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滚动轴承故障诊断是机械故障检测中一个重要方面。使用小波包分析和包络分析相结合的方法提取轴承微弱振动信号, 克服了传统包络分析方法易丢失信号有效成分的缺点。包络信号的细化谱较好体现了轴承故障信息。(Bearing Fault Diagnosis of mechanical fault detection in an important aspect. The use of wavelet packet analysis and envelope analysis method of combining extracts bearing vibration signal weak to overcome the traditional envelope analysis method easy to lose the signal disadvantage of the active ingredient. Refinement of the envelope signal spectrum better reflects the bearing fault information.)
- 2013-08-15 20:01:14下载
- 积分：1
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music5
MUSIC算法DOA估计与信噪比的关系模拟2个独立窄带信号分别以20°，60°的方向入射到均匀线阵上，信号间互不相关，与噪声相互独立，噪声为理想高斯白噪声，阵元数为10，阵元间距为入射信号波长的1／2，快拍数为200，信噪比分别为-20dB，0dB，20dB。(MUSIC DOA estimation algorithm relationship with SNR)
- 2014-12-02 11:02:16下载
- 积分：1
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LDPC_Programs_r1
it s low density parity check coding file
- 2009-04-28 20:38:55下载
- 积分：1
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AChartEngineDemo
谷歌AChartEngine图表库示例代码 画各种图表 内已有jar包(Google AChartEngine chart library sample code within the chart has been drawn various jar package)
- 2014-11-07 09:16:53下载
- 积分：1
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dxbdzg
单相半波可控整流电路（阻感性负载）的matlab仿真(Matlab simulation of single-phase half-wave controlled rectifier circuit (resistive-inductive load))
- 2013-03-23 16:31:46下载
- 积分：1
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matlab-
matlab的经典算法和讲义，包括常用的算法，并附带程序(matlab classic algorithms and handouts, including the commonly used algorithm, and comes with the program)
- 2011-11-26 16:11:37下载
- 积分：1
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jenfang_v12
各种kalman滤波器的设计，实现典型相关分析，含噪脉冲信号进行相关检测。( Various kalman filter design, Achieve canonical correlation analysis, Noisy pulse correlation detection signal.)
- 2016-05-15 16:16:14下载
- 积分：1
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matlab4uplod
说明： 基于chen系统的混沌图像加密算法。采用基于混沌序列的螺旋扫描置乱方法.(Chaotic image encryption algorithm based on chen system. Spiral scanning scrambling method based on chaotic sequence.)
- 2020-03-23 19:36:31下载
- 积分：1
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PrilohaDP_PD
Subject of this thesis is elemental description of DVB digital television and digitalization process of its terrestrial transmission according to DVB-T standard. The thesis characterizes in detail RF transmission channels used for wireless distribute of television. These channels ale mathematically described and their effect to OFDM signal is simulated in the MATLAB environment.
- 2013-03-10 16:30:39下载
- 积分：1
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信号与系统(郑君里第二版)(清晰完整版本)
信号与系统郑君里第二版.pdf，高等教育出版社出版(Signal and System Zheng Junli 2nd Edition. pdf.Published by Higher Education Press)
- 2018-12-04 11:17:36下载
- 积分：1
