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Questions and Answers
What happens to electromagnetic waves when incident on a target?
What happens to electromagnetic waves when incident on a target?
- They pass through the target
- They change their frequency
- They are absorbed by the target
- They are diffracted or scattered in all directions (correct)
What are the two parts into which the scattered waves are broken down?
What are the two parts into which the scattered waves are broken down?
- Waves with vertical polarization and waves with horizontal polarization
- Waves with positive amplitude and waves with negative amplitude
- Waves with the same polarization as the receiving antenna and waves with different polarization (correct)
- Waves with high frequency and waves with low frequency
What is the Principal Polarization (PP) in radar cross section (RCS)?
What is the Principal Polarization (PP) in radar cross section (RCS)?
- The incident electromagnetic waves
- The total scattered energy
- The waves with different polarization to the receiving antenna
- The waves with the same polarization as the receiving antenna (correct)
What is the target RCS defined as?
What is the target RCS defined as?
What happens when a target is illuminated by RF energy?
What happens when a target is illuminated by RF energy?
What is the target RCS defined as?
What is the target RCS defined as?
What are the two polarizations referred to in radar cross section (RCS)?
What are the two polarizations referred to in radar cross section (RCS)?
What happens to the scattered waves with different polarization than the radar’s receiving antenna?
What happens to the scattered waves with different polarization than the radar’s receiving antenna?
What type of wavefronts are decomposed into a linear combination of plane waves in the far field?
What type of wavefronts are decomposed into a linear combination of plane waves in the far field?
What does a target act like when illuminated by RF energy?
What does a target act like when illuminated by RF energy?
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