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 4418 | 2019-04-21T00-19-48_102900000_pankrac | 2019-04-21T00-19-48_102900000_luna |
|---|
| gain | [8, 8, 8, 1] | [9, 9, 9, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref:  tgt:  | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 102900000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -47.982 stddev = 0.006 reference, 2.346 target [samples]; known correct: -49.049 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
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Correlator log
2019-04-21T00-19-48_102900000_pankrac <--> 2019-04-21T00-19-48_102900000_luna (pass 1)
reference error = 0.309841 ppm, target error = 0.049067 ppm
Measured dist: -47.308121 target fitness: 2.067234 stddevs: 3.074992 target, 0.083813 reference
gold result: -49.049125
2019-04-21T00-19-48_102900000_pankrac <--> 2019-04-21T00-19-48_102900000_luna (pass 2)
snr: 15.7 17.3 dB
reference error = -0.013768 ppm, target error = 0.015200 ppm
Measured dist: -47.981821 target fitness: 2.057131 stddevs: 2.345854 target, 0.006248 reference
gold result: -49.049125
| correlation 4419 | 2019-04-21T00-19-48_102900000_pankrac | 2019-04-21T00-19-48_102900000_brmlab |
|---|
| 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 | 102900000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -2.593 stddev = 0.012 reference, 1.719 target [samples]; known correct: 0.877 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
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Correlator log
2019-04-21T00-19-48_102900000_pankrac <--> 2019-04-21T00-19-48_102900000_brmlab (pass 1)
reference error = 0.484281 ppm, target error = 0.006221 ppm
Measured dist: -4.949023 target fitness: 2.061881 stddevs: 4.324326 target, 0.131680 reference
gold result: 0.876883
2019-04-21T00-19-48_102900000_pankrac <--> 2019-04-21T00-19-48_102900000_brmlab (pass 2)
snr: 15.7 18.9 dB
reference error = 0.039626 ppm, target error = 0.066469 ppm
Measured dist: -2.593449 target fitness: 2.090557 stddevs: 1.718511 target, 0.011515 reference
gold result: 0.876883
| correlation 4420 | 2019-04-21T00-19-48_102900000_pankrac | 2019-04-21T00-19-48_102900000_brevnov |
|---|
| gain | [8, 8, 8, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref:  tgt:  |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 102900000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -60.276 stddev = 0.004 reference, 1.984 target [samples]; known correct: -58.566 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-19-48_102900000_pankrac <--> 2019-04-21T00-19-48_102900000_brevnov (pass 1)
reference error = -0.029608 ppm, target error = -0.019813 ppm
Measured dist: -60.325745 target fitness: 2.213913 stddevs: 2.004313 target, 0.009227 reference
gold result: -58.565514
2019-04-21T00-19-48_102900000_pankrac <--> 2019-04-21T00-19-48_102900000_brevnov (pass 2)
snr: 15.7 34.9 dB
reference error = 0.002263 ppm, target error = 0.000566 ppm
Measured dist: -60.275955 target fitness: 2.211181 stddevs: 1.983886 target, 0.004000 reference
gold result: -58.565514
| correlation 4421 | 2019-04-21T00-19-48_102900000_luna | 2019-04-21T00-19-48_102900000_brmlab |
|---|
| gain | [9, 9, 9, 1] | [5, 5, 5, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 102900000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | 45.206 stddev = 0.007 reference, 1.881 target [samples]; known correct: 49.926 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-19-48_102900000_luna <--> 2019-04-21T00-19-48_102900000_brmlab (pass 1)
reference error = 0.230022 ppm, target error = -0.001691 ppm
Measured dist: 45.563485 target fitness: 2.071191 stddevs: 2.623227 target, 0.062415 reference
gold result: 49.926007
2019-04-21T00-19-48_102900000_luna <--> 2019-04-21T00-19-48_102900000_brmlab (pass 2)
snr: 17.3 18.8 dB
reference error = -0.004875 ppm, target error = 0.047610 ppm
Measured dist: 45.206116 target fitness: 2.068058 stddevs: 1.880798 target, 0.007283 reference
gold result: 49.926007
| correlation 4422 | 2019-04-21T00-19-48_102900000_luna | 2019-04-21T00-19-48_102900000_brevnov |
|---|
| 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 | 102900000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -12.351 stddev = 0.010 reference, 0.929 target [samples]; known correct: -9.516 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-19-48_102900000_luna <--> 2019-04-21T00-19-48_102900000_brevnov (pass 1)
reference error = -0.294205 ppm, target error = 0.007916 ppm
Measured dist: -11.966872 target fitness: 2.030377 stddevs: 2.407864 target, 0.080529 reference
gold result: -9.516389
2019-04-21T00-19-48_102900000_luna <--> 2019-04-21T00-19-48_102900000_brevnov (pass 2)
snr: 17.3 34.9 dB
reference error = -0.026208 ppm, target error = 0.058626 ppm
Measured dist: -12.351499 target fitness: 2.032035 stddevs: 0.928763 target, 0.009521 reference
gold result: -9.516389
| correlation 4423 | 2019-04-21T00-19-48_102900000_brmlab | 2019-04-21T00-19-48_102900000_brevnov |
|---|
| gain | [5, 5, 5, 1] | [6, 6, 6, 1] |
| samplerate | 2250000 | 2250000 Hz |
| histogram | ref: tgt: | ref: tgt: |
| ref. spectrum |  |  |
| tgt. spectrum |  |  |
| tgt. filtered |  |  |
| target_freq | 102900000 Hz |
| reference | DAB Final Lic: VYSÍLACÍ SÍŤ A, PRAHA MESTO, 227360 kHz |
| result | -57.529 stddev = 0.005 reference, 1.500 target [samples]; known correct: -59.442 |
| Waterfall 1 | Correlation function | Waterfall 2 |
|---|
 |
|
 |
Correlator log
2019-04-21T00-19-48_102900000_brmlab <--> 2019-04-21T00-19-48_102900000_brevnov (pass 1)
reference error = -0.559382 ppm, target error = 0.011594 ppm
Measured dist: -55.540997 target fitness: 2.202331 stddevs: 4.307600 target, 0.152168 reference
gold result: -59.442397
2019-04-21T00-19-48_102900000_brmlab <--> 2019-04-21T00-19-48_102900000_brevnov (pass 2)
snr: 19.1 34.9 dB
reference error = 0.010168 ppm, target error = 0.004105 ppm
Measured dist: -57.529353 target fitness: 2.245643 stddevs: 1.499605 target, 0.004958 reference
gold result: -59.442397
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
