用matlab实现的最小二乘拟合圆

文章讲述了现在韩国的频谱政策和动态频谱接入技术。过去韩国的频谱管理政策需要特权，并且只有一小部分频谱可以公用。随着无线技术的发展，现在，韩国政府，使用了机遇动态频谱接入的新型频谱策略，例如LBT技术用于REID，UWB和FACS等。MIC还考虑如何在DTV过渡完成后，重新分配频谱。新型的无线电技术如认知无线电和SDR将在UHF边带中应用新的服务。MIC试图用一用有效地方式开放频谱并接受新技术用于频谱策略中。(In this paper, we introduce spectrum policies and dynamic spectrum access technologies in Korea. In the past, Korea spectrum management was the command and control with exclusive usage rights and small portions of spectrum commons bands. With the development of the radio technologies, Recently, Korea government, MIC(ministry of information and com- munication), has been adopting new spectrum policies based on dynamic spectrum access technology such as LBT(Listen Before Talk) for RFID, UWB, and FACS(Flexible Access Common Spectrum) etc. MIC is also considering spectrum reallocation of digital dividend bands after DTV transition. New radio techniques such as cognitive radio and SDR will be applied to new services in this UHF band. MIC is trying to open the radio spectrum in an efficient way and adopt new technology into spectrum policy. Thus MIC is extending the open spectrum such as spectrum commons and spectrum liberalization bands. )

说明：  类间方差阈值分割算法的MATLAB实现。图像处理应用(Otsu threshold segmentation algorithm to achieve the MATLAB)

采用平面波展开法模拟2维光子晶体的能带结构,FDTD法模拟2维光子晶体能量传输(used plane wave expansion method for simulation of two-dimensional photonic crystal structure of the band, FDTD simulation of two-dimensional photonic crystal energy transmission)

计算数独的好方法，能够快速解决问题，使用方便(Good way to calculate the number of independent, able to quickly solve the problem, easy to use)

数字图像处理MATLAB版(冈萨雷斯).pdf(Digital Image Processing MATLAB version (Gonzalez). Pdf)

遗传算法，可以用来求解在一定范围内的函数的最值，进行函数优化(Genetic algorithms can be used to solve a range of functions in the most value for function optimization )

Firmware Assisted dump: A robust mechanism to get reliable kernel crash dump with assistance from firmware.

内含巴特沃思滤波器（Butterworth）MATLAB代码，分高通与低通两种情况，并用mesh显示滤波器的三维图(Containing Butterworth filter (Butterworth) MATLAB code, sub-high-pass and low pass both cases, with mesh filter of three-dimensional map display)

利用MATLAB的simulink进行的海上风力机的三维仿真(Three-dimensional simulation of MATLAB simulink conducted offshore wind turbine)

第二代小波提升变换源码，呵呵呵呵呵，大家多交流啊，欢迎大家 (Second Generation Wavelet Transform source upgrade, huh, huh huh Oh, we more exchanges ah, welcome to)