What is the significance of signal-to-noise ratio (SNR) in Pulse Radar?

Signal-to-noise ratio (SNR) is a crucial factor in radar systems, including pulse radar, as it measures the level of a desired signal relative to the level of background noise. A higher SNR is important because it indicates that the desired signal stands out more clearly against the noise, leading to improved detection capabilities for targets. This means that when SNR is high, a radar system can more effectively discern between actual targets and unwanted interference caused by noise, which can originate from various sources.

This high SNR facilitates better performance in identifying and tracking targets, even those that might have relatively weak returns. In environments where noise levels are high, a strong SNR can prevent the radar from misinterpreting noise as legitimate targets, thus enhancing the overall accuracy and reliability of the radar assessment. Therefore, a higher SNR is pivotal in ensuring effective target detection in pulse radar operations.