If a signal x(t) is processed through a system to obtain the signal (x(t)2), then the system is said to be ____________
- Linear
- Non-linear
- Exponential
Which of the following block is not required in digital processing of a RADAR signal?
- A/D converter
- D/A converter
- DSP
What is the physical device that performs an operation on the signal?
- Signal source
- System
- Medium