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利用SIMULINK 来实现16QAM的仿真，并分析QAM的系统性能。(16QAM using SIMULINK to realize the simulation, and analysis of system performance QAM.)

滤波器设计示例：matlab设计IIR基本示例，matlab设计IIR高级示例，matlab窗函数设计FIR滤波器基本示例。(Filter Design Example: matlab basic sample design of IIR, matlab advanced example of IIR design, matlab window function, the basic design of FIR filter example.)

Random noise cancel.

清华大学张旭东老师《现代信号处理》课第二次大作业代码。高效正确地实现RLS算法。(This is an efficient and correct implementation of the RLS algorithm .This code is especially for the project of modern signal processing ,which is tought by Zhang Xudong in Tsinghua University.)

Matlab code for image read and write

说明：  对不稳定数据进行去趋势处理，得到平滑拟合曲线。(The unstable data were de trended to obtain a smooth fitting curve.)

用Matlab实现的IIR滤波器，已经通过编译和运行(Using Matlab realize the IIR filter, has been compiled and run through)

说明：  波束图定义为当阵列输入为平面波时，阵列输出与平面波入射角的关系。阵列天线的方向图是全方向的，但阵列的输出经过加权求和后，却可以使阵列接受的方向增益聚集在一个方向上，相当于形成一个波束，(The wave beam chart defines to work as when array input for plane wave, array output and plane wave incidence angle relations. Array antennas s directional diagram is entire direction, but array output after weighting summation, actually may cause the directive gain which the array accepts to gather in a direction, is equal in forms wave beam, )

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.

one machine - infinity bus simulink(one machine- infinity bus simulink)