)
reference error = 0.359584 ppm, target error = 0.085556 ppm
Measured dist: 0.424670 target fitness: 1.047015 stddevs: 17.827412 target, 0.097497 reference
gold result: -0.000000
2019-04-20T22-36-22_92300000_brmlab <--> 2019-04-20T22-36-22_92300000_brevnov (pass 2)
snr: 50.2 39.1 dB
reference error = -0.013771 ppm, target error = -0.027321 ppm
Measured dist: -0.496190 target fitness: 1.042991 stddevs: 1.509749 target, 0.005322 reference
gold result: -0.000000
| correlation 4243 | 2019-04-20T22-36-22_92300000_luna | 2019-04-20T22-36-22_92300000_brevnov |
|---|
| gain | [10, 10, 10, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 92300000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -2.105 stddev = 0.008 reference, 1.409 target [samples]; known correct: 0.000 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T22-36-22_92300000_luna <--> 2019-04-20T22-36-22_92300000_brevnov (pass 1)
reference error = -0.330500 ppm, target error = -0.031994 ppm
Measured dist: -0.795159 target fitness: 1.046918 stddevs: 17.124903 target, 0.089394 reference
gold result: -0.000000
2019-04-20T22-36-22_92300000_luna <--> 2019-04-20T22-36-22_92300000_brevnov (pass 2)
snr: 32.1 39.1 dB
reference error = 0.012045 ppm, target error = -0.006391 ppm
Measured dist: -2.104652 target fitness: 1.042702 stddevs: 1.409400 target, 0.007946 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
