Topic: Radar and Navigation
Which factor determines the range resolution of a radar?
- A. Size of the antenna
- B. Bandwidth of the transmitted pulse
- C. Power radiated form the antenna
- D. Centre frequency of the radar
Answer: B. Bandwidth of the transmitted pulse
Explanation: The theoretical range resolution is given by $S_r = \frac{C_0 \cdot \tau}{2}$, where $\tau$ is the pulse width. Since pulse width is inversely proportional to bandwidth, the bandwidth of the transmitted pulse is the primary factor that determines the range resolution.