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2
防雷工程是一项系统工程，要求将外部防雷装置和内部防雷装置统一考虑，着眼于全方位的雷电综合防护，把机房建筑物的防雷、雷电电磁脉冲（LEMP）防护、设备防雷、电源系统防雷、线路防雷、接地系统、保护装置等综合因素考虑在内。任何方面的遗漏带来的危害都是不能(Mine is a systems engineering project, requiring the external and internal lightning protection lightning protection devices to consider a unified, integrated focus on the full range of lightning protection, lightning protection of buildings to the engine room, lightning electromagnetic pulse (LEMP) protection, equipment, anti- Thunder, lightning protection power system, line lightning protection, grounding systems, protective devices and other comprehensive factors into account. Omission of any harm is not)
- 2010-10-21 16:20:45下载
- 积分：1
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cycliostrationarity
产生循环平稳信号的matlab！！！！！！！！！！！！！！！！！！！！！！！！！！(Cyclostationary signals generated matlab! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !)
- 2010-10-30 11:21:00下载
- 积分：1
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averageblurofsaltpeppernoise
THIS CODE REMOVES "SALT AND PEPPER NOISE" BY AVERAGING.MAY HELP BEGINNERS TO UNDERSTAND THE COLOR PICTURE AND REMOVING THE NOISE IN GREY IMAGE OUTPUT OF GIVEN COLOR IMAGE.
- 2010-03-08 00:49:59下载
- 积分：1
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dingjie
prony算法的定阶程序，很有用的，适合搞prony拟合相关算法的研究人员参考(a precess of order deceside of prony)
- 2011-06-24 20:51:56下载
- 积分：1
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nf_ne
上传的是个人在学习中编写的关于行星齿轮的一个源代码(Upload individuals in the study prepared by the planetary gear of a source code)
- 2020-10-08 09:57:36下载
- 积分：1
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向量机的matlab实例 task4_1
支持向量机的matlab实例，对学习支持向量机有很大的帮助。(The matlab example of the support vector machine is of great help to the learning support vector machine.)
- 2020-06-22 03:00:01下载
- 积分：1
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Untitled
实现基本的PCM编译码功能，函数简单，程序可行(PCM encoding and decoding functions to achieve the basic function is simple, practical procedures)
- 2010-11-24 17:48:14下载
- 积分：1
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fractal
常用分形matlab程序（经测试）具体为几种常见混沌时间序列matlab实现(Commonly used fractal matlab program (tested) specific for several common realization of chaotic time series matlab)
- 2010-01-13 15:59:03下载
- 积分：1
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03607_28
DFT进行频谱分析时的三种现象
1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。
改用其他窗函数（非矩形）改善泄漏。
3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分：1
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delay_estimator_1
利用差拍法求宽带阵列通道延时，可用于宽带阵列通道延时测量以及校正。(Computing the channel delay of broadband array by using beat method, which can be used for wideband channel delay measurement and calibration.)
- 2013-09-26 10:35:26下载
- 积分：1
