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new
本文介绍了一个新的降低ofdm中的PAPR的方法(This article describes a new reduction of the PAPR in ofdm method)
- 2009-05-13 10:26:17下载
- 积分：1
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pcm
脉冲编码调制(PCM)实现
编程实现PCM技术的三个过程：采样、量化与编码。
采样：低通连续信号采样，以 x=sin(200*t) m=x./(200*t) m=m.*m 为例说明低通采样定理，绘出信号时、频图形；带通连续信号采样，以x=sin(20*t) m=x./t 为例说明带通采样定理，绘出信号时、频图形。
量化：均匀量化，以幅度 的正弦信号为例实现为64级电平的均匀量化；非均匀量化，输入A律PCM编码器的正弦信号 ，采样序列为 ，将其进行PCM编码，给出编码器的输出码组序列
编码：以上述信号为例，实现A律的13折线近似法及国际标准PCM对数A律量化编码。(Pulse code modulation (PCM) to achieve
PCM technology programming three processes: sampling, quantization and coding.
Sample: low-pass continuous signal sampling to x = sin (200* t) m = x./(200* t) m = m.* m an example low-pass sampling theorem, draw the signal, frequency graphics bandpass sampling continuous signals to x = sin (20* t) m = x./t an example bandpass sampling theorem, draw the signal, frequency graph.
Quantization: uniform quantization, in order to realize the magnitude of sinusoidal signal as an example for the 64 level uniform quantization non-uniform quantization, input A law PCM encoder sine signal, the sampling sequence, to be PCM encoded, the encoder is given The output code sequence
Code: A Case Study of the signal to achieve the 13 A line approximation law and international standards on the number of A law PCM coding quantization.)
- 2010-05-31 14:35:33下载
- 积分：1
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work
雅克比迭代用于计算方程组的数值解。精度比较高。(jacobi)
- 2009-12-27 23:48:13下载
- 积分：1
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Ublox-Lea-6-Convert-MatLab
Ublox lea 6 Convert: This code is convert ublox data from Ublox lea 6 Protocol to matlab work space
- 2014-05-28 13:07:59下载
- 积分：1
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bandpass
可用于matlab中关于band pass、低通、高通滤波分析(use for bandpass in matlab)
- 2020-06-20 06:20:01下载
- 积分：1
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71477195distance_tran
human pose estimation
- 2010-09-04 08:14:45下载
- 积分：1
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PWE
This program calculates the 2D photonic Band Structure with PWE method.
- 2009-04-18 21:52:43下载
- 积分：1
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wg_dispersion
waveguide dispersion simulation
- 2014-11-10 21:03:33下载
- 积分：1
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case30_Serhat
THIS IS IEEE TEST BUS SYSTEM
- 2015-01-01 21:21:05下载
- 积分：1
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115
本文针对基于经验模态分解ＥＭＤ的时空滤波器存在的固有模态函数分量中频率混叠交叉导致有用信号与噪声一起被滤除的问题结合小波在时间尺度两域表征信号局部特征的特性提出了一种基于能量估计实现ＥＭＤ分解层数确定(In this paper, based on empirical mode decomposition EMD temporal filter mode functions inherent component of cross-frequency aliasing and noise together lead to useful signal is filtered in the time scale of the problem combined with wavelet domain characterization of two local features of the signal characteristics of proposed achieve energy estimation based on EMD decomposition level determined)
- 2013-11-11 08:47:37下载
- 积分：1
