lab3

This is matlab simulink svpwm model just copy and paste it in work and simulate.this is powerful modulation technique to reduce harmonics.the THD compared to other modulation techniques is also low .This technique includes analysis of sectors and determination of reference voltage vector and also angle calculation finally it is fed to two-level inverter

power_switching_power_supply_lib.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_switching_power_supply_lib.rar,Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

采用 Welch法在matlab中进行功率谱密度计算(Welch method using power spectral density calculation in matlab)

相移光栅的反射谱和折射谱仿真，光纤长度、调制强度、相移等参数均可调(Phase shift grating spectral reflection and refraction spectrum simulation, fiber length, intensity modulation, and other parameters can be adjusted for a phase shift)

说明：  可以实现一种也用m序列与walsh序列复合而成的复合序列的生成。(Can also realize an m sequence and walsh composite sequence from the generation of the composite sequence.)

带有三种媒介的周期性结构层的一维光子晶体特横磁场模带隙的平面波模拟(Three kinds of media with periodic structure layer of a special transverse-dimensional photonic crystal band gap of the magnetic field model simulation of the plane wave)

一阶预测器的设计,可以查看权重系数图和均方误差图。(Predictor of first-order design, weight coefficient can view maps and mean square error map.)

matlab code for jpeg2000 compression

经验模态分解的程序，由其他学者提供，使用方便高效。(emd programme)

mainMIMO_OFDMA_2Tx_Convcode.m: 主程序，设置各种参数 gendatabits.m: 生成原始信息比特数据的程序 conv_encoder.m: 卷积码编码器 interleave.m: 交织器 mod_2Tx_STBC_DFUSC_Convcode.m：调制程序 gen_SUI_CorrCIR.m: 生成信道冲击响应的程序 get_perfectCE_2x2.m: 生成理想信道估计值的程序 chanSUI_corr_2x2.m: 发送信号通过SUI信道的程序 addAWGN_2x2.m: 添加高斯白噪声的程序 dem_DFUSC_2x2_STBC.m: 接收端解调主程序 ls_freq.m: 频域LS算法 ls_time_2x2.m: 时域LS算法 iterative_detection_decoding_2x2.m: 级联MAP算法主程序 map_decoding.m: 卷积码MAP译码程序 b2s_logp.m: 符号LLR转化为比特LLR">