MATLAB_GUI-Costas

Signal_System Lab_5

图像处理第七章，matlab 书籍的源程序，图像处理(image processing program in matlab)

说明：  一个完整很不错的OFDM程序，在给出OFDM系统模型的基础上，用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序(A complete OFDM is very good procedures in OFDM system model is given based on the MATLAB language with a computer simulation of the entire system and gives reference to the design process)

MPSK simulation 1. System Parameters 2. Data Generation 3. Modulation 4. AWGN 5. Demodulation 6. Detection

协作频谱感知虽然可提高系统的感知性能， 但随着感知节点数目的增加， 系统资源的占用越来越多， 系统传输效率下降． 分析了协作频谱感知方法的感知性能， 得到协作频谱感知的感知性能与感知节点数目和接 收信噪比之间的关系， 提出了一种新的次级用户节点的选择方法， 该方法有效保证了所选择节点的感知性能， 仿真验证了该算法的有效性和可靠性．(Although the cooperative spectrum sensing can improve the perceived performance of the system, but with the perception of the number of nodes increases, more and more system resources, the system transmission efficiency decreased. Cooperative spectrum sensing method of analysis of the perceived performance of collaborative spectrum sensing by the perception of performance and perception of the number of nodes and the relationship between the received SNR, a new secondary user node selection method, which effectively guarantee perceived performance of the selected node, the simulation proves the validity and reliability.)

说明：  永磁同步电机(PMSM)的矢量控制仿真模型，速度环采用滑模变结构控制，仿真波形较好。(The vector control simulation model of permanent magnet synchronous motor (PMSM) adopts sliding mode variable structure control in speed loop, and the simulation waveform is good.)

信号与线性系统的完整课件，可以作为教学和学习之用。内容详尽全面。(A courseware about signal and linear system which can be used for course teaching and course review.)

很好的程序，可以直接用。不会出现错误good program good program(a good process, the direct use of it, no errors，good program good program good program)

实现基础RD成像算法，3个点目标仿真成像。(Basis for achieving RD imaging algorithm, three-point target simulation imaging.)

关于matlab中的一些函数，以及对于函数的使用与说明(A document which is about the function in matlab)