DS-CDMA

QPSK modulation in matlab

根据FSK调制原理 在二进制频移键控中，幅度恒定不变的载波信号的频率随着输入码流的变化而切换（称为高音和低音，代表二进制的1和0）。来做实验 (According to the principle of FSK modulation in the binary frequency shift keying, the frequency of the carrier signal amplitude constant with the change of the input stream is switched (called treble and bass, representing a binary 1 and 0). Trequinsin)

详细讲述了直接序列扩频差分锁相环的文章，包含具体的算法结构，并附有仿真结果。(A novel differentially coherent delay-locked loop(DCDLL) for accurate code tracking is proposed for direct sequence spread spectrum systems. Due to the use of the differential decoder and exactly one correlator, the proposed scheme avoids the problems of gain imbalance. The tracking error variance is derived by linear analysis. When the proposed DCDLL scheme is applied in ranging with additive white Gaussian noise (AWGN) channel, the performance of the proposed DCDLL scheme is about 1.4 dB better than that of one-correlator tau–dither loop (TDL), and near that of noncoherent DLL.)

初学matlab的教程，比较全面，比较实用，此部分为第三部分。(Matlab beginner tutorial, more comprehensive, more practical, this part of the third section.)

电力线资源的仿真和实现，在matlab编程语言环境下对电力线进行了深入的研究，是一份不可或缺的好资料(the book is talk about electric and how to using electric this is a very good book)

通信实验指导：哈夫曼编码的matlab实现，有源码和详细文档(Communication experiment guide: Huffman coding matlab to achieve, there are source code and detailed documentation)

下行信道加扰源码,matlab编写,方便对通信模型的仿真和学习(Downstream channel scrambling codes, matlab prepared to facilitate the simulation model for communication and learning)

用于使用matlab语言进行的正交振幅调制及系统仿真．(For the use of language matlab QAM and system simulation.)

宽带无线通信系统中资源分配中的功率注水算法(power waterfilling algorithm)

小波包频带能量分解在断路器机械状态监测中的应用(xiaobobao energy fenjie zhaungtaijiance)