Chapter 3 - Radar Receivers Flashcards
1
Q
What are the principle requirements of a radar receiver?
A
Good SNR
High Gain
EPM
Sufficient dynamic range
Sufficient beam width
MTI / PD
2
Q
Draw generic radar receiver and pulse train
A
3
Q
Explain how bandwidth affects the shape of our radar pulse and what effect this has on performance
A
Determines rise time and pulse duration.
A high bandwidth will give a short sharp pulse which will improve radar resolution and shorten minimum range.
4
Q
Explain difference between linear and log amps.
A
Linear
- Constant gain
- Saturation level that can affect video signal
- Helps to give max detection ranges in good weather conditions
- 1mv = 2v
Log
- output amplitude is proportional to log of input signal
- 100 mw = 2v
