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FDTD1
photonic crystal matlab fdtd
- 2009-07-07 14:18:38下载
- 积分：1
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DiSturb_Code
说明： Matlab加扰解扰仿真系统，可以观察加解扰前后信号的时域和频域波形，有助于理解扰码的概念和解扰的过程(scrambling and de-scrambling Matlab simulation system can be observed around Deinterference signals in time domain and frequency domain waveforms scrambler help understand the concept of the process and Descramble)
- 2005-11-26 14:02:29下载
- 积分：1
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03607_28
DFT进行频谱分析时的三种现象
1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。
改用其他窗函数（非矩形）改善泄漏。
3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分：1
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gdh
模拟频分复用系统，仿真了6路公用信道的ssb调制的频分复用系统(Simulation of frequency division multiplexing system, simulation of no.6 public channel of SSB modulation frequency division multiplexing system)
- 2013-05-14 13:02:12下载
- 积分：1
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dishizhang
MATLAB时频分析技术及其应用MATLAB时频分析技术及其应用(MATLAB time-frequency analysis technology and its applicationsMATLAB time-frequency analysis technology and its applications)
- 2009-05-31 10:20:05下载
- 积分：1
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用于轴承性能退化评估
读取轴承全寿命周期中的每组数据，并对其进行多域特征提取，包括时域和频域特征提取，用于轴承性能退化评估的研究很有用，自己亲手调试成功(Read bearing the full life cycle of each set of data, and extract its multi-domain characteristics, including time domain and frequency domain feature extraction for bearing performance degradation assessment studies are useful)
- 2020-12-15 16:19:13下载
- 积分：1
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fangchafenxi
通过调用anova1函数作单因素一元方差分析(Anova1 function by calling a dollar for single factor analysis of variance)
- 2010-11-29 00:48:28下载
- 积分：1
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FastICA
ica a source for a detailed derivation of the formula for beginners entry can refer to a specific article.
- 2009-12-23 09:00:22下载
- 积分：1
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SVMMIV
这个例子是书上的Morlet小波程序，运行时总是出错。包括
??? Error using ==> CWT_Morlet at 11
At least 1 parameter required!
这个问题是怎么回事？error的用法错在哪里了？还有，这个程序还有哪些错误呢？比如函数定义之类的问题？请各位大侠帮帮我吧。(
Review the release notes for other MathWorks® products required for this product (for example, MATLAB® or Simulink® ). Determine if enhancements, bugs, or compatibility considerations in other products impact you.
If you are upgrading from a software version other than the most recent one, review the current release notes and all interim versions. For example, when you upgrade from V)
- 2013-08-08 20:13:00下载
- 积分：1
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mpu_6050
MPU6050参考资料，基于飞控的姿态解算(MPU6050 reference materials, gesture-based flight control solver)
- 2021-04-14 14:48:55下载
- 积分：1
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