论文标题
NASA D3R天气雷达系统的中间频率升级设计功能
Intermediate frequency Upgrade design features of NASA D3R Weather Radar System
论文作者
论文摘要
NASA双频，双偏度，多普勒雷达（D3R）是全球降水测量（GPM）任务双频降水雷达（DPR）的重要地面验证工具。 D3R从2011年开始进行了广泛的现场试验，并继续提供增强我们科学知识的观察结果。为了进一步增强其功能，已升级了中间频率（IF）电子，数字接收器和波形生成子系统。由于新的，更灵活的体系结构，此升级使更多的研究前沿能够以更好的性能进行探索。此升级的主要动机之一是使增强的雷达灵敏度并将范围分辨率提高到30米。在这项工作中，将讨论D3R系统升级，重点关注关键的升级设计功能，以获得更好的灵敏度和灵活的波形功能。
The NASA dual-frequency, dual-polarization, Doppler radar (D3R) is an important ground validation tool for the global precipitation measurement (GPM) mission dual-frequency precipitation radar (DPR). The D3R has undergone extensive field trials starting in 2011 and continues to provide observations that enhance our scientific knowledge. To further enhance its capabilities, the Intermediate frequency (IF) electronics, digital receiver and waveform generation subsystems have been upgraded. Due to the new, more flexible architecture, this upgrade enables more research frontiers to be explored with better performance. One of the primary motivations for this upgrade is to enable enhanced radar sensitivity and increase range resolution to 30 meters. In this work, the D3R system upgrade will be discussed with a focus on the key upgrade design features to obtain better sensitivity and a flexible waveform capability.
