摘要
针对遥感卫星接收系统中速率受限的问题,提出基于“模拟实现、数字补偿”的设计思想,利用模拟处理带宽大、处理速度快的特点,实现超高速信号的正交解调、匹配滤波等功能,同时利用数字处理对信号失真进行补偿;该架构综合利用了微波、FPGA、CPU和光总线等多种异构计算元素,具备互相配合、互补互通能力;经过工程验证,使用该处理架构可提升高速卫星数据接收系统的处理速率、硬件资源利用率和智能化水平。
For the problem of speed constraint in remote sensing satellite receiving system,the design idea is put forward based on“Analog Implementation and Digital Compensation”.The characteristics of wide bandwidth and fast speed of analog processing are used to implement the functions such as orthogonal demodulation and matched filtering of ultra-high speed signal.At the same time,digital processing is used to compensate the signal distortion.Using this processing architecture can enhance the processing speed,the utilization rate of hardware resources and the intelligence level of the high-speed satellite data receiving system.
作者
代金国
郝志松
赵文颖
李锋
赵运成
DAI Jinguo;HAO Zhisong;ZHAO Wenying;LI Feng;ZHAO Yuncheng(Unit 63778,PLA,Jiamusi 154002,China;The 54th Research Institute of CETC,Shijiazhuang 050081,China)
出处
《无线电工程》
北大核心
2021年第7期534-539,共6页
Radio Engineering
基金
国家自然科学基金资助项目(62001438)
河北省博士后择优资助项目(B2019003033)。
关键词
超高速
模拟实现
数字补偿
ultra-high speed
analog implementation
digital compensation
