experiment2

生成正弦波，不需要调用sin函数，利用的查表法(Generate a sine wave, you do not need to call the sin function using table look-up method)

说明：  是《信号与系统》第一章信号运算的实验内容，有详细的代码和实验原理(Is the &quot Signals and Systems&quot Chapter signal computing experiment content, code and test a detailed theory)

现代通信系统（实用MATLAB)第五章程序(Modern communication systems (useful MATLAB) Chapter V procedures)

说明：  该程序是用matlab语言实现无线通信领域ofdm的描述，读者可以一试(that the procedure was used Matlab language OFDM wireless communications description, the reader can be a trial)

电动汽车动力性，爬坡性，续驶里程等性能仿真(The electric car performance simulation )

forward and backward search

wav file to vector converter

The statements below guide us to write the code for the transmission of sensed data to a sink node using cognitive radios in multiple spectrum bands. In doing this we are trying to find the most appropriate modulation scheme using MATLAB simulation.

fft2-antropy-convolve -covariance

近似熵是一种衡量衡量非线性时间序列复杂性的非线性动力学分析方法，其物理意义 为熵值越大，时间序列的自我相似性越低，序 列越复杂，反之序列自我相似性越高；并且样 本熵对于序列长度依赖弱，仅需较短的数据就 能够得到稳健的熵值，同时其计算不需对数据 粗粒化，具有较好的抗干扰能力 (Approximate entropy is a measure to measure the complex nonlinear dynamics of nonlinear time series analysis method, the physical meaning of entropy value is larger, the lower the self-similarity of the time series, the more complex the sequence, whereas sequence of self-similarity the higher and the sample entropy weak dependence for the length of the sequence, only shorter data can be healthy entropy value, calculated without data coarse-grained, with good anti-jamming capability)