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FrequencyDomainAnalysisOfTheSystem
信号频谱分析
1. 观测已知方波信号、正弦波信号的频谱
分析频率为4KHz、8KHz的占空比为50 的方波信号、正弦波信号的频谱。记录所得频谱图。
观测实时模拟信号（语音）的频谱
用音频设备采集一段语音，将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的，应把它分段分析，而且实际运用中的数字信号处理的FFT的点数是有限的，一般只能达到千点。用傅里叶反变换IFFT，从频域恢复信号。画出频谱图和语音波形图(Signal spectrum analysis 1. Observing a known square-wave signal, sine wave signal frequency spectrum analysis 4KHz, 8KHz for the 50 duty cycle square wave signal, sine wave signal frequency spectrum. The recorded frequency spectrum. Observing real-time analog signal (voice) of the spectrum collected with the audio devices section of voice, voice saved as. Wav format. Wav file of the sub-Fourier transform analysis to make. Speech is divided into syllables, it should be sub-analysis, and practical application of digital signal processing of the FFT points is limited, generally only reach 1000 points. Fourier inverse transform IFFT, to restore the signal from the frequency domain. Draw maps and voice waveform spectrum)
- 2010-01-27 16:23:22下载
- 积分：1
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Read-and-Write-Excel-File
在matlab环境下对EXCEL文件进行读写操作，适合初学者学习借鉴。(In the matlab environment EXCEL file read and write operations, suitable for beginners to learn.)
- 2013-12-23 20:11:08下载
- 积分：1
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jaimen_v58
一个很有用的程序，ML法能够很好的估计信号的信噪比,最大似然（ML）准则和最大后验概率（MAP）准则。( A very useful program, ML estimation method can be a good signal to noise ratio, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion.)
- 2016-11-10 21:27:52下载
- 积分：1
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虚拟力的无线传感网络覆盖，添加噪声处理，双向PCS控制仿真，对于初学matlab的同学会有帮助，光纤陀螺输出误差的allan方差分析，进行波形数据分析。
虚拟力的无线传感网络覆盖，添加噪声处理，双向PCS控制仿真，对于初学matlab的同学会有帮助，光纤陀螺输出误差的allan方差分析，进行波形数据分析。
- 2022-11-07 13:45:03下载
- 积分：1
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jiemian1
利用matlab语言编写了可设置函数曲线图视角的用户界面的源程序。
(Use of matlab language that can be set up function curves from the Perspective of the user interface of the source.)
- 2009-02-19 18:26:25下载
- 积分：1
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1
说明： 本文主要研究了，以京沪高速为背景以客车时间表为基础之上安排货车的模型。从车站的战略发展、资源利用、时间安排和资源策划等综合考虑，需要对客车的时间安排进行考虑。从而设计有效而可行的安排货车运行模型.(This paper studies, the background to the Beijing-Shanghai high-speed bus schedule to arrange for the vehicle based on the model. From the station' s strategic development, resource utilization, timing and resource planning, such as considering the need for Airbus to consider the timing. In order to design an effective and workable arrangements to run the model vehicle.)
- 2009-04-20 08:34:01下载
- 积分：1
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Kth_number
划分树求区间K小数的Pascal源代码,
其建树复杂度为O（nlogn）,
回答询问为O（logn)(A kind of tree to answer the kth smallest
number in an interval. )
- 2011-01-15 10:23:59下载
- 积分：1
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logistic
matlab解决logistic模型代码(matlab code to solve logistic model)
- 2020-10-14 09:07:30下载
- 积分：1
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mask_filter
mascara binaria y filtrado
- 2013-10-19 00:50:22下载
- 积分：1
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matlab-d-
matlab遗传算法代码，非常不错，值得看看(matlab genetic algorithm code, very good, worth a look)
- 2013-11-15 16:36:53下载
- 积分：1
