mat

此例程为配套书籍的第六章例题7-19的相对应代码，功能为QPSK调制与解调，编程环境为matlab。(This routine supporting books Chapter Example 7-19 corresponding to the code for the function QPSK modulation and demodulation, programming environment Matlab.)

Data files are in Matlab format. Each file contains fan and drive end vibration data as well as motor rotational speed. For all files, the following item in the variable name indicates: DE - drive end accelerometer data FE - fan end accelerometer data BA - base accelerometer data time - time series data RPM- rpm during testing

matlab下实现降噪，功率谱计算。％程序中设定采样点数为256个，采样频率为10000hz， ％输入信号为随机噪声和两个正弦的合成信号 ％设定的滤波器的截止频率为3500hz ％通过挈比雪肤滤波器，运行程序，比较滤波前后的频域波形 ％滤波去除了高频信号(matlab achieve noise reduction, power spectrum calculation. Sampling procedure set for 256 points, the sampling frequency of 10000hz, input signal for the random noise and the two sinusoidal signals synthetic filter set a cut-off frequency 3500hz manner than through the filter雪肤, run procedures, compared before and after filtering in frequency domain waveforms filtering in addition to high-frequency signals)

Simple Math games foe blinds peoples

高精度地形数据处理，位错测量与回复，误差分析(High precision terrain data processing; Displacement measurement and recovery; Error analysis)

数值计算中的平滑算法，非线性滤波中使用。(Numerical calculation of the smoothing algorithm, the use of nonlinear filtering.)

雷达截面积————————矩形平板的后向散射RCS( backscatter RCS of Rectangular plate )

这是对图像进行增强处理，可以用MATLAB运行，需要的可以拿去参考(This is the image enhancement process, you can run with MATLAB, you can take the required reference)

说明：  DEA solver for windows 10 in matlab1

说明：  CA 和其改进 RELAX 算法的实现 对估计密集谱及弱频率成分有很好的效果( The implementation of CA and its improved algorithm RELAX have a good effect in estimating the intensity and weak spectrum of frequency components)