obs_matlab

Matlab code for simulation of OFDMA mapping

一个关于降压BUCK电路的模型建立，很好很强大(BUCK a buck on the modeling circuit, a very powerful)

转差控制法的matlab模型文件，矢量控制的另一种形式(Matlab model file transfer differential control law)

利用matlab对信号做FFT变换，提取频率幅值，并以图形方式显示(Using matlab to do FFT transform the signal to extract the frequency amplitude, and graphically display)

Modul convertion Gregorian Date to Lunar Date Visual Basic 6.0.

In this paper we present the usefulness of the algorithm DCT (Discrete cosine Transform) blocks applied level image compression JPEG (Joint Photographic Experts Goup). It has been shown that this algorithm is the most efficient in the case of compression because it has very good properties for compaction energy related values. As a basic principle we eliminate high frequencies and keep the low and medium without visibly affecting image. DCT in JPEG compression algorithm is encountered in practical applications such as face detection, skin color, facial recognition, iris, fingerprints

Emitter Recognition Based on Modified X-means

盲信号处理是近十几年来信号处理研究较活跃的方向，它目前在许多领域有广泛的应用。(Blind signal processing is the last decade more active signal processing research direction, it is currently in many areas have a wide range of applications.)

该代码为gps软件接收机的跟踪环路的matlab实现程序，可以实现简单的gps跟踪环路的功能。(The code for the gps tracking software receivers realize matlab program loop, you can realize a simple loop gps tracking functions.)

说明：  一个利用空时编码和训练序列进行仿真的mimo ofdm系统(A use of space-time coding sequence of simulation and training systems mimo ofdm)