高度的相关性分析DATAFROM S波段雷达天顶指向新加坡.pdfVIP

42 HEIGHT-CORRELATION ANALYSIS OF DATA FROM AN S-BAND ZENITH-POINTING RADAR IN SINGAPORE 1 1 2 2 3 3 M. Thurai *, V. N. Bringi , Y. H. Lee , L. S. Kumar , J. D. Eastment , and D. Ladd 1 Dept. of ECE, Colorado State University, Fort Collins, Colorado, USA 2 School of Engineering, Nanyang Technological University, Singapore 3 STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, UK 1, INTRODUCTION The radar uses a 3 m-diameter dish antenna equipped with a dual-polarization (horizontal and Information on height correlation of radar reflectivity vertical) feed. The antenna has a gain of 36.5 dBi, a (and rain rate) is useful for retrieving rain rates from 3- dB beamwidth of 2.3°, and an integrated cross- satellite radar measurements. Due to surface back polar isolation of around –25 dB. The transmitter uses scatter “leakage” into range gates close to the a magnetron of 600 kW peak output power, operating surface (range-time sidelobes), the retrieval at 3028 MHz. The radar operates at a PRF of 625 Hz algorithms need to extrapolate from aloft (around 2 with a pulse-length of 0.5 µs. The ADC bank samples km height) to surface level, or what is termed as co- and