TDOA measurements at 92300 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 4232 | 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 | 36.809 stddev = 0.009 reference, 1.264 target [samples]; known correct: 33.272 |
| 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 = 0.040910 ppm
Measured dist: 35.894763 target fitness: 1.406552 stddevs: 3.243744 target, 0.092374 reference
gold result: 33.272033
2019-04-20T22-36-22_92300000_pankrac <--> 2019-04-20T22-36-22_92300000_brmlab (pass 2)
snr: 13.1 22.2 dB
reference error = -0.028267 ppm, target error = 0.052574 ppm
Measured dist: 36.808582 target fitness: 1.399715 stddevs: 1.264152 target, 0.008768 reference
gold result: 33.272033
| correlation 4233 | 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 | 11.292 stddev = 0.011 reference, 1.448 target [samples]; known correct: 8.605 |
| 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 = 0.007473 ppm
Measured dist: 9.170444 target fitness: 1.358281 stddevs: 2.844391 target, 0.073552 reference
gold result: 8.604617
2019-04-20T22-36-22_92300000_pankrac <--> 2019-04-20T22-36-22_92300000_luna (pass 2)
snr: 13.1 21.0 dB
reference error = 0.031315 ppm, target error = 0.091742 ppm
Measured dist: 11.291674 target fitness: 1.357738 stddevs: 1.447620 target, 0.010816 reference
gold result: 8.604617
| correlation 4234 | 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 | -47.796 stddev = 0.004 reference, 1.885 target [samples]; known correct: -50.027 |
| 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 = 0.089667 ppm
Measured dist: -47.808273 target fitness: 1.386366 stddevs: 1.902896 target, 0.007393 reference
gold result: -50.026627
2019-04-20T22-36-22_92300000_pankrac <--> 2019-04-20T22-36-22_92300000_brevnov (pass 2)
snr: 13.1 28.9 dB
reference error = 0.003503 ppm, target error = 0.107109 ppm
Measured dist: -47.796020 target fitness: 1.387407 stddevs: 1.884641 target, 0.003985 reference
gold result: -50.026627
| correlation 4235 | 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 | -25.789 stddev = 0.012 reference, 0.511 target [samples]; known correct: -24.667 |
| 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 = 0.035235 ppm
Measured dist: -24.876847 target fitness: 1.363991 stddevs: 5.883416 target, 0.170443 reference
gold result: -24.667416
2019-04-20T22-36-22_92300000_brmlab <--> 2019-04-20T22-36-22_92300000_luna (pass 2)
snr: 21.9 21.0 dB
reference error = 0.034716 ppm, target error = 0.035024 ppm
Measured dist: -25.789131 target fitness: 1.363759 stddevs: 0.511034 target, 0.011515 reference
gold result: -24.667416
| correlation 4236 | 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 | -84.408 stddev = 0.005 reference, 1.169 target [samples]; known correct: -83.299 |
| 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 = -0.027455 ppm
Measured dist: -85.654486 target fitness: 1.475938 stddevs: 3.276752 target, 0.097497 reference
gold result: -83.298661
2019-04-20T22-36-22_92300000_brmlab <--> 2019-04-20T22-36-22_92300000_brevnov (pass 2)
snr: 22.3 28.9 dB
reference error = -0.013771 ppm, target error = 0.050275 ppm
Measured dist: -84.407819 target fitness: 1.499423 stddevs: 1.168552 target, 0.005322 reference
gold result: -83.298661
| correlation 4237 | 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 | -58.425 stddev = 0.008 reference, 1.169 target [samples]; known correct: -58.631 |
| 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 = -0.051826 ppm
Measured dist: -59.816188 target fitness: 1.403613 stddevs: 2.930757 target, 0.089394 reference
gold result: -58.631245
2019-04-20T22-36-22_92300000_luna <--> 2019-04-20T22-36-22_92300000_brevnov (pass 2)
snr: 21.0 28.9 dB
reference error = 0.012003 ppm, target error = 0.127239 ppm
Measured dist: -58.424923 target fitness: 1.387935 stddevs: 1.168824 target, 0.007955 reference
gold result: -58.631245
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
