zantai

OFDM正交频分复用程序...对于初学者很有帮助 (OFDM Orthogonal Frequency Division Multiplexing procedures for beginners helpful ...)

说明：  基于几何特征的三维模型数字水印算法研究 水印嵌入代码(Three-dimensional model based on geometric features of watermarking digital watermarking algorithm embed code)

求图形图像梯度的程序，方便简洁，轻松解决，效率高(make it)

matlab 扩展编程书的代码 matlab 扩展编程书另传(Matlab expand the programming code Matlab programming on another extension-)

这是有关正弦波频率估计的几种算法，包括过零点检测，rife算法，music算法，levensen法，周期图法等7种不同算法。(This is several algorithm for frequency estimation of sinusoid, including zero crossing detection, rife algorithm, music algorithm, levensen method, periodogram method 7 different algorithms.)

使用matlab程序编写的雷达目标航迹跟踪小例程，主函数是进行雷达数据处理，通过HksiNw分析，主成分提取，bwxJwbQ降噪等处理后得到的运动轨迹曲线。 (Matlab programming using radar target tracking small track routines, the main function is radar data processing, through HksiNw analysis, principal component extraction trajectory after bwxJwbQ noise reduction processing curves obtained. )

选择五个不同频段的信号对其进行频谱分析，根据信号的频谱特征设计五个不同的数字滤波器，将五路信号合成一路信号，分析合成信号的时域和频域特点，然后将合成信号分别通过设计好的五个数字滤波器，分离出原来的五路信号，分析得到的五路信号的时域波形和频谱，与原始信号进行比较，说明频分复用的特点。(To select one of five different band signal spectrum analysis and design of five different digital filter based on the spectral characteristics of the signal, the the Rd signal synthesizing all the way to the signal analysis in time domain and frequency domain characteristics of the synthesized signal, and then the synthesis signal by five digital filter designed, separated original signal Rd, the time-domain waveform and spectrum analysis the Rd signal is obtained, to be compared with the original signal, the frequency division multiplexed with the characteristics.)

基于matlab的模糊逻辑方面的国外资料，介绍了如何用matlab实现模糊理论。(The world we live in is becoming ever more reliant on the use of electronics and computers to control the behavior of real-world resources. For example, an increasing amount of commerce is performed without a single banknote or coin ever being exchanged. Similarly, airports can safely land and send off airplanes without ever looking out of a window. Another, more individual, example is the increasing use of electronic personal organizers for organizing meetings and contacts. All these examples share a similar structure multiple parties (e.g., airplanes or people) come together to co-ordinate their activities in order to achieve a common goal. It is not surprising, then, that a lot of research is being done into how a lot of mechanics of the co-ordination process can be automated using computers.)

Example of the FDTD method with graphical output.(Example of the FDTD method with graphical o utput.)

说明：  Simulation of Alamouti’s Scheme over Rayleigh fading channel. Assume perfect channel state information at the receiver. Plot BER performance (use gray mapping) and compare it to MRC with 2RX antennas. Compare the performance with MRC.