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gold
此程序可以产生golden序列,只要输入相应的特征多项式,就可以得到序列(This program can produce the golden sequence, as long as the input of the corresponding characteristic polynomial, you can get the sequence)
- 2012-06-07 12:24:57下载
- 积分:1
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matlab-raytrace
射线追踪,包含了起点和终点的射线函数,对于地震传播研究具有重要意义!(Raytracing in a v(z) world. The toolbox contains functions forshooting fans of rays and functions for tracing rays with specific start and end points. General multi-bounce rays with any number of mode conversions can be traced. Automatic routines for P-P and P-S primaries in shot-gather geometry are provided for convenience. Any recording geometry can be used but most functions
vectorize (e.g. are most efficient) for shot-gather geometry. Only
traveltimes and rayparameters are detemined, not amplitudes. In these routines, the velocity models should be considered as "background" models. This means that the depths at which flections and mode conversions occur are dependent of the depths given as layer boundaries in the velocity models. Velocity models are specified by a vector of velocities and a same-size vector of depths. The j th velocity is in effect from the j th to the j+1 th depth.
The bottom of the model is assumed at infinite depth. Thus v=5000
and z=0 specifies a cons)
- 2013-09-16 08:15:48下载
- 积分:1
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shuisheng
水声通信中的信号分析,传输,特性, 在多径下的数学仿真(Underwater acoustic communication signal analysis, transmission, characteristics, in the mathematical simulation of multipath)
- 2013-11-10 10:28:21下载
- 积分:1
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homework
该代码可用于对红外图像的高低温图分别进行一点校正和两点校正(This code can be used for infrared images were a little high and low figure correction and two-point calibration)
- 2015-01-10 11:13:47下载
- 积分:1
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unitpower
设置电容型脉冲电源的电容、电感、回路和负载的电感电阻等参数,可以计算出脉冲电源的输出电流。(The output current of the pulse power supply can be calculated by setting parameters such as capacitance, inductance, loop and load inductance resistance of the pulse power supply.)
- 2019-03-26 15:57:53下载
- 积分:1
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ofdm_channel
OFDM 信道估计的程序~~~~~~~~(OFDM channel estimation procedure ~~~~~~~~)
- 2020-11-11 19:29:44下载
- 积分:1
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1
说明: 机器人控制系统的全部matlab仿真程序,请笑纳!(The robot control system matlab simulation program, please accept my gift!)
- 2013-01-12 21:23:55下载
- 积分:1
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fangzhen
实验一 双极性矩形随机信号的归一化功率谱密度一
1.1 功率谱密度简介
平稳过程的任何一个非零样本函数的持续时间为无限长,显然都不满足绝对可积和总能量有限的条件。因此,它的傅里叶变换不存在即没有频谱函数。所以我们用功率谱密度来表述其频谱特性。
随机过程的任一实现是一个确定的功率型信号。而对于任意的确定功率信号f(t),它的功率谱密度为:
式中, 是f(t)的截短函数 对应的频谱函数。f(t)是平稳随机过程 的一个实现。而随机过程某一个实现的功率谱密度不能作为过程的功率谱密度。过程的功率谱密度应该看作是任一实现的功率谱密度的统计平均,即
虽然该式给出了平稳随机过程的功率谱密度,但我们通常都不利用这个式子来计算功率谱。我们知道,确知的非周期功率信号的自相关函数与功率谱密度是一对傅里叶变换。对于平稳随机过程,也有类似的关系,即
和
对于平稳随机过程我们通常先求出其自相关函数再利用上式求出其功率谱密度。
1.2 实验要求
1.了解平稳随机信号功率谱的概念及计算方法
2.仿真不同占空比,等概、非等概双极性矩形随机信号的归一化功率谱密度
3.分析不同信号所包含的频谱分量,有无直流分量和定时分量信息
(A pair of rectangular random experiment polarity signal sample return a nonzero function of any duration power spectral density of a 1.1 power spectral density of a stationary process Introduction of infinite length, apparently not satisfied absolutely integrable and the total energy of the limited conditions. Therefore, it is the Fourier transform of the spectrum that does not function does not exist. Therefore, we use the power spectral density to express their spectral characteristics. Any random process is a realization of a certain type signal power. For arbitrarily determined power signal f (t), its power spectral density is: wherein, is f (t) is a function corresponding to the truncated spectrum function. f (t) is a stationary random process of realization. The random process to achieve a certain power spectral density can not serve as the power spectral density of the process. Power spectral density process should be seen as a statistical average power spectral density of any r)
- 2014-11-30 20:39:29下载
- 积分:1
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mypcolorm
在MATLAB中绘制不连续的COLORBAR,并方便根据自己喜好调节色彩(In MATLAB does not draw a continuous COLORBAR, and easily adjust colors according to their own preferences)
- 2009-12-25 16:23:13下载
- 积分:1
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BitAllocation_opticalCom
Find the theorical capacity of an optical comb sistem
- 2013-10-17 23:28:41下载
- 积分:1