HeShiGongShi

数字基带系统将数字信号从时域上看时数字滚降，需要画出滚降前后的波形展示出来。频域上带宽变化了。输入滤波器之前的波形与采样判决之后的波形。采样判决前的频谱。 采样判决后的码型。 2、眼图（采样判决之前的眼图）（信噪比大眼图清晰） 3、误码曲线，（横坐标时信噪比，纵坐标时误码率） 4、Arfa变化对误码特性的影响，变好还是变差(变好)，眼图清晰度变化（清晰），传递函数的带宽的变化。（带宽越大）(1.Digital baseband system point of view the digital signal from the time domain when the number of roll-off, you need to draw the waveform displayed before and after the roll-out. The frequency domain, the bandwidth change. Input filter and sample ruling before the wave after wave. Sample pre-judgment spectrum. Sampling pattern after the verdict. 2, the eye diagram (eye before sampling decision) (SNR big eye clear) 3, the error curve (abscissa when the signal to noise ratio, bit error rate when the vertical axis) 4, Arfa impact of change on BER performance, get better or worse (getting better), change of eye-definition (clarity), the transfer function of the bandwidth changes. (The greater the bandwidth))

说明：  matlab有关遗传算法的源程序，并且内含有智能算法原理与应用的PPT.(matlab source of genetic algorithms, and the principles contained PPT intelligent algorithms and applications.)

说明：  判别分析法，matlab例程，可分析，可参考(Discriminant analysis, matlab routine, analyzable, referential)

自抗扰控制水箱 simulink 各种阶数(ADRC )

利用潮位数据计算理论深度基准面，其中各分潮系数需修改(Calculating theoretical depth datum using tidal data)

基于DD算法的先验信噪比估计的维纳语音降噪完整程序，包括语音分帧，动态信噪比估计,噪声估计更新和帧的重构。很完整。(DD algorithm based on a priori signal to noise ratio is estimated that the integrity of the process noise reduction Wiener voice, including voice sub-frame, dynamic signal to noise ratio estimation, noise estimation and frame reconstruction update. Complete. I hope to share together.谢谢. Small text.)

Digital filters and oscillators

LDPC码理论方面的高性能密度进化仿真测试例程，可以跑出数值结果(LDPC DENSITY EVOLUTION)

本程序在matlab中实现了灰度图像转换为RGB图像的过程，简单易于理解，有注释(This procedure in matlab to realize the gray image conversion for RGB image process, simple easy to understand, a comment )

matlab环境下高斯信道中采用BPSK调制的误码率仿真。(Matlab environment Gaussian channel BPSK modulation BER simulation)