4. Over-the-horizon detection of low-altitude mobiles

4.1 General concept

The advantage of trans-horizon detection systems is that they enable low-altitude objects to be observed at very great distances. Conventional microwave radar solutions (microwaves radars) are unable to detect objects below the radar horizon, i.e. :

D_{km} = 4,1 \cdot \sqrt{Z_{m}}

For a ground radar, whose antenna is located between 10 and 30 m above the terrain, a distant radar horizon is 13 to 23 km. This, combined with the aerial gain profile and ground effect, results in very...

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Over-the-horizon detection of low-altitude mobiles

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Conclusion

Bibliography

(1) - BARTON (D.K.) - Radar system analysis. - Artech House.
(2) - BLANCHARD (Y.) - Le radar 1904-2004 – Histoire d'un siècle d'innovations techniques et opérationnelles. - Ellipses, Thales (2004).
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