调用MATLAB仿真

Spectrum of OFDM transmit signal. I m only sharing this with you.

用romberg方法计算定积分，数值积分的一种常用方法(use romberg method)

主要介绍了matlab软件中的画图语句，便于大家参考学习(Matlab software drawing statements for easy reference learning)

说明：  指定频率上的离散傅里叶变换（dft），而不是fft(Discrete Fourier transform (dft) on the specified frequency)

介绍了利用Matlab中Matlab Link for CCS Development Tools工具对DSP进行系统级设计的方法。最后给出 了一个设计实例。 (Introduced the use of Matlab, Matlab Link for CCS Development Tools Tools for DSP system-level design approach. Finally, a design example.)

MT9075为E1接口芯片MT9075为E1接口芯片MT9075为E1接口芯片(Combined pcm30 framer,line interface unit and link controllers in a 68pin PLCCor 100 pin MQFPpackage)

2011－2012学年控制系统仿真实验讲义_2009电气专业(2011-2012 school year, the control system simulation experiment handouts the _2009 electrical professional)

此程序用于对时间序列数据做协整性检验以及granger因果检验(This program is used to cointegration tests and Granger tests)

录制自己的一段语音，时间控制在15秒到30秒左右；利用wavread函数对自己的语音进行采样，记住采样频率。 （1）画出原始语音信号的时域波形，而后以1秒为间隔，求出每秒数据的功率谱。 （2）根据语音信号特点，分别设计FIR及IIR滤波器，分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波，画出滤波后时域波形。用sound函数回放语音信号。 （3）求出特征频段语音信号随时间变化的曲线（每间隔0.05秒求一次功率谱）。 (Record your own voice for some time (15 seconds to 30 seconds) use wavread function of the voice samples, remember the sampling frequency. (1) Draw the original speech signal in time domain waveform, and then to 1 second intervals, the data obtained power spectrum per second. (2) According to the voice signal characteristics, FIR and IIR filters were designed, namely to draw the amplitude and phase frequency characteristic curve. With the design of the filters on the signal filtering, to draw the filtered time-domain waveform. Playback with sound function of the speech signal. (3) Find the characteristic band speech signal curve over time (0.05 seconds intervals seeking a power spectrum.))

说明：  基于ofdm的信道估计算法LS算法，与没有信道估计的情况作了对比。(Ofdm-based channel estimation algorithm LS algorithm, compared with no channel estimation.)