A solid-state 94 GHz FMCW Doppler radar demonstrator for cloud profiling

被引：0

作者：

Robertson, Duncan A. ^{[1
]}

Hunter, Robert I. ^{[1
]}

机构：

[1] Univ St Andrews, SUPA Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

来源：

RADAR SENSOR TECHNOLOGY XXI | 2017年 / 10188卷

基金：

英国工程与自然科学研究理事会;

关键词：

Radar; FMCW Doppler; millimeter wave; coherent; cloud profiling; Fresnel zone plate; DDS;

D O I：

10.1117/12.2261871

中图分类号：

TB8 [摄影技术];

学科分类号：

0804 ;

摘要：

We present the design and characterization of a ground-based, zenith-pointing, 94 GHz FMCW Doppler radar demonstrator for cloud profiling. The radar uses an all solid-state and relatively simple homodyne architecture and two, low sidelobe 0.5 m diameter Fresnel zone plate antennas to reduce system costs. The low-phase noise, coherent radar employs a direct digital synthesis (DDS) chip for highly linear chirp generation. The design will be able to leverage ongoing future improvements in mm-wave low noise and power amplifier technology to maximize sensitivity. Once the radar is installed in a rooftop location, the processor will perform real-time range-Doppler measurements with averaging, to yield target velocity spectra as a function of altitude.

引用

页数：7