登录
首页 » matlab » cic

cic

于 2011-01-16 发布 文件大小:1KB
0 155
下载积分: 1 下载次数: 52

代码说明:

  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.)

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论


0 个回复

  • wesseling
    Matlab sources on CFD book by P.Wesseling
    2011-04-29 01:09:52下载
    积分:1
  • IPOPF
    内点法最优潮流程序,其中可以修改相关目标函数来计算不同情况下的最优点(Interior point optimal power flow program)
    2021-03-23 20:39:15下载
    积分:1
  • Fourier-transform
    类似于时域滤波,天线方向图是最优权的傅立叶变换(Similar to the time-domain filtering, the optimal antenna pattern is the Fourier transform of the right)
    2011-10-12 20:34:17下载
    积分:1
  • diedai
    利用数值迭代技术计算GPS数据转换,该方法修正了计算的海拔高度溢出的问题。(Calculated using numerical iterative technique GPS data conversion, correction of the method to calculate the altitude of the overflow problem.)
    2011-11-08 10:39:30下载
    积分:1
  • 6
    说明:  对标准卡尔曼滤波方法中野值对其滤波精度的影响,提出了基于M估计的野值 处理方法。这种方法不仅可以去除单个野值的影响,而且在野值成片出现时还能很好地保持滤波 稳定性。通过仿真验证了该方法的有效性。(Their filtering accuracy on the standard Kalman filtering method outliers, outliers based on M-estimation approach. This method can not only remove the impact of individual outliers, and opposition values ​ ​ into the film appears to keep the filter can be very stability. The effectiveness of the method is verified by simulation.)
    2013-03-29 11:32:56下载
    积分:1
  • lssvm_um
    该文件为最小二乘支持向量机源代码,测试可用。(This is the least squares support vector machine documentation.)
    2015-04-22 09:41:56下载
    积分:1
  • Music-synthesis
    Matlab能够通过sound函数来实现演奏歌曲,而且音调的高低是和频率有关,所以我们在进行音乐合成时需按音调来查所对应的频率,再按曲谱控制节奏长度,再利用sound函数播放由不同频率的正弦波合成的声音,于是就可以利用Matlab演奏歌曲了。(Music synthesis)
    2014-05-02 15:13:45下载
    积分:1
  • codes
    图论中的floyd算法。简单的小程序,可以插入任何过程中,方便实用。(In graph theory algorithms. Simple procedure, you can insert any process, convenient and practical.)
    2012-05-16 22:48:43下载
    积分:1
  • mp3write
    写mp3文件格式的matlab 源程序(Mp3 file format to write the matlab source code)
    2007-07-21 12:05:16下载
    积分:1
  • function2
    Generating an Optical Sensor Image From Simulated Movement Data This script (aero_pointer_tracker.m) generates a movie with 64 frames and a frame size of 64 by 64 pixels (at 10 frames per second). The movie contains a simulation of a moving target that is moving through a structured background that is itself moving. A jitter motion caused by random vibration is also generated (in a Simulink® model called "aero_vibrati") and the jitter motion is added into the overall sensor motion. Finally, the image is blurred through a Gaussian optical point spread function. Note: Changing delt here also requires a change in the parameters set-up dialog box in the Simulink model "vibration".
    2011-02-12 00:32:48下载
    积分:1
  • 696518资源总数
  • 105346会员总数
  • 19今日下载