SER

描述了OFDM调制解调中的频率同步的算法的方法和相应的代码(Describe the method of frequency synchronization in OFDM modulation and demodulation algorithm and the corresponding code)

本matlab源代码功能是用有限元方法来解决在统一的横向压力下的薄板弯曲问题。(Bending of thin plate under uniform transverse pressure is solved using Finite Element Method)

4) 创建一个名为Complex的类，进行复数的算术运算。复数的形式为： realpart+imaginarypart*i 用浮点变量表示类的private数据。提供构造函数，能够对所声明的该类对象进行初始化。在不提供初始化值的情况下，该构造函数应包含默认值。针对以下功能，分别提供一个public成员函数。 （1）两个复数相加； （2）两个复数相减 （3）用（a, b）的形式打印复数，其中a为实部，b为虚部。 (4) Create a class called Complex, and perform complex arithmetic operations. Plural form: realpart+imaginarypart* i said private data class with floating point variables. Provide a constructor, the object can be declared for the class is initialized. In the case do not provide initialization values, the constructor should contain default values. For the following functions, which provide a public member function. (A) two complex numbers (2) the subtraction of two complex (3) (a, b) in the form of plural printing, where a is the real part, b is the imaginary part.)

设计了对于数字预失真的仿真程序，应用LMS急降方法实现系数更新，对失真有很好的效果(Designed for digital pre-distortion simulation program, the drop of the LMS coefficient update method implementation, have a good effect on the distortion)

说明：  如何对随机生成的矩阵进行QR分解和并利用QR分解解决最小二乘问题.(Use Householder reflector to compute the QR factorization of a randomly generated matrix and then solve the Least-Square problems.)

利用FDTD方法计算简单目标（如：方柱）的RCS，通过迭代求解，近远场外推，得到远区场的结果 (Using the FDTD method to calculate the RCS of simple objects(such as square column), through iterative solution, Near far field extrapolation to get the results of far field)

本文首先推导出过采样滤波器组精确重构的条件, 由于此时所需的约束条件数比临界采 样时少, 因而可以设计出频域衰减特性更好的滤波器组(This paper is derived through sampling filters of exact reconstruction of conditions, due to time constraints required for critical extraction ratio When a small sample, so you can design a better frequency filter attenuation characteristics)

此程序是应用四阶龙哥库塔公式来解方程的程序。(The program is the application of fourth order longge coulthard formula to solve the equation program. )

this word is a code for histogram equalisation to enhance quality of picture

this is a source code for localisation of number plate