摘要
机载多普勒雷达回波正交两路信号数据量大,传输速率高。机载环境复杂并且如果发生空难,存储设备跌落将经受高冲击作用,壳体极易变形使内部电路损坏,导致所记录数据丢失。传统总线式控制数据记录仪存储容量小,传输速率慢,无法承受跌落冲击。针对这些问题,设计了基于硬件控制的双通道雷达回波存储系统,可以存储两路共128 GB数据,存储速率可达160 MB/s,并提出合理的机械结构设计,进行两级缓冲防护。实验结果表明,系统在高冲击恶劣环境下数据可以有效回读。
Airborne Doppler radar echo orthogonal two- way signal data is large and the transmission rate is high. The airborne environment is complex and if there is a crash, the storage device will be subjected to a high impact, and the shell is very easy to deform and the data will loss. The traditional bus type control data recorder is of small storage capacity, slow transmission rate,and can not afford to drop impact. To solve these problems, this paper designs a dual channel radar echo storage system based on hardware control. It can store two channels of 128 GB data. The storage rate can reach 160 MB/s, and a reasonable mechanical structure design is proposed. The two level buffer protection is designed. The experimental results show that the system can be effectively used to read the data under high impact and bad environment.
出处
《电子技术应用》
北大核心
2016年第4期78-80,84,共4页
Application of Electronic Technique
关键词
雷达回波
高速大容量
FPGA
抗冲击
radar echo
high speed and large capacity
FPGA
impact resistance
作者简介
范国浩（1991-），通信作者，男，硕士研究生，主要研究方向：动态测试与智能仪器、恶劣环境下的动态存储测试等，E—mail：18434367851@163．com．
张艳兵（1977-），男，博士研究生，副教授，主要研究方向：动态测试与智能仪器，计算机控制等。
李新娥（1971-），女，博士，教授，主要研究方向：动态测试与传感技术。
