From 3ec123f666ececc47677a3d4e64fffc7753509aa Mon Sep 17 00:00:00 2001 From: krakenrf <78108016+krakenrf@users.noreply.github.com> Date: Sun, 16 Oct 2022 00:28:44 +1300 Subject: Updated 08. Passive Radar (markdown) --- 08.-Passive-Radar.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/08.-Passive-Radar.md b/08.-Passive-Radar.md index 8490c46..3a519ec 100644 --- a/08.-Passive-Radar.md +++ b/08.-Passive-Radar.md @@ -123,6 +123,9 @@ The bistatic range displayed on the KrakenSDR range-doppler graph is described b For drawing an ellipse we can then use the equation $2a = R_b + L = R_{tx} + R_{rx}$ +![image](https://user-images.githubusercontent.com/78108016/195984068-c5a851a8-7135-49c4-88a0-e67a750d519b.png) +(Image credit: https://www.mathworks.com/help/fusion/ug/track-using-bistatic-range-detections.html) + # 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). -- cgit v1.2.3