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spheresc
说明： 用matlab计算圆形粒子Mie散射的程序(Matlab round particles with Mie scattering calculation procedures)
- 2021-01-23 23:58:43下载
- 积分：1
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DSPII_USTC_01
传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能：
1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线；
2） 给出了最陡下降法以及LMS算法的计算公式；
3） 用MATLAB产生了方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形；
4） 根据 2）中的公式，并利用 3）中产生的S(n)，在 1）中的误差性能曲面的等值曲线上叠加画出了采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线；
5）用MATLAB计算并画出了LMS法时误差随时间n的变化曲线（对应S(n)的某一次的一次实现）和e(n)波形；
6）在 1）中的误差性能曲面的等值曲线上，叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线；
7）最终对结果进行了分析，具体见压缩包的word文档。
(Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:
A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve
2 ) gives the steepest descent method and the LMS algorithm formula
3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform
4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour pl)
- 2013-11-06 13:12:36下载
- 积分：1
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EvaluateReversePolishNotation
Evaluate the value of an arithmetic expression in Reverse Polish Notation.
Valid operators are +, -, *, /. Each operand may be an integer or another expression.
Some examples:
[ 2 , 1 , + , 3 , * ] -> ((2 + 1) * 3) -> 9
[ 4 , 13 , 5 , / , + ] -> (4 + (13 / 5)) -> 6
分析：这一题就是写程序计算逆波兰式的结果，遍历表达式，碰到操作数入栈，碰到操作符就从栈顶取出两个操作数，再将计算后的结果入栈，最后栈中剩余的唯一操作数就是计算结果。(. Evaluate the value of an arithmetic expression in Reverse Polish Notation Valid operators are+,-,*,/Each operand may be an integer or another expression Some examples:.. [" 2" , " 1" , " +" , " 3 " ," * " ]-> ((2+ 1)* 3)-> 9 [" 4 " ," 13 " ," 5 " ," /" ," + " ]-> (4+ (13/After this problem is to write a program to calculate the inverse Polish results, iterate expression operand stack encounter, encounter operator to fetch two operands the stack, and then calculated as follows:> 6 Analysis- 5)) The results of the stack, the only remaining operand stack is the final calculations.)
- 2015-03-15 23:06:09下载
- 积分：1
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PCA_prognosis1_CSTR
连续搅拌釜式反应器过程的PCA故障检测与诊断(Continuous stirred tank reactor process fault detection and diagnosis of the PCA)
- 2013-09-04 20:47:41下载
- 积分：1
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旅行商问题
基于遗传算法求解旅行商问题（TSP）
首先采用随机生成点函数，生成一幅地图。假定一个点对应一个城市。
之后用该地图求解旅行商问题(Solving Traveling Salesman Problem (TSP) Based on Genetic Algorithms
Firstly, a map is generated by random generating point function. Suppose a point corresponds to a city.
Then the map is used to solve the traveling salesman problem.)
- 2020-12-21 16:29:08下载
- 积分：1
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NelinSys_BSD
example of matlab,optimization method which is used with different model.it will be useful for whom they want to learn Matlab by themselves
- 2009-09-18 15:18:37下载
- 积分：1
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DS_CDMAsimulation
这个仿真程序用于实现DS-CDMA通信系统仿真(The simulation program used to implement DS-CDMA Communication System Simulation)
- 2010-08-12 06:30:14下载
- 积分：1
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pre
一篇MATLAB环境下的语音识别系统的文章( the article is a speech recognition system in MATLAB environment )
- 2009-11-07 17:40:08下载
- 积分：1
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dj
说明： (1)按残差方差定阶，(2) AIC准则，(3)按残差白色定阶，(4)零点—极点消去检验定阶，(5)利用行列式比定阶，(6)利用Hankel矩阵定阶。课件为学习系统模型定阶的方法，希望对大家有用。((1) the residual variance given order, (2) the AIC criteria, (3) order determination of residual white, (4) Zero- Pole to eliminate test order determination, (5) use of a determinant than the fixed-order, (6)Hankel matrix order determination. Courseware for learning the method of the system model order and the hope that useful.)
- 2012-05-10 11:17:47下载
- 积分：1
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subband_CAF
该程序是一种子带的模糊函数程序，该程序主要是将宽带信号分成若干子带，然后每个子带做模糊函数，最后再合成(The program is a sub-band ambiguity function program, the main procedures is the broadband signal is divided into several sub-band, and then each sub-band fuzzy function, and finally resynthesis)
- 2013-04-12 10:55:14下载
- 积分：1
