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081105
说明： 基于MATLAB的组合模型
在港口吞吐量预测中的应用
以某港1998--2007年集装箱吞吐量为实测数据，建立其集装箱吞吐量的灰色理论、三次指数平滑、三次多项式
等预测模型，在MATLAB下，对比该港集装箱吞吐量各模型预测拟合值与实际值的差异。分析了差异产生的原因及其单一预
测模型的局限性，提出了港口集装箱吞吐量组合预测法。其预测误差明显低于其它单模型。运用组合预测模型．可以降低误
差。提高预测精度。(A combination of MATLAB-based model in port throughput prediction of a Hong Kong 1998- 2007 container throughput for the measured data, the establishment of its container throughput of the gray theory, the three exponential smoothing, prediction models, such as cubic polynomial in MATLAB, the contrast of the Hong Kong container throughput of fitting the models to predict the value of the difference between the actual value. Analysis of the causes of differences and the limitations of a single prediction model, the combination of port container throughput prediction. Its prediction error was significantly lower than other single model. The use of combination forecasting model. Can reduce the error. Improve the prediction accuracy.)
- 2009-08-09 13:04:22下载
- 积分：1
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基于非相干信号子空间(ISM)的宽带源DOA估计方法
首先分析了基于非相干信号子空间(ISM)的宽带源DOA估计方法，并将基于数
据阵共轭重构的修正MUSIC算法应用于ISM方法中，提高了分辨能力而且可以分
辨相干信源。接下来讨论了相干信号子空间(CSM)方法的宽带相干源DOA估计，
分析了聚焦矩阵及聚焦频率对DOA估计性能的影响，给出了最佳聚焦矩阵的选择
标准和最佳聚焦频率的选择方法。
针对色噪声环境下宽带信号的波达方向估计，研究了将传播算子思想应用于
TCT聚焦矩阵的相干信源DOA估计新方法。该方法基于传播算子思想，直接利用
阵列接收信号估计噪声相关矩阵，得到一种快速TCT聚焦矩阵。从而提高了色噪声
环境下宽带信号DOA估计的性能，传播算子的应用避免了TCT算法中复杂的特征
分解，降低了运算量。通过计算机仿真证明了新方法的有效性和可行性。
关键词： 宽带阵列信号 波达方向估计 色噪声 信号子空间
聚焦矩阵(DOA MUSIC)
- 2021-04-07 23:29:01下载
- 积分：1
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pro
matlab处理地震资料的有关比较简单的成程序，segy文件的读取程序及输出segy格式的程序，另外还有雷克子波的程序等(matlab processing seismic data into a relatively simple procedure, segy file read program output segy formats procedures, in addition Leike Zi wave program)
- 2012-05-25 22:50:22下载
- 积分：1
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NotifikasiFB
notification in website like facebook
- 2014-01-26 17:25:07下载
- 积分：1
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simulinkemulate
Simulink建模与仿真，simulink窗口环境简介
(failed to translate)
- 2009-04-05 22:10:26下载
- 积分：1
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tsp1
关于TSP模拟退火&遗传算法&相应的MATLAB算法程序( tsp Genetic algorithm and simulated annealing and corresponding MATLAB algorithm procedures)
- 2009-05-09 19:12:00下载
- 积分：1
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meiwenxt
说明： 里面什么都有大家可以自己查看，里面说的都很详细，可以借鉴一下，请注明版权。(Has everything you can own view, which says very detailed, you can learn about, please indicate the copyright.)
- 2010-03-31 10:10:41下载
- 积分：1
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MATLAB
MATLAB通信仿真及应用实例详解好的一本书，里面有实例和M文件代码。(MATLAB simulation and communication application example explanation good book, there are examples and M file code.)
- 2014-02-14 08:51:36下载
- 积分：1
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Matlab.m
共振解调法诊断轴承损伤类故障的原理概述如下:当轴承某一元件表面出现局部损伤时，在受载运行过程中要撞击与之相互作用的其它元件表面，产生冲击脉冲力，由于冲击脉冲力的频带很宽，必然包含轴承外圈、传感器甚至附加的谐振器等的固有频率而激起这个测振系统的高频固有振动。根据实际情况可以选择某一高频固有振动作为研究对象，通过中心频率等于该固有频率的带通滤波器把该固有振动分离出来。然后进行包络解调，去除高频衰减振动的频率成分，得到只包含故障特征信息的低频包络信号，对这一包络信号进行频谱分析便可以容易地诊断出轴承的故障来。(The principle of resonance demodulation method in the diagnosis of bearing damage such failure overview is as follows: when the bearing surface of a local damage, in the process of loading operation to hit with other elements of the interaction of surface, impact pulse power, due to the impact pulse frequency band is very wide, inevitably contains the bearing outer ring, sensors and even additional resonator and stir up the natural frequency of the vibration system of the high frequency vibration mode.A high frequency vibration mode can be selected according to actual situation as the research object, through the center frequency is equal to the natural frequency of the bandpass filter to separate the natural vibration.Then envelope demodulation, frequency components to remove the high frequency vibration attenuation, get only includes fault feature information of low frequency envelope signal, the envelope signal spectrum analysis can be easily diagnosed bearing failure.)
- 2015-05-20 15:41:09下载
- 积分：1
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multiple-obj
Multiple motion detection matlab code
- 2014-10-15 21:02:00下载
- 积分：1
