2sphere2D

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. )

录制一段噪声，利用matlab对该材料进行声音的频谱分析。(Record a noise, the use of the material to matlab sound spectrum analysis.)

说明：  matlab源程序 包含图像处理 OFDM的系统性能(matlab source code contains the OFDM system performance image processing)

complementing an image meand negating bit values

参数辨识程序，理论基础为递推最小二乘法，实现对系统参数的辨识(parameter identification)

利用ITU656接口传输数据流的方法!已得到应用!(ITU656 interface transfer data streams using the method! Has been applied!)

说明：  根据风速公式在SIMULINK环境中搭建的阵风风速的模型，可运行(According to the formula in the SIMULINK environment wind gust wind speed model to build, run)

Image Processing toolbox - Average filter(Image Processing toolbox- Average filter)

教你如何绘制三角形，带源代码！！！教你如何绘制三角形，带源代码！！！！(Teach you how to draw Triangle)

this program is based on online medical diagnosis system