一种实用的风廓线仪信号处理机设计

Design of One Kind of Practical Signal Processing System for Wind Profiler

风廓线仪的晴空大气散射微弱,回波信噪比低,数据量大,需设计具有大容量处理能力的信号处理机。文中介绍了风廓线仪工作原理,以及信号处理分系统的软硬件设计。详细介绍了以TS201为运算核心的高性能信号处理硬件模块、基于PCI总线的硬件系统构成、软件原理和实现流程。该系统成功应用于P波段边界层(对流层)风廓线仪,已使用1年,系统稳定、可靠,设备状态良好。

Because of weak atmospheric scattering in clear sky, low SNR of echo, larger data flow of wind profiler, it is required to design a signal processor with large processing capability. This paper introduces the principle of the wind profiler and the hardware, software design of the signal processing system used in it. It describes TS201 DSP as the high performance of the signal processing module, the hardware based on PCI bus, flow chart of software in detail. The system has been used in a P band troposphere wind profiler very successfully for one year.