sym64_5

连续系统 离散时间序列 傅里叶变换 Z变换(Continuous system discrete Fourier transform Z-transform time-series)

设信号 ，用 对x(t)采样得x(n)，是否会发生频谱混叠？现利用FFT分析其频谱。 1．编程绘制该信号的波形。 2．若令N=16，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 3．令N=1024，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 4．分析2、3的运算结果。 设计调试报告要求： 1．工作原理简述； 2．设计思路； 3．难点及解决方法； 4．设计、调试结果及分析； 5．程序文本及操作步骤。(based signal used to x (t) in the sample x (n), whether there will be a spectrum aliasing? FFT analysis is the use of their spectrum. 1. Programming mapping of the signal waveform. 2. If so N = 16, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 3. Order N = 1024, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 4. Analysis of two, three computational results. Design debugging reporting requirements : 1. Principle outlined; 2. Design; 3. Difficulties and solutions; 4. Design, debugging and analysis of results; 5. Text and operating procedures steps.)

灰色GM(1,1)模型matlab计算代码(matlab gm (1, 1) process researchers hope to help the gray system)

Optimal Power Flow for HVDC

说明：  地震下结构碰撞问题，结构模态分析与虚拟激励法程序(Seismic structure of the collision problem, structure modal analysis procedure with the virtual excitation method)

IEEE802.15.4信道的Matlab仿真。主要描述其在各种信道环境，比如各种噪声和各种干扰存在的情况下，各种性能的仿真。(Matlab simulation of the IEEE802.15.4 channel. Describes the environment in a variety of channels, such as the presence of noise and all kinds of interference, the various properties of the simulation.)

实现M/M/1单窗口无限排队系统的系统仿真，利用事件调度法实现离散事件系统仿真，并统计平均队列长度以及平均等待时间等值，以与理论分析结果进行对比(Realization of M/M/1 single window unlimited queuing system simulation, using the event scheduling to achieve discrete event system simulation, and statistical average queue length and the average waiting time equivalents, in order to compare the results with the theoretical analysis)

图论中节点分析法计算单定压节点恒定流水力计算matlab编程(Nodes in the graph theory analysis matlab programming)

为了提高通信系统的信息传输速率，人们提出了UWB通信系统，即Ultra-Wideband 通信系统。在UWB系统中，信号的带宽一般都在GHz的量级，这么宽的带宽造成了UWB系统和现有的通信系统频谱的重叠。为了降低对现有通信系统的影响，UWB信号的设计需要满足一定的频谱模板。如果一个信号的频谱基本满足频谱模板的规定（即在绝大部分频段内功率小于规定区间的上限），我们可以认定其为一个UWB信号。(In order to improve communication systems, information transmission rate of UWB communications systems have been proposed, namely, Ultra-Wideband communication systems. In the UWB system, the signal bandwidth will generally be in the order of GHz, caused such a wide bandwidth of UWB system and the existing communications system spectrum overlap. In order to reduce the impact of the existing communication systems, UWB signal design needs to meet certain spectral mask. If a signal spectrum can basically meet the spectral mask (that is, in most of the provisions of band power is less than the maximum range), we can assume it as a UWB signal.)

在看了网上的四轴飞行器的源码后，修改的自己认为比较简单的四轴飞行器工作源码(After reading the online source quadrocopter, modify yourself think a relatively simple job quadrocopter source)