Objective Questions on CW, FMCW, and Pulse Radar
Objective Questions on CW, FMCW, and Pulse Radar, MCQs on CW, FMCW, and Pulse Radar, MCQ on Continuous Wave Radar, MCQ on FMCW Radar, MCQ on Pulse Radar
- The Doppler frequency shift produced by a moving target may be used in a pulse radar to
- combine moving targets from desired stationary objects
- determine the relative velocity of a target
- separate desired moving targets from desired stationary objects
- determine the displacement of a target
Answer: determine the relative velocity of a target
2. To operate with unambiguous Doppler, pulse repetition frequency is usually
- low
- very low
- high
- very high
Answer: very high
3. Increasing the pulse width in a pulse radar
- increases resolution
- decreases resolution
- has no effect on resolution
- increases the power gain
Answer: decreases resolution
4. Which of the following is the biggest disadvantage of the CW radar?
- It does not give the target velocity.
- It does not give the target position.
- A transponder is required at the target.
- It does not give the target range.
Answer: It does not give the target range.
5. The Doppler effect is used in
- MTI
- pulse radar
- FM
- altimeter
Answer: altimeter
6. The major advantage of the pulsed radar compared with the CW radar is that
- the pulsed radar readily gives the range of the target, whereas the CW radar cannot give the range information
- the pulsed radar can identify a target more easily than can the CW radar
- pulses get reflected from the target more efficiently as compared with CW waves
- pulses have both variation of magnitude and frequency
Answer: the pulsed radar readily gives the range of the target, whereas the CW radar cannot give the range information
7. The minimum range of detection by the pulse radar depends on
- pulse width
- average transmitter power
- beam width of the antenna
- bandwidth of the antenna
Answer: pulse width