What is the main function of the sum receiver in the radar system?

The main function of the sum receiver in a radar system is to provide a single output for processing. This component takes various incoming signals, often from multiple receiving elements or channels, and combines them into one coherent signal that represents the information gathered by the radar. This merging process is crucial because it allows the radar processing system to simplify data handling, increase signal-to-noise ratio, and improve overall detection and accuracy of the radar system.

By generating a unified output, the sum receiver facilitates a more efficient analysis of the received data, enabling radar operators to make informed decisions quickly. In practical terms, this means that rather than dealing with multiple individual signals that could complicate interpretation, the operator or processing system works with a single, enhanced signal that contains the most relevant information.

In contrast, other functions mentioned, such as differentiating between signal types or measuring elevation angles, are specific tasks that might be handled by different components in the radar system, reflecting different aspects of radar operations that are separate from the aggregating function of the sum receiver.