一种雷达信号处理系统新体系结构的设计

为了适应雷达信号处理大带宽的要求 ,现代雷达信号处理系统结构中广泛采用了基于开关的、点对点的互连结构。基于互连开关结构的信号处理系统具有可扩展性好、性能优越、成本较低的优点。由于采用低电压差分传输 ,在交叉开关之间的数据传输速率可以达到G比特 ,它成为今后先进雷达信号处理系统发展的方向。依据RapidIO互连协议规范 ,文中提出了基于多数字信号处理器和开关互连的雷达信号处理系统体系结构 ,并对其中的交叉开关模型及其性能进行了分析 ,最后对该信号处理系统的软件和硬件实现方法进行了讨论。

Design of a New Architecture of Radar Signal Processing System

In order to adapt to requirement of high bandwidth of radar signal processing, the interconnect mode based on the switches and point-to-point architecture has been widely used in radar signal processing system today. This kind of system that is based on the crossbar switch has a big advantage in expansibility, performance and lower cost etc. Because the low voltage differential signal transmitting technology is used, the data-transmitting rate among switches can achieve giga bits per second, this kind of architecture will be the trend of advanced radar signal processing system. According to the RapidIO specifications, a new architecture, which is based on multi-digital signal processors and crossbar switches, has been suggested. And the model of crossbar switch and its performance are analyzed. At last, the implementation of the software and hardware of this system is also discussed.