I want to know how we determine in practice the RCS depending on the target shape and characteristics especially the case we this target is tracked the first time. I know that this parameter RCS is parameter that can help,the air controller to determine the target type (airfighter, transport aircraft, drone....).
Dear Abdelhakim,
Do you want to measure the RCS? or want to simulate the RCS?
Regards
Mohammad
Hi Abdelhakim,
complex, very complex problem! And particularly when you want to measure the RCS of complex targets such as an aircraft
The RCS is independant of the distance, and mainly depends on the radar frequency and intrinsic parameters of your target: size, dielectric properties of the material, surface roughness, etc. And it is dependant on the orientation of the target vs radar
So if you want to know the RCS of an aircraft, it is not a single value, because it depends on the orientation of the observation (typically two angles are used: azimuth and elevation)
Raphaël
1. To recognize target you need to measure RCS from almost all directions, alteast in azimuth.
2. There should be a precomputed library of target models that are required to be identified.
3. The radars usually switch to high-resolution mode to recognize the target, which means it is measurable at distance shorter than the surveillance range. Modern radars might have overcome this issue.
4. Last but not least stealth capability is being incorporated into every fighter aircraft and even drones. This means you either go bi-static or passive.
In monostatic, x band, you can used phisical optic theory, for others you shuld be use bi-static.
also consider shadow and et.
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