Comparison of sz phase coding and batch mode to mitigate range ambiguity of doppler weather radar

Range ambiguity is an inherent problem of Doppler weather radar, particularly serious for X-band Radar because its wavelength is short. Firstly, this paper presents the principle of using SZ phase coding and Batch mode to mitigate range ambiguity. Secondly, compares Batch mode and SZ phase coding algorithm from capabilities of clutter suppression, suitable elevation, scan time, complexity of computation, and uses echoes acquired from X-band Doppler weather radar compared their performance of range ambiguity mitigation. This paper first applies SZ phase coding to X-band dual polarization Doppler weather radar in China, and gets the following conclusions: compared to Batch mode, SZ phase coding produces a significantly smaller amount of range ambiguity, this algorithm also satisfies the request of real-time processing and can be used at any elevation.