一种高速实时数字波束形成器的设计

Design of High Speed and Real-time Digital Beam-forming Processor

在数字波束形成系统(DBF)中,高速数据传输和数字波束形成均需保证其实时性,因而它一直以来都是DBF系统的关键技术。在此详细阐述采用低压差分信号(LVDS)技术解决DBF系统高速数据传输问题,LVDS与普通的并行数据总线相比,既能确保数据传输速率,又降低了总线的互连复杂度;同时选择高性能FPGA芯片,既完成多通道高速数据的复加权求和运算,又实现了全阵的实时数字波束形成运算。

In DBF,the reality of high speed data transmission and DBF is needed.it is a key technique in DBF.A technique of low differential signaling is proposed for transmitting high speed data.It uses high-performance FPGA chipset as a chief processor,which helps on the complex multiplication and the complex addition of the high speed data,streaming from multi-channels.The implementation of high-speed beam-forming calculation in real-time is carried out.It proves that the implementation fulfills all the requirement in real - time.