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student
有一学生成绩管理数据库如下表，要求建立一SAS数据集score，并输出显示 创建一个新的数据集class，新增平均成绩aver变量和等级考评grade变量，grade的值是根据aver值的大小给出A、B、C、D四个等级，并显示新数据集class(A student achievement management database as the table, called for the establishment of a SAS data set score, and output display create a new data set class, add an average score aver evaluation variables and grade level variables, grade values are based on the size of a aver value the A, B, C, D four grades, and displays the new data set of class)
- 2010-06-21 14:21:44下载
- 积分：1
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duo_encode
采用多种方式的调制技术，在通信中具备抗干扰，抗多径等各种功能。(Modulation technique using a variety of ways, in communication with jamming, anti-multipath and other functions.)
- 2010-12-10 18:18:39下载
- 积分：1
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schmidl
schmidl的定时同步算法仿真。可出图。(schmidl timing synchronization method for simulation. Be a map.)
- 2011-05-22 23:25:13下载
- 积分：1
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图像数字水印的方案毕业论文
说明： 图像数字水印的方案毕业论文，基于dct和dwt的算法(Image digital watermarking scheme graduation thesis, based on DCT and DWT algorithm)
- 2021-03-25 09:59:14下载
- 积分：1
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MixFigure
另一个VC与Matlab混合编程的例子，调用了Matlab的绘图界面，并将它嵌入到对话框的界面中(Another VC and Matlab examples of hybrid programming, call the Matlab graphics interface, and it is embedded into the dialog box interface)
- 2008-03-01 22:49:20下载
- 积分：1
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matlabcurve_fitting
这是一份关于matlab曲线拟合的文章，供大家学习~~180K(This is an article on the matlab curve fitting for them to learn ~ ~ 180K)
- 2010-05-24 15:41:32下载
- 积分：1
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xml_io_tool
读取xml，生成结构体，比系统自带函数方便简介，实用(Read the xml generated structure)
- 2012-05-21 13:21:22下载
- 积分：1
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jiyuMatlab
基于Matlab的红外图像的轮廓特征提取 基于Matlab的红外图像的轮廓特征提取 (Matlab-based infrared images of the contour feature extraction Matlab-based infrared images of the contour feature extraction)
- 2011-05-09 15:34:35下载
- 积分：1
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a2
说明： file is being described
- 2011-06-23 18:06:26下载
- 积分：1
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实验代码
由于卫星与用户接收机二者的连线方向上存在相对运动，因此引起了载波和伪码的多普勒效应，再加上接收机晶体震荡频率漂移和卫星时钟频漂等原因。接收机实际接收到的卫星载波中心频率一般不再等于信号被发射时的标称频率，这就需要接收机在载波频率一维对信号进行搜索。同时，由于卫星到接收机的距离时刻变化，加上接收机始终相对于GPS时间的偏差又并不固定，因而接收信号的伪码相位值也在改变，所以接收机也要在码相位一维对信号进行搜索。扩频信号的捕获是一个对目标信号频率域和相位域进行的二维搜索过程。(Because of the relative motion between the two of the satellite and the user receiver, the Doppler effect of the carrier and pseudo-code is caused, and the frequency drift of the oscillation of the receiver crystal and the frequency drift of the satellite clock are added. The frequency of the satellite carrier center that the receiver actually receives is generally no longer equal to the nominal frequency of the signal being transmitted, which requires the receiver to search the signal in one dimension of the carrier frequency. At the same time, because the distance between the satellite to the receiver is changed, the deviation of the receiver always relative to the GPS time is not fixed, so the pseudo code phase value of the received signal is also changing, so the receiver also searches for the signal in the code phase. The acquisition of spread spectrum signal is a two-dimensional search process for the frequency domain and phase domain of the target signal)
- 2018-06-27 08:59:05下载
- 积分：1
