Question

4. [Radarl (10 pts) Identify which object from the followingngle ngine ac table is detected at a range of 3-km Four passenger jet e Large fighter giving a return of 0.54nW with t following system working at 3GHz: 40 100 Medium jet airliner Jumbo jet Helicopter 0.02 Small open boat Small pleasure boat (20-30 t Cabin cruiser (40-50 Ship(5,000 tons displacement, L Band Transmitted Power kW Antenna efficiency | 98% 10 10,000 30dBAutomobile / Small truck Bicycle 100-200 Man 104-10 Birds Insects

Answer 1

4. Radar a ttar 2 4 er CroSS fo ว radar Cross sedioni. in Sware meters cbeck s mini mum deectable n or m °

G=ED E → Arlenn a G4te..ncy s = log (D) D= 1000 eraqi ne aircra 3 9 404934.049 404 9 knn 421554.0118 m 4 81.5 Km

3) Large Liabter 2. 2 = 633子60.1312 633구6km el aar o1.3 km ιδ9 er 5329 2 구 . 12チ 532-9 2 km

52- 28Okm Sim the

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