GPSsignal-modeling-and-simulation

将随机数字信号进行16-QASK调制，使用升余弦滤波器模拟具有噪声的信道，绘制眼图，并采用眼图寻找最佳判决时间(The random 16-QASK digital signal modulation, the use of raised cosine filter simulation of the channel noise and draw the eye diagram, using the eye diagram to find the best judgments of time)

霍夫曼编码，随机生成10个概率，和为1，用霍夫曼编码输出，采用map函数(Huffman coding, the probability of a randomly generated 10, and 1, with the Huffman code output, the use of map functions)

matlab读取1979-2009年尼诺3指数并画出随年份变化的曲线的程序(Matlab read 1979-2009 nino 3 index and draw the curve of the change of the year with the program )

Extended Kalman Filter Tracking Object in 3-D(Assume that we want to track an object moving in 3-D space with constant velocity. Our instruments observe bearing, range and high(cylindrical coordinates). However, of an interest are rectangular coordinates. Since transformation is non-linear this requires use of extended Kalman filter. Because transformation is non-linear between X,Y and Range,Bearing and linear between Z and high(Z is height), this problems serves as a good comparason of how well extended Kalman filter can perform. By comparing its linear estimation error in Z to non-linear estimations in X and Y, we can judge how non-familiarities effect estimation. )

Burg算法AR谱估计发生谱线分裂现象的仿真验证(Burg algorithm for AR spectral estimation spectral splitting phenomenon in the simulation)

求一元二次方程ax2 +bx+c=0的根(Find a quadratic equation ax2+ bx+ c = 0 root)

自适应滤波器的原理和最小均方(LMS)算法，利用MATLAB实现了自适应系统辨 识和自适应干扰抵消(the theory of Adaptive Filter and LMS(1east mean square)algorithm． Meanwhile，it manages to use MATLAB to realize the adaptive system identifier and interference cancella— tion．)

直角坐标形式的牛顿——拉夫逊法连续潮流程序源代码(Rectangular form of Newton- Raphson continuation power flow program source code)

Lax Wendroff method for Pulse propagation

SIMULINK初级教程，入门必备。AM调制器的设计，低通滤波器，AM相干解调仿真(SIMULINK primer, entry necessary. AM modulator design, low-pass filter, AM Coherent demodulation simulation)