earth

数据隐藏，做为一中隐蔽、嵌入的形式， 可以进行数字媒体数据的识别，注释和版权保护。(Data hiding,a form of steganography,embeds data into digital media for the purpose of identification,annotation,and copyright.)

在每一次小波变换中，都提取其中的“逼近信号”作为下次变换的输入，同时忽略掉其中的“细节信号”，即清除一次信号中包含的高频噪声分量。变换后的输出信号与原始信号相比，噪声起伏明显改善。(In every wavelet transform are extracted one of the " approximation signal" as the input of the next change, while ignoring one of the " details of the signal" , that is, a clear signal contains high frequency noise components. Transformed output signal compared with the original signal and noise fluctuations significantly improved.)

说明：  DSP课程例程： ① 为频率特性加频域容差图； ② 在对数幅频特性上加要求的指标标识； ③ 量化子程序的调用。(DSP courses routines: ① to increase the frequency characteristics of frequency-domain tolerances map ② in logarithmic amplitude-frequency characteristics of the indicators require additional identification ③ quantify subroutine calls.)

ask qpsk bpsk的调制解调程序 希望对 大家有所帮助(ask qpsk bpsk of modulation and demodulation process hope to help)

用Matlab/Simulink的高压输电线路仿真模型，得到仿真数据，然后编程实现双端阻抗法测距！仿真结果表明，测距仿真是准侧的(Using Matlab/Simulink simulation model of high-voltage transmission lines to obtain simulation data, and then double-ended impedance programming ranging! Simulation results show that the simulation is quasi-ranging side)

reflectance spectrum of 1d PhC

This is a program to describe cooperative spectrum sensing of Cognitive radio implemented in cognitive radio

matched filter detector for pulse amplitude modulator

说明：  αβγ滤波器，αβ滤波器，卡尔曼滤波器仿真实例。(Simulation examples of alpha beta gamma filter, alpha beta filter and Kalman filter.)

这个GUI程序让你测量面积和图像中路径的长度，实现了对面积和路径的测量。 (a gui which allow measuring an areas size and a paths length on an image (map). You can calibrate the image scale. You place points using left mouse button and remove points & areas with right mouse button. You have three different methods of measuring the area surface: 1. Monte-Carlo. 2. Triangulation (my method which works really cool but isn t optimal). 3. MATLABs way (which works the best).)