基于FPGA的多通道宽带数字频谱仪设计

Design the Multi-Channel Wideband Digital Spectrometer based on FPGA

为了进一步提高数据处理效率和满足射电天文后端设备发展与类似密集型数据处理的需求,文章给出了一种基于FPGA的多通道宽带数字频谱仪系统仿设计,具有16K通道数,2GHz的处理带宽,可以达到128kHz的频谱分辨率。主要介绍了频谱仪的设计思路,给出CAD设计方案、生成模型验证和仿真结果测试。

The FPGA based multi-channel wideband digital spectrometer was designed for the further improv-ing the efficiency of data processing and fulfilling the developmental needs on the radio astronomy back-endequipments and similar intensive data processing.The multi-channel wideband digital spectrometer designedhas 16 K multi-channel with the bandwidth of 2GHz generating a spectral resolution up to 128 kHz.We introducethe design frame,give the CAD design scheme and generate the model validation and the simulation results test.