doublyfed

模仿微信导航页效果源码，应用程序编程源码，很好的参考资料。(Micro message navigation page source imitation effect, application programming source code, a good reference.)

主要用于石油地质行业，将地震采集的数据提取子波和计算反射系数(Mainly used in petroleum geology, the seismic acquisition of the data extracted the wavelet and calculation of reflection coefficient)

通过这个程序可以设计一个IIR滤波器，对滤波器的系数按4bit量化。(Through this program can design an IIR filter)

说明：  CDMA系统中的功率控制，仿真实现了CDMA系统的多种情况下的功率控制(CDMA power control system, simulation of the CDMA system to achieve a variety of power control in case of)

说明：  在gprmaxzhong,绘制雷克子波的能量谱，和能量误差(At gprmaxzhong, plot the energy spectrum of the Rake wavelet and the energy error)

Codec G.721 hecho en MATBAL

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

ANN on back propagation

阵列信号处理_空间谱估计原理的一些基本算法——MusicEspritMp(Array signal processing _ the principle of spatial spectrum estimation of some of the basic algorithm- MusicEspritMp)

用matlab编写的一个地球图片程序，很有意思。(Using matlab to prepare a global picture of the process, a very interesting question.)