wsn-codes

说明：  经典的有限元入门程序之truss，希望对你有用。(Introduction to classical finite element procedures truss, hope useful for you.)

通信信号数字调制识别源程序，包含六种常见的调制方式(Digital modulation recognition of communication signal source, contains six kinds of common modulation)

清华大学信号与系统经典教材 课件 非常好 我喜欢 是学习现代数字信号处理的经典教材(wofw woifew fwiojfkjshnv wf sf wifjs fwfjsl ggew wgjwgr gwogd ld vlsgj sdfjjw)

说明：  LDPC码编解码程序，LDPC，Matlab，VMSK(LDPC encoding and decoding procedures)

用esprit算法对波达方向（DOA）信号进行DOA估计的matlab程序。(DOA (DOA) signal DOA estimation algorithm matlab procedures used esprit.)

量子粒子群算法的源代码。程序中有数组和矩阵两种定义形式的源代码。(Quantum particle swarm algorithm source code. Program has two definitions in the form of a matrix array and the source code.)

Eigenvalues and eigenvectors of a normal matrix A.

用fdkmod函数画出采用4-FSK调制的0:3的调制信号波形，以及调制信号的频谱图(4-FSK modulation with fdkmod function draw 0:3 modulated signal waveform, and a modulation signal spectrum FIG.)

说明：  利用压缩包内的5和函数产生PPM调制的UWB信号，信号波形为高斯二阶导函数。重复编码次数，TH码长度范围，波形形成参数alpha等参数均可以改变(use compressed within the five functions to generate PPM and the UWB signal modulation, Waveform second derivative of the Gaussian function. Repeat code number, TH code length, alpha waveform parameters such as formation parameters can be changed)

本程序实现2维TM波FDTD仿真 此程序用PML设置吸收边界条件 FDTD_2D_PML 仅含有Ez,Hx,Hy分量 (The procedure to achieve 2-D TM wave FDTD simulation of this process with the PML absorbing boundary condition FDTD_2D_PML set contains only Ez, Hx, Hy component)