MMSE beamforming method for polarimetric phased array weather radar

Hiroshi KIKUCHI; Takuro TASHIMA; Ting Wu; Kim Gwan; Tomoo USHIO; Hideto GOTO; Fumihiko MIZUTANI

Presentation information

Oral

Symbol M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS29] Atmospheric Electricity

Sun. May 24, 2015 11:00 AM - 12:45 PM A01 (APA HOTEL&RESORT TOKYO BAY MAKUHARI)

Convener:*Yasuhide Hobara(Graduate School of Information and Engineering Department of Communication Engineering and Informatics, The University of Electro-Communications), Tomoo Ushio(Information and communication engineering department, Osaka University), Chair:Tomoo Ushio(Information and communication engineering department, Osaka University)

11:00 AM - 11:15 AM

[MIS29-08] MMSE beamforming method for polarimetric phased array weather radar

*Hiroshi KIKUCHI¹, Takuro TASHIMA¹, Ting Wu¹, Kim Gwan¹, Tomoo USHIO¹, Hideto GOTO², Fumihiko MIZUTANI² (1.Osaka University, 2.TOSHIBA Co.,Ltd.)

Keywords:precipitation measurement, polarimetric radar, phased array radar, beamforming method

A polarimetric 2-D phased array radar, which consists of dual-polarized antenna with two-dimensional circular planar phase-array elements, capable of measuring the 3-D rainfall distribution in less than 20 seconds, is under development. We proposed minimum mean square error (MMSE) method for the under developing radar as digital beam forming (DBF) method, which is one of the important components to develop the phased array radar. In this presentation, precipitation radar signal simulations based on the developing radar concept are carried out. We discuss the estimation accuracy of polarimetric precipitation profiles (differential reflectivity, specific differential phase, and copolar correlation coefficient). From comparison of the performance of the conventional DBF methods, MMSE is superior because of the effect of adaptively suppressed side lobes.