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实现SC-FDMA系统的性能仿真，即单载波OFDM(realize SC-FDMA system，for example SC-OFDM)

线性调频信号是一种雷达常用的电磁波信号，当雷达信号检测到目标时候，反射后得到雷达回波信号，此时由于多普勒效应，信号的频率发生偏移，这个源码仿真出雷达检测到目标加速度信息的回波信号。(LFM signal is a commonly used electromagnetic radar signal, when the radar signal detection to the target time, after reflection of radar echo signal, at this time due to Doppler effect, the signal)

说明：  两个关于数值分析的matlab演示，十分有用(2 on Numerical Analysis matlab demo, very useful)

Zernike Polynomial Coefficients for a given Wavefront using Matrix Inversion in Matlab

可以用一系列点拟合二次函数，得出拟合后的图形和原数据的图标(Two functions can be fitted with a series of points)

可以实现二进9/7小波提升格式的小波变换，希望对大家学习和研究提升小波变换有帮助。(can achieve two into 9/7 wavelet upgrade format wavelet transform, we hope to enhance learning and research help wavelet transform.)

超宽带5阶高斯脉冲发射波形经BPSK调制后系统性能(5-order Gaussian pulse UWB emission waveform modulated by the BPSK system performance)

改程序是经典的模态识别程序，基本包括了所有的模态识别方法，包括prony法、era发、频域分析法，还具有有限元分析等功能，对模态分析特别有帮助。(Reform program is the classic modal identification procedures, including all of the basic modal identification methods, including prony law, era hair, frequency domain analysis, also has features such as finite element analysis, modal analysis of particularly helpful.)

this is a well data number 1 for RPH sample, stored in las format

提取人体运动步态特正，采用BP神经网络进行步态分类识别。(BP network for gait recognition)