TDOA measurements at 101600 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 4406 | 2019-04-21T00-18-02_101600000_pankrac | 2019-04-21T00-18-02_101600000_luna |
|---|
| gain | [6, 6, 6, 1] | [7, 7, 7, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 21.009 stddev = 0.005 reference, 0.840 target [samples]; known correct: 29.154 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-21T00-18-02_101600000_pankrac <--> 2019-04-21T00-18-02_101600000_luna (pass 1)
reference error = 0.297669 ppm, target error = 0.029286 ppm
Measured dist: 19.874674 target fitness: 2.525352 stddevs: 1.969785 target, 0.081722 reference
gold result: 29.153519
2019-04-21T00-18-02_101600000_pankrac <--> 2019-04-21T00-18-02_101600000_luna (pass 2)
snr: 27.5 29.5 dB
reference error = -0.006006 ppm, target error = 0.012160 ppm
Measured dist: 21.009170 target fitness: 2.532001 stddevs: 0.839773 target, 0.005050 reference
gold result: 29.153519
| correlation 4407 | 2019-04-21T00-18-02_101600000_pankrac | 2019-04-21T00-18-02_101600000_brmlab |
|---|
| gain | [6, 6, 6, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 31.875 stddev = 0.005 reference, 0.972 target [samples]; known correct: 31.475 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-18-02_101600000_pankrac <--> 2019-04-21T00-18-02_101600000_brmlab (pass 1)
reference error = -0.355339 ppm, target error = -0.059789 ppm
Measured dist: 30.029808 target fitness: 2.515301 stddevs: 2.593157 target, 0.095910 reference
gold result: 31.474600
2019-04-21T00-18-02_101600000_pankrac <--> 2019-04-21T00-18-02_101600000_brmlab (pass 2)
snr: 27.5 29.9 dB
reference error = -0.006352 ppm, target error = -0.001267 ppm
Measured dist: 31.874965 target fitness: 2.509908 stddevs: 0.972085 target, 0.004744 reference
gold result: 31.474600
| correlation 4408 | 2019-04-21T00-18-02_101600000_pankrac | 2019-04-21T00-18-02_101600000_brevnov |
|---|
| gain | [6, 6, 6, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -37.176 stddev = 0.004 reference, 1.766 target [samples]; known correct: -2.216 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-18-02_101600000_pankrac <--> 2019-04-21T00-18-02_101600000_brevnov (pass 1)
reference error = -0.016699 ppm, target error = -0.104923 ppm
Measured dist: -37.217807 target fitness: 2.540267 stddevs: 1.786955 target, 0.005626 reference
gold result: -2.216170
2019-04-21T00-18-02_101600000_pankrac <--> 2019-04-21T00-18-02_101600000_brevnov (pass 2)
snr: 27.5 38.0 dB
reference error = 0.001916 ppm, target error = -0.120613 ppm
Measured dist: -37.175849 target fitness: 2.540050 stddevs: 1.766232 target, 0.004109 reference
gold result: -2.216170
| correlation 4409 | 2019-04-21T00-18-02_101600000_luna | 2019-04-21T00-18-02_101600000_brmlab |
|---|
| gain | [7, 7, 7, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 11.072 stddev = 0.010 reference, 0.517 target [samples]; known correct: 2.321 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-18-02_101600000_luna <--> 2019-04-21T00-18-02_101600000_brmlab (pass 1)
reference error = -0.681344 ppm, target error = -0.068178 ppm
Measured dist: 15.277640 target fitness: 2.495150 stddevs: 4.300724 target, 0.184133 reference
gold result: 2.321080
2019-04-21T00-18-02_101600000_luna <--> 2019-04-21T00-18-02_101600000_brmlab (pass 2)
snr: 29.5 29.8 dB
reference error = 0.032059 ppm, target error = 0.026423 ppm
Measured dist: 11.072291 target fitness: 2.507782 stddevs: 0.516782 target, 0.009957 reference
gold result: 2.321080
| correlation 4410 | 2019-04-21T00-18-02_101600000_luna | 2019-04-21T00-18-02_101600000_brevnov |
|---|
| gain | [7, 7, 7, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -57.660 stddev = 0.010 reference, 1.038 target [samples]; known correct: -31.370 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-18-02_101600000_luna <--> 2019-04-21T00-18-02_101600000_brevnov (pass 1)
reference error = -0.275780 ppm, target error = -0.009445 ppm
Measured dist: -59.015611 target fitness: 2.566179 stddevs: 2.211195 target, 0.075829 reference
gold result: -31.369689
2019-04-21T00-18-02_101600000_luna <--> 2019-04-21T00-18-02_101600000_brevnov (pass 2)
snr: 29.5 38.0 dB
reference error = -0.034316 ppm, target error = -0.029508 ppm
Measured dist: -57.659651 target fitness: 2.571064 stddevs: 1.038087 target, 0.010419 reference
gold result: -31.369689
| correlation 4411 | 2019-04-21T00-18-02_101600000_brmlab | 2019-04-21T00-18-02_101600000_brevnov |
|---|
| gain | [4, 4, 4, 1] | [4, 4, 4, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 101600000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -68.995 stddev = 0.004 reference, 1.300 target [samples]; known correct: -33.691 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-18-02_101600000_brmlab <--> 2019-04-21T00-18-02_101600000_brevnov (pass 1)
reference error = 0.350369 ppm, target error = 0.010991 ppm
Measured dist: -70.207804 target fitness: 2.678987 stddevs: 2.549836 target, 0.094741 reference
gold result: -33.690770
2019-04-21T00-18-02_101600000_brmlab <--> 2019-04-21T00-18-02_101600000_brevnov (pass 2)
snr: 29.9 38.0 dB
reference error = -0.008174 ppm, target error = -0.077478 ppm
Measured dist: -68.995316 target fitness: 2.673370 stddevs: 1.299869 target, 0.004313 reference
gold result: -33.690770
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
