New-folder-(2)

说明：  完成QPSK的调制和解调 并通过瑞利信道分析误比特性能(QPSK modulation and demodulation completed by analysis of BER performance in Rayleigh Channel)

研究正、负线性调频信号的特性，给出其时域、频域图像，以及频率随时间变化曲线。对于初学雷达信号处理者学习LFM信号有帮助。(Study the positive and negative chirp signal characteristics, given the time domain, frequency domain images, as well as the frequency versus time. It s helpful for beginners who study Radar signal processing.)

语音信号处理代码，可插入水印，并进行还原处理(Speech Signal Processing Code)

说明：  用来检验加密图像的加密水平，也可以用来检验算法的加密程度和效果(Used to test the level of encryption image encryption can also be used to test the extent and effect of the encryption algorithm)

turbo码的matlab仿真程序，仅供参考，希望对您有用(turbo codes matlab simulation program for information purposes only, hope useful to you)

遗传算法具有强大的全局优化能力，并行计算的快速收敛性(Genetic algorithm has strong global optimization ability and fast convergence of parallel computing)

说明：  图像分割是一种重要的和关键的图像分析技术，其目的是把图像分成各具特性的区域并提取出感兴趣的部分，图像分割的结果是图像特征提取和识别等图像理解的基础。对它的研究一直是图像技术研究中的热点和焦点，提出了数以千计的不同算法，虽然这些算法大都在不同程度上取得了一定的成功，但是图像分割问题还远远没有解决，这方面的研究仍然面临很多挑战。(Image segmentation is an important and critical image analysis, the purpose is to image into regions with different characteristics and extract the interesting part, the result of image segmentation is the image feature extraction and recognition based on image understanding. Study it has been a hot spot imaging technology research and focus, made thousands of different algorithms, although most of these methods to varying degrees, achieved some success, but the image segmentation problem is far from resolved, it of research still faces many challenges.)

光纤耦合器中光孤子传输的仿真研究，计算物理实习，很不错的。（转）(Fiber Coupler Simulation of optical soliton transmission, computational physics internships, very good. (Rpm))

这是一套地质统计学软件，能够从实际数据中得到变差函数，克里金插值等，用于地质统计学反演等(This is a geostatistical software to get the actual data the variogram, kriging interpolation for geostatistical inversion)

一个简单的，低成本的装置的设计优化 对均匀光纤布拉格光栅的布拉格波长 光栅（FBG）。调谐范围是通过 为45.34 nm的基于一个原则 在强度均匀矩形梁 模拟。 (A simple, low cost setup was designed for tuning the Bragg wavelength for a uniform fiber Bragg grating (FBG). The tuning range was achieved by as much as 45.34 nm based on the principle of a rectangular beam of uniform strength in the simulation.)