p161_01

晚期瞬变电磁信号是大参数、 多频率、 且各频率分量未知的电磁信号， 特别在晚期还是强噪声背景下的微弱信号． 随机共振系统可以在极限信噪比的情况下提取微弱信号， 但仅适用于小参数、 单一频率或频率已知的高频信号的情况． 为此， 本文提出一种基于尺度变换的随机共振算法用于检测晚期瞬变电磁信号， 该方法充分利用了随机共振检测弱信号的优势， 通过引入尺度变换， 消除了随机共振系统对待测信号频率的限制， 在绝热近似理论下，实现了从强噪声中提取出微弱晚期瞬变电磁目标信号．(Transient Electromagnetic(TEM) signal is a large parameters, multi-frequency and unknown frequency with heavy noisy. Stochastic resonance (SR) can only be applied to small parameters, low-frequency or the known high-frequency signal detection. To solve this problem, a scale transformation for detecting TEM weak periodic signal of SR method is presented in this paper. The method is benefited from SR for detecting weak signals. )

在做结构分析的时候，我们往往会用到结构的刚度矩阵 但是由于计算量比较大，所以从ansys中提取是一个不错的办法。(n structural analysis, we often use the stiffness matrix of the structure, but because of the large amount of calculation, it is a good way to extract from ansys.)

AD9854允许输出的信号频率高达150MHZ，而数字调制输出频率可达100MHZ。通过内部高速比较器正弦波转换为方波输出，可用作方便的时钟发生器。(AD9854 allows the output signal frequency up to 150MHZ, and digital modulation output frequency up to 100MHZ. Through an internal high-speed comparator is converted to square wave sine wave output, the clock generator can be used as a convenience.)

线性CCD1209D datasheet(Linear CCD1209D datasheet)

校园书籍交换系统概要设计说明书，该设计目前只有设计思想，还未实现。(Campus book exchange system outline design specification, the design is currently only design ideas, not yet been realized.)

说明：  基本的飞蛾扑火算法，附带测试函数，亲测可以使用，欢迎大家下载(Basic moth algorithm with test function)

说明：  用遗传算法计算摄像机自标定参数，论文加上一个MATLAB程序，有详细说明(GA computer SelfCalibrtion paramters of picture，include a matlab program。。。)

该文档对于飞行程序进行了一些研究。能够体现目前飞行程序设计方面的主要编程技术(The documents are studied for flight program. To reflect the current major technology programming flight procedure design)

MIT-BIH_ECG_心电数据的下载和读取图解(MIT-BIH_ECG_user guide)

一年一度，秋招必备，包含数十道经典编程面试题(Review tricks including dozens of classic programming interview questions)