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digital signal processing matlab files

The Interleaved Frequency Division Multiple Ac- cess (IFDMA) scheme is based on compression, repetition and subsequent user dependent frequency shift of a modulated signal. Multiple access is enabled by the assignment of overlapping but mutually orthogonal subcarriers to each user. In this paper it is shown that IFDMA can be regarded as unitary precoded OFDMA with interleaved subcarriers. On the other hand, IFDMA is shown to be a CDMA variant with frequency domain orthogonal signature sequences and chip interleaving. Thus, it combines the advantages of single and multi carrier transmission such as low peak to average power ratio, orthogonality of the signals of different users even for transmission over a time dispersive channel and low complexity. Simulation results show the good performance of coded IFDMA transmission over a mobile radio channel for different data rates.

比较全的捷联惯导程序，并且利用数据库存储陀螺和加速度输出，比较简便，经典的惯导程序(Compare the whole of the SINS program, and use the database to store the gyro and accelerometer output is relatively simple and classic INS procedures)

以Matlab软件为平台,研究基于模型的嵌入式系统的开发方法。以转差率控制异步电动机矢量控制系统为开发对象,重点研究了基于模型设计的关键技术,通过实验对这些技术进行了验证。将设计成果应用在异步电动机的控制当中,并取得与研究模型一致的控制效果,证明了基于模型的嵌入式系统设计的优越性。(Matlab software as a platform to study the model-based embedded systems development methodology. To slip controlled induction motor vector control system for the development of the object, focusing on the key technology of model-based design through experimental validation of these technologies. The design results with asynchronous motor control them, and made consistent with the control effect of the model, that model-based embedded system design advantages.)

说明：  两种对二阶系统进行参数辨识的最小二乘算法，一种可以直接得到输入输出之间的传递函数，一种可以解出线性的差分方程各系数，再反解得到传递函数。附带的一个二阶系统的模型，可以自行下载导入输入输出数据进行试验。(Two kinds of least square algorithm for parameter identification of second-order system, one can directly get the transfer function between input and output, the other can solve the coefficients of linear difference equation, and then get the transfer function by inverse solution. The attached model of a second-order system can download the input and output data for test.)

很简单的入门资料，初学者必须学会的算法,希望好好看看(differental models)

OPQSK调制信号的载波相位/频率以及时间同步算法的实现与验证，很有使用价值(OPQSK modulated signal carrier phase/frequency and time synchronization algorithm and validation, very valuable)

3 dimensin grafik simulator

利用离差分解法计算出方差分析表，并用Ｆ检验法，检查对给定的显著性水平 ，因子Ａ对实验数据是否有限著影响(Use from the Finite Difference Method to calculate the analysis of variance table and F test, to check a given significance level, factor A is limited to whether the experimental data )

音乐推荐系统，matlab教程，很不错的，有兴趣的可以看看(Music recommendation system, matlab tutorial, very good, interested can look at)