step-frequency-phase

to subtract background

说明：  这是一个用FDTD算法计算二维金属方柱散射场RCS的matlab程序.采用UPML吸收边界条件和高斯脉冲源激励,对于学习FDTD方法中的激励源加入,近-远场外推,吸收边界设置等很有帮助 (This is a two-dimensional metal with the FDTD algorithm to calculate the scattering RCS of a square cylinder matlab program. UPML absorbing boundary conditions and using the Gaussian pulse source excitation, FDTD methods for studying excitation source added, near- far field extrapolation, absorbing boundary settings, and helpful)

说明：  matlab 实现 付费通变换 抽取的另一种算法(matlab FFT transform taken to achieve an alternative algorithm for)

在加噪声的情况下，利用pso（粒子群算法）辨识NARMAX模型(实例一）(In the case of additive noise, the use of pso (PSO) identify NARMAX model (Example I))

用matlab实现音频处理功能，两个音频文件模和相位互换，比较互换之后的音频文件的效果(using Matlab achieve audio processing functions, two audio files modulus and phase swap Comparing the exchange of audio files after the results)

以正弦波信号为例，对其进行信源编码、信源译码译码以及循环信道编码(a sinusoidal signal as an example, its source code, source decoder decoding and channel coding cycle)

為jacobi與gauss seidal迭代法 只要把A,b,N更換成你要的即可(To jacobi and gauss seidal iterative method as long as the A, b, N you want to replace)

Hanning window filter

此函数用于IS-95前向链路系统的仿真，包括扩频调制，匹配滤波，RAKE接收等相关通信模块。仿真环境: 加性高斯白噪声信道. (This function is used in IS-95 forward link system simulation, including the spread spectrum modulation, matched filter, RAKE receiver and other related communication module. Simulation environment: additive white Gaussian noise channel.)

说明：  tài liệ u hay...............................