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| author | krakenrf <78108016+krakenrf@users.noreply.github.com> | 2022-10-15 10:40:25 +0200 |
|---|---|---|
| committer | krakenrf <78108016+krakenrf@users.noreply.github.com> | 2022-10-15 10:40:25 +0200 |
| commit | 488ff4d82b600d8a436e2f8cbd27bb5435963a7e (patch) | |
| tree | eed2f568ff9a94f19ff91334ab83b1f01dc7348f | |
| parent | Updated 08. Passive Radar (markdown) (diff) | |
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| -rw-r--r-- | 08.-Passive-Radar.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/08.-Passive-Radar.md b/08.-Passive-Radar.md index 0a1d47b..cb79d6a 100644 --- a/08.-Passive-Radar.md +++ b/08.-Passive-Radar.md @@ -119,9 +119,9 @@ In the future we aim to have software enhancements that make understanding and v  -The bistatic range displayed on the KrakenSDR range-doppler graph is described by the formula $Bistatic Range (meters) = R_b = Rtx + Rrx - L$. So you can see that a single reading on the range-doppler graph describes an ellipse of possible locations. +The bistatic range displayed on the KrakenSDR range-doppler graph is described by the formula $\mathrm{Bistatic Range (meters)} = R_b = R_tx + R_rx - L$. So you can see that a single reading on the range-doppler graph describes an ellipse of possible locations. # 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 $c / fs = 299 792 458 / 2400000 = ~125m$ resolution per range cell on the graph (assuming the illuminating signal is at least 2.4 MHz as well). +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.
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