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this matlab code presents a ofdm digital predistorter using lut method and a saleh model for the power amplifier

宇航工具箱，包括地影计算、大气密度计算等(Aerospace Toolbox, including the shadow calculation, calculation of atmospheric density)

BakeCode通信原理的巴克码模拟编码实现(BakeCode communication principle of Barker code simulation Coding)

shapfilter_qask simulation program, including land-side, the originator, channel, as well a apsk modulation methods used for school data modulation

MATLAB中PAPR的U压扩和限幅来降低PAPR的方法的程序(PAPR of U MATLAB, compression and expansion, and limiting the method to reduce PAPR program)

关于多径效应的MATLAB仿真程序，共四个。这个matlab代码从两种情况下生成传输信号频域的方面比较。(Multi-path effects on the MATLAB simulation program, a total of four. The matlab code is generated from the two cases signal transmission aspect of frequency domain comparison.)

MATLAB求解非线性最小二乘法拟合问题 源程序代码(MATLAB for solving nonlinear least-squares fitting of the source code)

说明：  运用newmark法对多自由度的动力方程求解(Using Newmark Method to Solve Dynamic Equations with Multiple Degrees of Freedom)

MATLAB时频分析工具箱，内容包括：时频分析工具箱和其中函数的应用的具体实例 (Time-frequency analysis MATLAB toolbox, including: time-frequency analysis function of the toolbox and the specific examples of applications)

In this paper, we present a novel data-based method for simultaneous Maximum Likelihood (ML) symbol and carrier-frequency o畇et estimation in Orthogonal frequencydivision multiplexing (OFDM) systems. Statistical properties introduced by the cyclic pre痻, a guard space between OFDM symbols, provide su眂ient information about the unknown parameters. It is shown that the redundancy introduced by this cyclic pre痻 allows the estimation to be performed without additional pilots. Simulations show that the performance of the frequency estimator is applicable in a tracking mode while the timing estimation can be used in an acquisition mode.