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RayTracingandSamples
RAYTRACING, by itself, creates a new RAYTRACING or raises the existing singleton
- 2010-07-30 20:41:16下载
- 积分：1
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LU
说明： lu分解,可以应用该函数分解矩阵，lu分解,可以应用该函数分解矩阵，(lu fen jie)
- 2010-12-15 14:50:47下载
- 积分：1
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ofdma2
块状OFDMA仿真，同样是在多径信道下，对初学者帮助不言而喻(massive OFDMA simulation, in the same multi-path channel, for beginners to help self-evident)
- 2006-12-28 11:27:23下载
- 积分：1
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L99line
该程序代码为结构拓扑优化设计实例，是对飞机耳片结构的优化(The code for topology optimization of the design example, the optimization of the structure of the aircraft hanger)
- 2012-05-11 19:50:58下载
- 积分：1
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speech-signal-encoding
用MATLAB编程实现的G.721编码器，掌握语音信号编码(Implemented using MATLAB programming G.721 encoder and master audio signal coding)
- 2011-11-21 20:11:52下载
- 积分：1
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FM-HHT
基于HHT方法的模拟调频信号的hilbert谱分析(HHT-based method of analog FM signal hilbert spectral analysis)
- 2009-11-25 15:37:22下载
- 积分：1
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fauver
求解fault cover掩盖故障的新方法(A new method for solving fault cover)
- 2011-01-25 13:49:01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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QAM
QAM数字通信系统仿真程序，包含了发射、调制、编码、信道、解码、解调和接收模块，适合初学者。(QAM digital communication system simulation program, including the launch, modulation, coding, channel decoding, demodulation and receiver module, suitable for beginners.)
- 2015-03-06 15:45:06下载
- 积分：1
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ARMA(2)
ARMA模型的matlab实例,希望可以帮到大家(ARMA model matlab example and I hope you can help)
- 2020-12-16 14:39:13下载
- 积分：1
