test

We consider a complex-valued wavefield reconstruction in an object plane from data in a sensor plane. A digital modeling for the forward propagation is presented in the algebraic matrix form M-DDT. The inverse propagation is formalized as an inverse problem. The main algorithm of the complex-valued wavefield reconstruction with the proposed Matrix Discrete Diffraction Transform (M-DDT) is prepared as a Matlab demo.

说明：  IEEE官网上的关于UWB的源代码，由于信道仿真，对研究UWB室内定位的用户很有帮助(IEEE UWB official line on the source code, because channel simulation, the study of UWB indoor positioning the user helpful)

一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，计算误比特率。(First, the program uses 16QAM modulation, the source of a string of two binary modulation, with the Raised Cosine modulated baseband functions, and then transferred to high-frequency channel in the channel by adding Gaussian white noise, the use of matched filter demodulation, demodulation constellation plot using the minimum Euclidean distance decoding decision, bit error rate calculation.)

MAX+PLUSII不错的电子书,内容详细,易懂.(MAX PLUSII good e-books, detailed, understandable.)

说明：  卷积码编码译码Decoding convolutional coding(Decoding convolutional coding)

winner滤波器matlab代码实现，已测试(winner filter matlab code, has been tested)

The files are contained all knowledge!

Digital signal processing is the important aspect of modern communication system. here is the matlab code given which helps for the beginers for understanding the basics of DSP.

可以动态调节运行环境的参数，GSM中GMSK调制信号的产生，音频信号通过LM386放大。( Can dynamically adjust the parameters of the operating environment, GSM is GMSK modulation signal generation, LM386 audio signal amplification.)

编程语言的命名规范，有助于提高读取程序的能力。(Naming of programming languages, the ability to help improve reading programs.)