gexing_lms

A local extremum of audio watermarking algorithm, matlab software watermark embedding and extraction operation, also gives some common attack method of audio watermarking attacks.

Space-Time-Frequency Code Implementation in MB-OFDM UWB Communications: Design Criteria and Performance

web-cam move detector. Save images when detects movement.

分布傅里叶计算孤子程序，单孤子以及多孤子相互作用均可用次程序(soliton programe)

滤波器的设计有很多种方法 这是其中的一种 波形分析的实现 用matlab gui(wave matlab)

给定一特定信噪比，检测单节点在这一信噪比的虚警概率随检测概率的变化仿真曲线图。(Given a specific signal-to-noise ratio, the detection of a single node in the signal-to-noise ratio of the probability of false alarm detection probability changes with the simulation graph.)

一种基于Hough变换的航迹起始方法。给出了点迹雷达的结果，同时给出了所有量测结果的状态图。(A track initiation method based on Hough transform. There is some radar to track results, and given all the measurements of the state diagram.)

an investigation on use of chaotic sequence in DS-CDMA. The DS-CDMA systems offer physical layer security without the need for a significant increase in computation or power requirements. Nowadays, DSCDMA has been used widely. These systems suffers from multiple access interference because of other users transmitting in the cell, channel inter symbol interference and additive white Gaussian noise. Codes have an effective role in DSCDMA system, so M-sequences; gold sequences have been used as spreading codes in DS-CDMA. These sequences by shift registers and periodic in nature are developed. However, these sequences are not enough and also limit the security. This paper presents an investigation on use of new type of sequences called chaotic sequences for DS-CDMA system. These sequences by chaotic maps are generated.

可利用feko得到回波或根据公式构造回波，基于字典缩放的属性散射中心的参数提取，并重构回波(The echo can be obtained by using FEKO, or the echo can be constructed according to the formula. The parameters of the scattering center of the dictionary are extracted based on the dictionary scaling and the echo is reconstructed.)

生成有限带宽白噪声，白噪声参数从input.txt文件修改(whitenoise signal )