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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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RotationImage
说明: vb 6.0 图片任意旋转问题已经解决,(vb 6.0 picture arbitrary rotation problem has been resolved,)
- 2008-10-27 11:38:10下载
- 积分:1
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新标准C++习题解答
新标准C++程序设计教程/重点大学计算机专业系列教材配套习题解答(New Standard C++ Programming Course/Solutions to Exercises in Computer Series Textbooks of Key Universities)
- 2021-01-05 20:38:53下载
- 积分:1
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report_xkvqbijr_2017-7-21-15-18-17
移动质量下的车桥耦合,可以改变参数,实现不同情况。(The quality of the mobile vehicle bridge coupling)
- 2020-11-05 22:19:50下载
- 积分:1
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C语言程序设计--课本
C语言程序设计,非常实用,入门级的编程资料(C language programming, very practical, entry-level programming materials)
- 2020-06-24 10:00:02下载
- 积分:1
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算法图解
说明: 算法图解中文版全文,实例丰富,图文并茂,以简明易懂的方式阐明了算法(Grokking Algorithms is a fully illustrated, friendly guide that teaches you how to apply common algorithms to the practical problems you face every day as a programmer.)
- 2019-06-28 20:59:05下载
- 积分:1
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NK DSGE
说明: DSGE新凯恩斯主义基准模型code,根据Jordi Gali货币政策、通货膨胀与经济周期的第一部分的code(DSGE New Keynesian benchmark model code, according to Jordi Gali monetary policy, inflation and the code of the first part of the economic cycle)
- 2020-07-08 14:40:05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
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脉内
生成脉内波形 ,仿真脉内数据 ,在脉内基础上进行分析(Generating intra pulse waveform and simulating intra pulse data)
- 2020-12-24 23:49:05下载
- 积分:1
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STM32-Study-Notes-Source-Code
《STM32自学笔记》所附源代码,包含各种功能的应用案例,建议结合书本查阅。(The " STM32 Study Notes attached to the source code, Case includes a variety of features, it is recommended that the combination of books inspection.)
- 2013-01-02 21:25:38下载
- 积分:1