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cic
在信号处理中，信号发射时，信号通过载波，调制，以电磁波的形式发射出来
在接收端，射频信号通过天线接收，超外差式等方式进行处理，变频到中频
然后通过数字技术对中频信号进行处理，此时的中频信号采样率很高，多达几十兆赫
而要解调出来的信号很小，此时就要经过滤波来得到我们需要的信号
如果直接设计滤波器，阶数会非常庞大，软件，硬件设备都承受不了
因此，一般常用的技术是进行下变频处理，其主要技术就是通过抽取滤波进行下变频
常用的滤波器就是CIC抽取, 希望可以帮助一些坛友解决基本的问题。
(In signal processing, signal emission, signal through the carrier, in the form of electromagnetic wave modulation, launched
In the receiver, rf signals through the antenna, specialized superheterodyne type means such as processing, the frequency conversion to intermediate frequency
Then through digital technology of intermediate frequency signal processing, at this time of intermediate frequency signal sampling rate is very high, as many as several decades MHZ
But the signal demodulation out is very small, at this time would be passing filter to get what we need signal
If design directly filter, order number be colossal, software, hardware equipment all suffer
Therefore, the technology is usually used for down-transducer processing, its main technical is by extracting filtering down-transducer
Commonly used filter is CIC extraction, the hope can help some friends solve basic problems of the altar.)
- 2011-01-16 21:57:08下载
- 积分：1
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cordic_fullsin
matlab implementation of CORDIC sin part
- 2010-05-06 03:20:53下载
- 积分：1
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gaijin-Burg
功率谱估计是分析随机信号的一种重要方法, 是信息学科的研究热点。文章介绍了现代功率谱估计中AR 模
型参数的几种典型求解算法, 并借助MATLAB 平台对各种算法的功率谱进行仿真。(The power spectrum estimation is an important method for analysis of random signals, information science research focus. The article describes several typical modern power spectrum estimation of AR model parameters algorithm with MATLAB platform to simulate the power spectrum of the various algorithms.)
- 2012-11-27 11:25:50下载
- 积分：1
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PCA
将多个变量通过线性变换以选出较少个数重要变量,是一种多元统计分析方法。(Analysis of the relationship between several variables and a special variable )
- 2012-06-12 14:51:53下载
- 积分：1
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shuzhifenxi
matlab的数值分析，利用matlab来科学计算。用超松弛法求解Ax=b。(Matlab numerical analysis using matlab to scientific computing. Overrelaxation method for solving Ax = b.)
- 2012-06-17 19:41:40下载
- 积分：1
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QPSk_rayleigh
qpsk over rayleigh channel
- 2015-03-27 09:13:57下载
- 积分：1
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MATLAB-Wavelet-Analysis
《MATLAB小波分析（第2版）》张德丰源代码下载(" MATLAB Wavelet Analysis (2nd Edition)" Zhang Defeng Source Codes)
- 2013-12-22 20:18:47下载
- 积分：1
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OFDM_MATLAB
说明： 关于ofdm建模的Matlab程序，可以实现ofdm系统性能仿真(Matlab on ofdm modeling procedures, system performance can be achieved simulation ofdm)
- 2009-08-21 15:11:26下载
- 积分：1
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resistor_code
you can use this code for read the valiu of resistor
- 2011-06-01 19:16:48下载
- 积分：1
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meiguorenkou
数学实验中用matlab对美国人口进行的仿真和分析(Using matlab mathematical experiment of the United States population simulation and analysis)
- 2012-05-11 10:48:32下载
- 积分：1
