摘要
为了排除传统信号处理平台波形重构时功能中断,提出了一种基于FPGA动态可重配置技术的信号处理平台。平台采用DSP+FPGA+AD架构,对有限的芯片资源进行分时复用,使多个波形能同时在芯片级进行加载和重配置。同时提出最小均方算法(LMS)对AD数据进行校准,提高了信号处理平台AD采样精度和动态范围。经飞行验证,在100M系统采样速率下,该平台能够在2个动态区内实现多个功能的独立重构和加载,重建时间仅为1.3 s,经平台校准后的AD采样精度达到14.7 bit,满足了飞机在不同作战阶段对综合传感器系统任务可重构的需求,为航空机载信号处理平台提供了新的设计思路。
In order to solve the problem of function interruption in waveform reconstruction of traditional signal processing platform, an improved signal processing platform, which based on FPGA dynamic reconfiguration technology was proposed. The platform adopted the symmetrical architecture of DSP+FPGA+AD, which makes time-sharing multiplexing of limited FPGA on-chip resources, so that multiple function waveform can be loaded and reconfigured at the chip level at the same time. At the same time, the least mean square algorithm(LMS) was proposed to calibrate the ad data, which improves the AD sampling accuracy and dynamic range of the signal processing platform. Being verified by flight test, under the 100 m system sampling rate, the platform can realize independent reconstruction and loading of multiple functions in two dynamic areas, the reconstruction time is only 1.3 seconds, and the AD sampling accuracy calibrated by the platform reached 14.7 bits, which meets the re-configurable requirements of the aircraft for the mission of the integrated sensor system in different combat stages, and provided a new design idea for airborne signal processing platform.
作者
李声飞
LI Shengfei(The Tenth Research Institute of China Electronic Technology Group Corporation,Chengdu 610000,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2022年第10期274-279,共6页
Journal of Ordnance Equipment Engineering
基金
国家安全重大基础研究项目(***181)。
关键词
航空机载平台
综合射频传感器系统
动态配置技术
最小均方算法
任务重构
airborne platform
integrated RF sensor system
dynamic configuration technology
the least mean square algorithm
task reconfiguration
