Lesson-5

小波变换 ，平稳小波变换，对信号进行8层分解，对第4层处理(Wavelet transform)

Program for relay activation via parallel port

说明：  matlab 书籍源码matlab 书籍源码matlab 书籍源码(Source Books Source Books matlab matlab matlab source books)

实现深空轨道的仿真运行，而且精度很高，最后可以实现模块化功能，简单~(space exploration orbit design)

单相光伏并网发电系统电压前馈控制和有源频率偏移（AFD）孤岛检测法的simulink仿真模型，初步实现了并网电流与电网电压的同频同相，AFD孤岛检测方法采用S函数给出，检测功能基本实现。(Single-phase grid-connected PV system voltage feedforward control and active frequency offset (AFD) simulink simulation model islanding detection method, the initial realization of grid current and the grid voltage of the same frequency and phase, AFD islanding detection method using the S function to out detection realized.)

说明：  本代码用于matlab中数字信号得快速傅里叶变换及频谱分析(This code is used in matlab digital signal FFT and spectrum analysis)

说明：  该程序包括了ofdm和qam两种调制的matlab仿真程序，并对两种调制方式进行了对比分析并仿真。(the program includes two QAM OFDM modulation and the Matlab simulation program, and two modulation methods for comparative analysis and simulation.)

根据正弦波叠加法产生莱丝信道，其中参数设置仅供参考(Gaussian power spectrum)

SIMULATING THE LONG TERM EVOLUTION PHYSICAL LAYER

说明：  利用计算机仿真运算,将问题的求解过程转换成类似生物进化中的染色体基因的交叉、变异等过程。在求解较为复杂的组合优化问题时,相对一些常规的优化算法,通常能够较快地获得较好的优化结果。遗传算法已被人们广泛地应用于组合优化、机器学习、信号处理、自适应控制和人工生命等领域(Using computer simulation operations, the problem-solving process is transformed into a process similar to the crossover and mutation of chromosomal genes in biological evolution. When solving more complex combinatorial optimization problems, compared with some conventional optimization algorithms, better optimization results can usually be obtained faster. Genetic algorithm has been widely used in the fields of combinatorial optimization, machine learning, signal processing, adaptive control and artificial life)