This paper presents a new architecture for high-speed sustained data recording system, in which real-time and high throughput arc two key points. The FPGA implementation of the system controller is given as well. After the I/O bottleneck of conventional storage system structure is analyzed in this paper, a new recording and storage system framework is put forward by aiming to shorten the data transfer path and consequently to reduce the system resource utilization and data transfer latency, contrarily resulting in the improvement of the sustained data recording speed. To satisfy the real-time requirement, a local bus central logic controller module is designed to take the role of former host-side software and to reduce the utilization of host resource and latency caused by the intervention of the host. A speed-matching logic module between the disk in burst transfer mode and the sustained source acquisition data stream is also designed and implemented on a single FPGA chip. The proposed architecture and implementation approaches can be adapted in many applications where real-time and high I/O throughput are required.

飞机交流发电机是飞机电源系统中最重要的部件，其工作状态直接影响到飞行安全。在维护工作中，对发电机的输出信号进行异常检测，是发现发电机异常的常用手段，对及时排除故障隐患，保证飞行安全十分重要。本文借鉴计算机安全领域出现的人工免疫系统思想，采用欧氏距离在实数域进行匹配计算，实现了一种用于飞机交流发电机输出信号异常检测的负向选择算法。初步计算结果表明，该方法可有效检测出飞机交流发电机的输出异常。

衍射计算是设计光盘光学系统的基础。由于光盘信息符（坑点）尺寸可以和波长相比较或更小，标量衍射理论的有效性必需进行检验。首先分析了标量衍射理论的能量计算误差。对于典型的坑点尺寸，标量理论的能量计算误差高达19%。然后用耦合波理论分析了入射波偏振态的影响。计算表明TM 波和TE 波的衍射特性与标量理论的结论相差较大，TM波和TE波的衍射行为也有差别。这种差别是由电磁场边界条件引起的，且会随着坑宽的缩小而增大。对于DVD，标量理论的误差已经很大，要得到准确的结果就必须采用矢量衍射理论。