TDOA measurements at 96200 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 4316 | 2019-04-20T23-22-11_95700000_pankrac | 2019-04-20T23-22-11_95700000_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 | 95700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -43.245 stddev = 0.007 reference, 2.194 target [samples]; known correct: -41.645 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T23-22-11_95700000_pankrac <--> 2019-04-20T23-22-11_95700000_luna (pass 1)
reference error = 0.288453 ppm, target error = 0.042794 ppm
Measured dist: -42.073062 target fitness: 1.948340 stddevs: 3.445895 target, 0.079855 reference
gold result: -41.645325
2019-04-20T23-22-11_95700000_pankrac <--> 2019-04-20T23-22-11_95700000_luna (pass 2)
snr: 30.6 33.3 dB
reference error = -0.004066 ppm, target error = -0.026804 ppm
Measured dist: -43.244747 target fitness: 1.946823 stddevs: 2.194216 target, 0.006927 reference
gold result: -41.645325
| correlation 4317 | 2019-04-20T23-22-11_95700000_pankrac | 2019-04-20T23-22-11_95700000_brevnov |
|---|
| gain | [7, 7, 7, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 95700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -41.080 stddev = 0.004 reference, 1.668 target [samples]; known correct: -42.720 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-22-11_95700000_pankrac <--> 2019-04-20T23-22-11_95700000_brevnov (pass 1)
reference error = -0.019310 ppm, target error = -0.019504 ppm
Measured dist: -41.063572 target fitness: 1.968078 stddevs: 1.705100 target, 0.006526 reference
gold result: -42.719992
2019-04-20T23-22-11_95700000_pankrac <--> 2019-04-20T23-22-11_95700000_brevnov (pass 2)
snr: 30.6 59.0 dB
reference error = 0.000394 ppm, target error = -0.014666 ppm
Measured dist: -41.079748 target fitness: 1.968512 stddevs: 1.667527 target, 0.004267 reference
gold result: -42.719992
| correlation 4318 | 2019-04-20T23-22-11_95700000_pankrac | 2019-04-20T23-22-11_95700000_brmlab |
|---|
| gain | [7, 7, 7, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 95700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -2.431 stddev = 0.005 reference, 1.501 target [samples]; known correct: -2.870 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-22-11_95700000_pankrac <--> 2019-04-20T23-22-11_95700000_brmlab (pass 1)
reference error = 0.533008 ppm, target error = 0.025468 ppm
Measured dist: -8.307053 target fitness: 1.862125 stddevs: 5.215411 target, 0.145940 reference
gold result: -2.869775
2019-04-20T23-22-11_95700000_pankrac <--> 2019-04-20T23-22-11_95700000_brmlab (pass 2)
snr: 30.6 37.8 dB
reference error = -0.009729 ppm, target error = -0.019171 ppm
Measured dist: -2.430779 target fitness: 1.857588 stddevs: 1.501216 target, 0.005162 reference
gold result: -2.869775
| correlation 4319 | 2019-04-20T23-22-11_95700000_luna | 2019-04-20T23-22-11_95700000_brevnov |
|---|
| gain | [9, 9, 9, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 95700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 1.146 stddev = 0.007 reference, 1.131 target [samples]; known correct: -1.075 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-22-11_95700000_luna <--> 2019-04-20T23-22-11_95700000_brevnov (pass 1)
reference error = -0.314668 ppm, target error = -0.022693 ppm
Measured dist: 4.210790 target fitness: 1.871686 stddevs: 3.202675 target, 0.086534 reference
gold result: -1.074668
2019-04-20T23-22-11_95700000_luna <--> 2019-04-20T23-22-11_95700000_brevnov (pass 2)
snr: 33.3 59.0 dB
reference error = 0.011629 ppm, target error = 0.005797 ppm
Measured dist: 1.146330 target fitness: 1.871138 stddevs: 1.131274 target, 0.006554 reference
gold result: -1.074668
| correlation 4320 | 2019-04-20T23-22-11_95700000_luna | 2019-04-20T23-22-11_95700000_brmlab |
|---|
| gain | [9, 9, 9, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 95700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 40.585 stddev = 0.007 reference, 1.543 target [samples]; known correct: 38.776 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-22-11_95700000_luna <--> 2019-04-20T23-22-11_95700000_brmlab (pass 1)
reference error = 0.238123 ppm, target error = 0.061305 ppm
Measured dist: 38.914345 target fitness: 1.928352 stddevs: 2.812012 target, 0.065532 reference
gold result: 38.775550
2019-04-20T23-22-11_95700000_luna <--> 2019-04-20T23-22-11_95700000_brmlab (pass 2)
snr: 33.3 37.6 dB
reference error = 0.002279 ppm, target error = -0.018366 ppm
Measured dist: 40.584705 target fitness: 1.898428 stddevs: 1.543389 target, 0.006766 reference
gold result: 38.775550
| correlation 4321 | 2019-04-20T23-22-11_95700000_brevnov | 2019-04-20T23-22-11_95700000_brmlab |
|---|
| gain | [3, 3, 3, 1] | [3, 3, 3, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 95700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 38.461 stddev = 0.005 reference, 0.652 target [samples]; known correct: 39.850 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-22-11_95700000_brevnov <--> 2019-04-20T23-22-11_95700000_brmlab (pass 1)
reference error = 0.549672 ppm, target error = 0.031379 ppm
Measured dist: 32.424734 target fitness: 1.939946 stddevs: 5.285080 target, 0.150006 reference
gold result: 39.850218
2019-04-20T23-22-11_95700000_brevnov <--> 2019-04-20T23-22-11_95700000_brmlab (pass 2)
snr: 59.0 37.8 dB
reference error = -0.009196 ppm, target error = -0.002426 ppm
Measured dist: 38.461197 target fitness: 1.928294 stddevs: 0.651505 target, 0.004643 reference
gold result: 39.850218
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
