TDOA measurements at 103400 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 4280 | 2019-04-20T23-10-33_103700000_pankrac | 2019-04-20T23-10-33_103700000_brmlab |
|---|
| gain | [9, 9, 9, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -2.432 stddev = 0.005 reference, 2.100 target [samples]; known correct: 0.877 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-20T23-10-33_103700000_pankrac <--> 2019-04-20T23-10-33_103700000_brmlab (pass 1)
reference error = -0.355672 ppm, target error = -0.054583 ppm
Measured dist: 1.721294 target fitness: 1.281080 stddevs: 4.438593 target, 0.096580 reference
gold result: 0.876883
2019-04-20T23-10-33_103700000_pankrac <--> 2019-04-20T23-10-33_103700000_brmlab (pass 2)
snr: 12.5 14.9 dB
reference error = -0.006011 ppm, target error = -0.015634 ppm
Measured dist: -2.432048 target fitness: 1.279415 stddevs: 2.099596 target, 0.004685 reference
gold result: 0.876883
| correlation 4281 | 2019-04-20T23-10-33_103700000_pankrac | 2019-04-20T23-10-33_103700000_brevnov |
|---|
| gain | [9, 9, 9, 1] | [7, 7, 7, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -60.026 stddev = 0.004 reference, 2.396 target [samples]; known correct: -58.566 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-10-33_103700000_pankrac <--> 2019-04-20T23-10-33_103700000_brevnov (pass 1)
reference error = -0.023190 ppm, target error = 0.007361 ppm
Measured dist: -60.011079 target fitness: 1.356444 stddevs: 2.402446 target, 0.007583 reference
gold result: -58.565514
2019-04-20T23-10-33_103700000_pankrac <--> 2019-04-20T23-10-33_103700000_brevnov (pass 2)
snr: 12.5 31.9 dB
reference error = 0.000075 ppm, target error = -0.007206 ppm
Measured dist: -60.025942 target fitness: 1.357839 stddevs: 2.395941 target, 0.003787 reference
gold result: -58.565514
| correlation 4282 | 2019-04-20T23-10-33_103700000_pankrac | 2019-04-20T23-10-33_103700000_luna |
|---|
| gain | [9, 9, 9, 1] | [12, 12, 12, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -48.186 stddev = 0.007 reference, 4.339 target [samples]; known correct: -49.049 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-10-33_103700000_pankrac <--> 2019-04-20T23-10-33_103700000_luna (pass 1)
reference error = 0.318073 ppm, target error = 0.033559 ppm
Measured dist: -46.628076 target fitness: 1.298176 stddevs: 5.218681 target, 0.086432 reference
gold result: -49.049125
2019-04-20T23-10-33_103700000_pankrac <--> 2019-04-20T23-10-33_103700000_luna (pass 2)
snr: 12.5 10.7 dB
reference error = -0.015208 ppm, target error = -0.002116 ppm
Measured dist: -48.186006 target fitness: 1.294979 stddevs: 4.338909 target, 0.007361 reference
gold result: -49.049125
| correlation 4283 | 2019-04-20T23-10-33_103700000_brmlab | 2019-04-20T23-10-33_103700000_brevnov |
|---|
| 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 | 103700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -57.465 stddev = 0.005 reference, 1.597 target [samples]; known correct: -59.442 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-10-33_103700000_brmlab <--> 2019-04-20T23-10-33_103700000_brevnov (pass 1)
reference error = 0.346987 ppm, target error = 0.146303 ppm
Measured dist: -56.683023 target fitness: 1.351545 stddevs: 3.769999 target, 0.094202 reference
gold result: -59.442397
2019-04-20T23-10-33_103700000_brmlab <--> 2019-04-20T23-10-33_103700000_brevnov (pass 2)
snr: 14.9 31.9 dB
reference error = -0.011536 ppm, target error = 0.112388 ppm
Measured dist: -57.465363 target fitness: 1.354867 stddevs: 1.597468 target, 0.005198 reference
gold result: -59.442397
| correlation 4284 | 2019-04-20T23-10-33_103700000_brmlab | 2019-04-20T23-10-33_103700000_luna |
|---|
| gain | [6, 6, 6, 1] | [12, 12, 12, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -45.887 stddev = 0.011 reference, 3.216 target [samples]; known correct: -49.926 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-10-33_103700000_brmlab <--> 2019-04-20T23-10-33_103700000_luna (pass 1)
reference error = 0.707282 ppm, target error = 0.054156 ppm
Measured dist: -46.455972 target fitness: 1.287992 stddevs: 7.463540 target, 0.191157 reference
gold result: -49.926007
2019-04-20T23-10-33_103700000_brmlab <--> 2019-04-20T23-10-33_103700000_luna (pass 2)
snr: 14.9 10.7 dB
reference error = -0.034280 ppm, target error = -0.009312 ppm
Measured dist: -45.886904 target fitness: 1.298965 stddevs: 3.216226 target, 0.010769 reference
gold result: -49.926007
| correlation 4285 | 2019-04-20T23-10-33_103700000_brevnov | 2019-04-20T23-10-33_103700000_luna |
|---|
| gain | [7, 7, 7, 1] | [12, 12, 12, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 103700000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 12.652 stddev = 0.006 reference, 1.914 target [samples]; known correct: 9.516 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-20T23-10-33_103700000_brevnov <--> 2019-04-20T23-10-33_103700000_luna (pass 1)
reference error = 0.336665 ppm, target error = -0.147782 ppm
Measured dist: 11.248957 target fitness: 1.256805 stddevs: 3.602607 target, 0.091118 reference
gold result: 9.516389
2019-04-20T23-10-33_103700000_brevnov <--> 2019-04-20T23-10-33_103700000_luna (pass 2)
snr: 31.9 10.7 dB
reference error = -0.011399 ppm, target error = -0.064935 ppm
Measured dist: 12.652067 target fitness: 1.257057 stddevs: 1.913801 target, 0.006493 reference
gold result: 9.516389
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
