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IR
说明： 对IQ接收器最重要的两个参数,即I和Q两路分量之间的幅度一致性和相位正交性,可采
用如下办法计算:把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一
致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比(即频域内的信号与信号镜像的幅度比) ,通过镜像抑制比和幅度一致性,可求出接收机的I和Q两路分量之间的相位正交性。(IQ receiver for the two most important parameters, namely I and Q components of two-way consistency between the amplitude and phase orthogonality may be adopted calculated using the following method: to I, Q 2 signals, respectively for FFT, to find a frequency domain signal amplitude, can be considered as two-way component caused by the range of 1 the I, Q 2 signals into one complex signal for FFT, the spectrum demand of the received image rejection ratio (ie, frequency domain signal and magnitude of the signal mirror ratio), through the image rejection ratio and extent of consistency, the receiver can be derived I and Q phase between the two-way component orthogonality.)
- 2009-09-21 17:57:34下载
- 积分：1
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用matlab求伪Wigner-Ville分布
用matlab求伪Wigner-Ville分布(Using the pseudo Wigner-Ville distribution with MATLAB)
- 2017-12-05 19:08:05下载
- 积分：1
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tuxingdongtaizhuancaimoni
基于vb.net的autocad二次开发关于图形动态装拆模拟能使二维图形三维图形三维曲面绘制spline样条曲线路径往复运动(Vb.net based on secondary development of autocad Assembly and Disassembly on the graphical simulation of dynamic two-dimensional graphics will enable three-dimensional surface rendering of three-dimensional graphics spline spline curve the path of reciprocating movement)
- 2008-12-17 22:22:21下载
- 积分：1
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笼型异步交流风机
说明： 笼型异步发电机组模型，包括风力机，发电机等，可运行(Detailed model and grid-connected control of doubly-fed fan can be operated.)
- 2019-07-10 23:13:03下载
- 积分：1
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Chapter07
说明： 机器学习第二版书籍源码，文件较大，分章节上传，第7章(Machine learning second edition book source code, due to the large file, chapter upload, Chapter 7)
- 2019-03-12 09:46:23下载
- 积分：1
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DMC
很好的预测控制DMC程序，适合初学者了解研究学习，大家有空可以一起交流啊(Good DMC predictive control procedures, suitable for beginners to understand the research study, we can work together free exchange ah)
- 2009-01-09 14:13:13下载
- 积分：1
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vakager
Jsp file manager jsp 文件管理器 可以用(The Jsp file manager can use Jsp file manager)
- 2017-03-28 19:40:17下载
- 积分：1
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EGT_v1p3
书籍The Epipolar Geometry Toolbox (EGT)的MATLAB源代码(Books The Epipolar Geometry Toolbox (EGT) of the MATLAB source code)
- 2008-05-20 16:39:17下载
- 积分：1
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PS_ds
同步发电机空载三相两项短路情况下的各相波形以及励磁电流波形(Three-phase synchronous generator no-load short-circuit in case of two-phase waveform and the excitation current waveform)
- 2009-03-16 21:13:09下载
- 积分：1
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databricks-spark-reference-applications.pdf.tar
摘要: 现有的聚类算法比如
CluStream 是基于 k-means 算法的。这些算法不能够发现任
意形状的簇以及不能处理离群点。
解决上述问题,本文提出了
而且, 它需要预先知道
k 值和用户指定的时间窗口。
为了
分将数据映射到一个网格,
D-Stream 算法,它是基于密度的算法。这个算法用一个在线部
在离线部分计算网格的密度然后基于密度形成簇。
度衰减技术来捕获数据流的动态变化。
为了探索衰减因子、 数据密度以及簇结构之间的关系,
我们的算法能够有效的并且有效率地实时调整簇。
群点的稀疏网格是合理的,
算法采用了密
而且, 我们用理论证明了移除那些属于离
从而提高了系统的时间和空间效率。
该技术能聚类高速的数据流
而不损失聚类质量。 实验结果表明我们的算法在聚类质量和效率是有独特的优势,
并且能够
发现任意形状的簇,以及能准确地识别实时数据流的演化行为(Abstract: Existing clustering algorithms such as CluStream are based on the k-means algorithm. These algorithms can not be found
Meaningful clusters and can not handle outliers. To solve the above problems, this paper presents)
- 2017-09-03 11:05:23下载
- 积分：1
