新一代天气雷达标准化信号处理器设计与应用
The Design and Applications of a Standardized Signal Processors in the New Generation of Weather Radar
中文摘要：
为了解决新一代天气雷达信号处理算法升级和双线偏振升级的问题，研制了标准化信号处理系统。设计中采用了软件无线电体系设计思路，把信号处理按照处理的不同对象划分，划分后将不同类别的处理功能封装到不同平台上，由信号处理器和计算机软件分别处理。这种设计架构具有开放灵活、可继承移植、升级快捷等特点，在此系统平台上研发的信号处理算法程序，能够快速地将国内外最先进的天气雷达信号处理研究成果转化成应用，并扩展到各种型号的天气雷达系统中；同时，在硬件设计上，信号处理器性能优异，支持天气雷达双线偏振升级，具有标准化特性，通过更换此模块能解决历史上使用过的各型号各版本信号处理器的技术差异问题。应用本系统后的天气雷达，观测天气目标的准确性和全面性都大幅提高。
中文关键词：
天气雷达，软件无线电，信号处理，模数转换
KeyWords：
weather radar, software radio, signal processing, ADC.
Abstract：
In order to solve the problem of the signal processing algorithm upgrade and the dual polarization upgrade in the new generation of weather radar, a standardized signal processing system is developed in this paper. Adopted the idea of designing the software radio system, we divide the signal processing in accordance with the processing of different objects, then the divided categories of processing functions are capsulated into different platforms, and let the signal processor and the computer software to process signals respectively. This design architecture is open and flexible, inheritable transplantation and upgrade quickly. The signal processing algorithm procedures on this system platform can make the achievements of the most advanced weather radar signal processing at home and abroad to be transfer to applications quickly and can be expanded to all kinds of weather radar system as well. Meanwhile, on the hardware design, the signal processor has a good performance to support the double polarization weather radar upgrades, to have the standardized characteristics. By changing the module, it can solve the technological differences of signal processor in the used versions of various sizes in the history. With applying the weather radar of this system, the accuracy and comprehensiveness of weather targets are greatly improved in the observation.