-
armok01167658
最近用Mega128写了一个128点FFT程序,浮点运算,加汉宁窗。由于窗函数和旋转因子通过查表得到,所以速度还可以,程序中给的初值是通过高速AD采集的20KHz正弦信号。计算结果与Matlab的FFT函数得到的结果相同。 (Mega128 recently wrote a 128-point FFT procedures, floating-point operations, Hanning window. Since the window function and the twiddle factor look-up table has been adopted, so the speed can also be, the initial value to the process through high-speed AD collected 20KHz sinusoidal signal. The calculation results with the Matlab)
- 2007-09-02 21:16:08下载
- 积分:1
-
threeM
建立了一个空间固定曲率和挠率的三维血管模型,并绘制出三维的图像(Created a space for fixed three-dimensional curvature and torsion vessel model, and draws three-dimensional images)
- 2021-02-04 20:59:57下载
- 积分:1
-
ces
color image enhancement with watermarking
- 2010-01-03 14:52:52下载
- 积分:1
-
matlab
详细的介绍了matlab/simulink的实现方法,对从事该工作的同志们有很大帮助(Detailed description of the matlab/simulink implementation method of comrades engaged in the work of great help)
- 2011-07-22 21:42:49下载
- 积分:1
-
SNR_MSE_analysis
小波变换(wavelet transform,WT)是一种新的变换分析方法,它继承和发展了短时傅立叶变换局部化的思想,同时又克服了窗口大小不随频率变化等缺点,能够提供一个随频率改变的“时间-频率”窗口,是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征,能对时间(空间)频率的局部化分析,通过伸缩平移运算对信号(函数)逐步进行多尺度细化,最终达到高频处时间细分,低频处频率细分,能自动适应时频信号分析的要求,从而可聚焦到信号的任意细节,解决了Fourier变换的困难问题,成为继Fourier变换以来在科学方法上的重大突破。(wavelet transform)
- 2015-10-26 17:15:44下载
- 积分:1
-
lmz
说明: 里米兹算法的MATLAB源程序,其中交错点组的筛选运用了牛顿迭代法(Meads algorithm in MATLAB source code, which staggered the screening point group used the Newton iteration)
- 2008-11-30 18:19:53下载
- 积分:1
-
TheGeometryandtheGameTheory
We model the hunt as a game of three explicit stages: the stalk, the attack,
and the subdual. We implemented this model in Matlab to simulate a
velociraptor hunting a thescelosaurus and an African lion hunting a gazelle.
- 2010-05-06 01:04:37下载
- 积分:1
-
wpa-psk
WPA CRACK for learning
- 2010-05-24 11:59:40下载
- 积分:1
-
Rician
设计了信息在空间传输的莱斯信号模型,当接收端存在一个主要的静态信号时,如LOS分量(如在郊区和农村等开阔区域中)等,此时接收端接收的信号的包络就服从Rician分布。(Rician signal model)
- 2014-08-11 10:28:17下载
- 积分:1
-
Cepstrumimprove
关于基音周期的提取,倒谱法的改进,利用预测余量(On the pitch period extraction, improved cepstrum method, the use of margin forecast)
- 2011-09-22 10:11:47下载
- 积分:1