What kind of information can be extracted from the return signal of a Pulse Radar?

The return signal of a Pulse Radar provides crucial information about targets in its detection range. By analyzing the time it takes for the radar pulse to return, the distance to the target can be calculated. This is known as range measurement and is fundamental to radar operation. Additionally, the frequency of the return signal can be utilized to determine the speed of the target through the Doppler effect; a change in frequency indicates movement towards or away from the radar source.

Moreover, the characteristics of the returned signal, such as its strength and shape, can provide insights into the size and shape of the target. A larger object typically reflects a stronger signal, whereas the shape can be inferred from the signal's waveform upon return. This multifaceted data allows the radar to construct a detailed profile of the target, making it a powerful tool for various applications, including surveillance and navigation.

In contrast, other options presented do not align with the capabilities of a Pulse Radar. Temperature and humidity levels are typically measured by meteorological instruments, not radar systems. Visual data is generally obtained through optical imaging technologies rather than radar, which relies on radio waves. Audio frequencies pertain to sound waves and are completely outside the scope of what radar systems are designed to analyze.