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| author | krakenrf <78108016+krakenrf@users.noreply.github.com> | 2022-10-15 10:46:37 +0200 |
|---|---|---|
| committer | krakenrf <78108016+krakenrf@users.noreply.github.com> | 2022-10-15 10:46:37 +0200 |
| commit | f30690a8f24f0b1dbecd25614d2566d5ddc376a8 (patch) | |
| tree | 6c91d9ad217d4c166af88d92ab4aa82a2c5ea361 | |
| parent | Updated 08. Passive Radar (markdown) (diff) | |
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| -rw-r--r-- | 08.-Passive-Radar.md | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/08.-Passive-Radar.md b/08.-Passive-Radar.md index 10189c6..c092866 100644 --- a/08.-Passive-Radar.md +++ b/08.-Passive-Radar.md @@ -124,4 +124,6 @@ The bistatic range displayed on the KrakenSDR range-doppler graph is described b # Range Resolution Range resolution depends on the sampling bandwidth, which for the KrakenSDR and RTL-SDR tuners inside is 2.4 MHz. Therefore we achieve $\frac{c}{fs} = \frac{299792458}{2400000} = ~125m$ resolution per range cell on the graph (assuming the illuminating signal is at least 2.4 MHz as well). -This means that we can differentiate between two different objects that are 125m apart.
\ No newline at end of file +This means that we can differentiate between two different objects that are 125m apart. Or in other words, two objects closer than 125m apart will be combined into a single range cell. + +Another example, if we are using a DAB transmitter as the illuminator, then we only have 1.5 MHz of bandwidth. Therefore we achieve $\frac{c}{fs} = \frac{299792458}{1500000} = ~200m$ resolution per range cell.
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