Todorovic

说明：  用牛顿插值法对离散点进行差值，如果在原来的基础上增加一个点，用该种插值法速度很快，效率高(Using Newton)

DQM法matlab代码，用于求解输液管道的失稳问题，在边界弹簧刚度变化的情况下，给出了临界失稳流速。(DQM method matlab code for solving the instability problem pipes conveying fluid, the spring stiffness in the border cases, given the critical buckling velocity.)

基于matlab的条件平差，实现测绘计算工作的简化(Adjustment based on the conditions of matlab)

LSB算法，将二值（0，1）图像嵌入到指定图像（256*256）中，从第一位到第八位。(LSB algorithm, the two values (0,1) image is embedded to the specified image (256* 256), from first to eighth.)

In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.

MATLAB环境下的Simulink仿真平台，构建PCM编码与解码电路图，对模拟信号进行采样、量化、编码, 将编码后的信号输入信道再进行PCM解码，还原出原信号.建立仿真模型,分析仿真波形。(MATLAB environment Simulink simulation platform to build PCM encoding and decoding circuit diagram of the analog signal is sampled, quantization, encoding, the encoded signal input letter Road and then the PCM decoding, restore the original signal. Establish simulation model, analyze simulation waveforms.)

粒子群优化算法（PSO）应用于神经网络优化程序。分为无隐含层、一隐含层、二隐含层。运行DemoTrainPSO.m即可(Particle Swarm Optimization (PSO) used neural network optimization program. Divided into no hidden layer, a hidden layer, two hidden layers. You can run DemoTrainPSO.m)

正交频分复用的16QAM的详细发送程序，值得收藏(Orthogonal Frequency Division Multiplexing 16QAM sending )

voie recording codes

使用Matlab做出的基本调制方式的误码率曲线(Analysis of the symbol error probability for Basic Modulations )