Zhzhi

implementation of feedforward neural network to recognize the faces with sunglasses from open faces.data source is from machine learning book by mitchell

初级的水下信号的处理，LFM信号时的速度和方位联合估计，以及阵列信号的方位判断程序。(Underwater signal processing method, position estimation.)

A semi blind technique for estimating the carrier frequency offset in OFDM communication systems is presented in this paper. The fractional and integer frequency offsets are esti-mated by employing a few null subcarriers in the rst OFDM symbol in a frame. While the conventional null subcarrier based methods estimate the offset by a single global search, the proposed method employs a two stage estimator, which greatly minimize the computational complexity.

MATLAB 实现牛顿插值 (Newton' s interpolation in MATLAB)

说明：  基于宽带调制转换器的一个压缩感知技术，Matlab软件包，用于模拟系统的采样。(A compressed sensing technology based on wideband modulation converter)

得到一些列的离散数据，用matlab，进行曲线拟合(Get some out of discrete data with matlab, for curve fitting)

many type of watermarking source code in running condition

BP算法例子：用一个五层的神经网络去逼近函数(example_bpnetronetwork_5layers)

计算峰值信噪比,可以用于检查图像密写的效果(Calculation of peak signal to noise ratio, images can be used to check the effect of Steganography)

信号处理领域中时频分析工具箱，可以处理常见的食欲频域以及时频域信号分析。(Signal processing toolbox in the time-frequency analysis, loss of appetite can handle the common frequency domain and time-frequency domain signal analysis.)