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欧拉角表示法具有简便、几何意义明显等优点，同时姿态敏感器可以直接测出这些参数，能较方便地求解用这些姿态参数描述的姿态动力学方程。但采用欧拉角的姿态描述方法存在奇点问题，且需多次三角运算。而采用四元数表示方法则可以避免这些问题。(conversion between euler angle and quaternion method)

数字信号处理第十章 FIR滤波器的设计 代码实现(Digital Signal Processing Chapter FIR filter design code)

对加速度传感器采集的加速度数据进行二次积分，得出位移数据，并在几分过程中进行积分基线的标定，较精确。(The acceleration of acceleration sensors to collect data, a second integral part of displacement data, and in the process of integration, the more precise the baseline calibration.)

embedded zero tree coding

独立成分分析（ICA）是最近开发的方法，它的目标是找到一种nongaussian等数据的线性表示 该元件是统计独立的或尽可能独立。应用包括信号特征提取与分离数据的基本结构。 在本文中，我们提出的基本理论和ICA的应用，以及我们对这个问题的近期工作。(Independent component analysis (ICA) is a recently developed method in which the goal is to find a linear representation of nongaussian data so that the components are statistically independent, or as independent as possible. Such a representation seems to capture the essential structure of the data in many applications, including feature extraction and signal separation. In this paper, we present the basic theory and applications of ICA, and our recent work on the subject)

两个轨道计算的子程序，四元素乘积计算法和空间轨道动力学方程递推的扩展卡尔曼滤波算法。(Calculation subroutine two tracks, the four elements of the product of calculation and orbital dynamics space equation recursive extended Kalman filter algorithm.)

MATLAB 阻抗计算例子1，很有参考价值。。(MATLAB impedance calculation example 1, a good reference. .)

实现OFDM信号调制解调全过程，里面加循环前缀去相关(OFDM signal modulation and demodulation of the entire process, which add cyclic prefix decorrelation)

学习matlab的资料，包含matlab的练习题和上机训练(Learn matlab materials, including Matlab exercises and computer training)

建立函数的最佳逼近程序，并且通过区间变换建立在任意区间的函数逼近(Establish the best approximation procedure of function, and establish the function approximation of arbitrary interval by interval transformation.)