GPS_SoftReceiver_MATLAB

移动通信天线建模编程matlab仿真代码 智能天线系统(Mobile communications antenna modeling program matlab code )

说明：  LD算法，实现信号的分析，频谱分析，避免矩阵的求逆运算(failed to translate)

fosim算法估计交通流拥堵通行能力大作业，提供数据，文献，matlab程序(fosim method of highway capacity evluation)

这是一个用matlab做的跳频文件，希望能给大家带来一点灵感(it is the matlab to realize the hopping function)

The This snisotropic diffusion tensor filtering package is a free (GPL) MATLAB program that implements the non linear 1D 2D and 3D image and signal processing algorithm. It features an easy-to-use user interface, and a computationally powerful algorithm.

实现拉朗日插值、线性插值、样条插值，用MATLAB计算两种二维插值的方法。(Implementation date lalang interpolation, linear interpolation, spline interpolation, calculated using MATLAB in two methods of two-dimensional interpolation.)

《MATLAB程序设计教程》源代码 很好用的。嘿嘿。( MATLAB Programming Guide, the source code very well used.嘿嘿.)

圆卷积与线卷积在FIR中的实现，通过程序还开深刻理解两者间的差别和各自优劣。 1.圆卷积用在被截出的某段数据中，此时，长度应该定为和输入数据长度一致（一般输入数据大于hn的数），这时圆卷积结果相当于某段被截断出来的数据以非截断的方式经过滤波而得出的结果；线卷积用在各自独立的，离散的数据中，若截断数据也用线性卷积来计算，那么就相当与这部分数据是与源数据是独立的， 得出的结果时域两端会变长，但频谱基本上一样的。差别可以想象。 2.注意圆卷积最开始的输入数据的次序，构造矩阵时要注意。(Circular convolution with the line convolution in the FIR implementation, the program also opened a deep understanding of the difference between the two and their respective pros and cons. A circular convolution with cut out a certain period of data At this point, the length should be set for the same length as the input data (typically input data greater than hn the number), when the circular convolution is equivalent to a certain the results of the truncated data to the non-truncated filtered line convolution with a separate, discrete data, truncated data with a linear convolution calculation, then the equivalent of this part of the data is independent of the source data, the results of both ends of the time domain becomes long, but the spectrum is basically the same. The difference can imagine. Note that the order of the circular convolution of the input data to construct matrix.)

说明：  网络函数逼近实例1.首先定义正弦函数，采样率为20Hz，频率为1Hz 2.生成BP网络。用newff函数生成前向型BP网络，设定隐层中神经元数目为10 3.对生成的网络进行仿真并做图显示。 4.训练。对网络进行训练，设定训练误差目标为 1e-5，最大迭代次数为300 5.再次对生成的网络进行仿真并做图显示。(Network function approximation example)

O-QPSK modulation and demodulation taking into account Multi-path Fading