What is SZ-2 Phase Coding used for in radar?

SZ-2 Phase Coding is primarily utilized for dealiasing radar data with unique pulse tagging. This technique involves modifying the radar pulse to help distinguish between returns from various range bins, particularly in cases where there is a risk of aliasing due to high-speed targets or rapid movement, such as precipitation. By encoding each transmitted pulse with a unique phase, the radar can better differentiate between closely spaced echoes that may appear to overlap in the received signal.

This method enhances the radar's capability to accurately assess the motion of precipitation, thus providing clearer and more reliable data. The improved separation of returns helps mitigate the effects of aliasing, which can lead to significant errors in wind speed and direction calculations.

While other options may relate to radar functionality, they do not directly explain the specific role of SZ-2 Phase Coding, which focuses on the unique tagging of pulses to solve the problem of overlapping data.