unified1

预处理共轭梯度的方法,该方法有效，快速！！(preconditioned conjugate gradient（PCG）)

拉格朗日插值，本程序用拉格朗日插值公式对一元不等距观测数据进行程组插值 (Lagrange interpolation)

说明：  连续隐马尔可夫模型cdhmm,多用于语音识别中，在文本相关的语音识别中，识别效果很好。(cdhmm)

说明：  2013数学建模研究生B题建立多项式模型代码(2013 graduate of mathematical modeling to establish polynomial model code B title)

KALMAN滤波与平滑原理及matlab经典源码，内附滤波平滑处理结果图形，比较适合初学(KALMAN filtering theory and matlab classic source, more suitable for beginners)

Clark变换与Inv_Clark变换，引入输入信号进过测试能够实现功能(Clark and Inv_Clark)

四旋翼无人机的PID高度控制matlab仿真(Four-rotor UAV simulation matlab height control)

find the center of gravity of speech singal.

用实验方法测试RLC串联谐振电路的幅频特性曲线。当正弦交流信号的频率f改变时，电路的感抗、容抗随之而变.取电路电压U0作为响应，当输入电压Ui幅值维持不变时，在不同信号频率的激励下，测出U0之值，用LabVIEW程序完成频谱分析和滤波，变换等信号处理，即可测出RLC串联电路的谐振频率，(Amplitude-frequency characteristics experimentally tested RLC series resonant circuit curve. When changing the frequency f of the sinusoidal AC signal, the circuit inductance, capacitance change with Take circuit voltage U0 as a response when the amplitude of the input voltage Ui unchanged, signals at different excitation frequencies, the measured value U0, the process is complete spectrum analysis using LabVIEW and filtering, transform signal processing, can be measured RLC series circuit resonant frequency,)

该算法实现效果很好，可用于图像处理方面等等。(The algorithm works well, can be used for image processing and so on.)