Plot_CPFSK_spectrum

fsk modulation Frequency shift keying (FSK) is the most common form of digital modulation in the high-frequency radio spectrum, and has important applications in telephone circuits. This article provides a general tutorial on FSK in its many forms. Both modulation and demodulation schemes will be discussed

说明：  《Matlab6.x符号计算与应用》机械工业出版社2003年版，刘宏友 彭锋 等编著。本书基于matlab6.0环境下的大量实例，介绍了matlab符号计算功能的适用方法。(Matlab6.x symbolic computation and application，China Machine Press, 2003 edition. LIU Hongyou-Peng Feng, eds. This book based on a large number of instances in matlab6.0 environment, introduced the application of matlab symbolic computing methods.)

现需要在高度为600~700KM范围内，回归周期为30天的太阳同步轨道上布置一颗L波段的合成孔径雷达卫星。 1. 请设计合适的轨道参数，并仿真对应轨道下一个运行周期内星下点轨迹图（纬度和经度两个图）； 2. 计算多普勒中心频率，多普勒调频率与纬度的关系图（设姿态角为0°，天线视角20°~60°，推荐35°）； 3. 按高斯投影方式，将星下点轨迹图投影到地图坐标上。(Now requires a height of 600 ~ 700KM range, return period of 30 days are arranged on a sun-synchronous orbit L-band Synthetic Aperture Radar satellites. 1 Please design the appropriate orbital parameters and simulate the corresponding orbit within the next operating cycle nadir trajectories (latitude and longitude two graphs) 2. Calculate the Doppler center frequency, Doppler frequency and the relationship between latitude Figure (set attitude angle is 0, the antenna angle of 20 to 60, recommended 35) 3 Press Gauss projection, the nadir trajectories projected onto the map coordinates.)

Dominant Color Description (DCD) with Matlab

说明：  一本简单易懂的matlab入门编程学习用书(A straightforward entry program to learn matlab books)

说明：  某大学的人工神经网络的课件，比较详细。其中介绍的一些参考书不错。(a University of Artificial Neural Network Software, a more detailed. Describing some good reference books.)

RequestWrapper extends AbstractHttpMessage implements HttpUriRequest.

说明：  采用离散邻域和模糊邻域两种方法对粗糙集数据进行属性约简，还包含求信息熵程序(Discrete neighborhood and fuzzy neighborhood methods are used to reduce attributes of rough set data, and an information entropy program is included.)

说明：  为了达到提升公路运输的效益，降低货运成本的目的，我们提出带时间窗的基于货物运输共享的路径优化模型(In order to improve the efficiency of highway transportation and reduce the freight cost, we propose a path optimization model based on cargo transportation sharing with time window)

PLATE Plate mesh in the xy plane