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56
说明: 文主要目的是针对讯号频谱分析仪(Signal spectrum analyzer)做功能测试,以确定讯号频谱分析仪之各种运算功能正确,其中测试共
分为正弦与余弦波检查、反假象滤波器检查(Antialiasing Filter Check)、频率响应函数与相位角检查(FRF & Phase Check)、自身能量密度函
数检查(Power Spectrum Check)、动态范围检查(Dynamic Range Check)等五个项目的快速傅立叶转换检查(Fast Fourier Transform Check),并
对五个项目之测试原理、测试步骤及测试结果加以说明,提供频谱分析仪功能测试之正确方法,亦可作为自制频谱信号处理单元及频谱分
析程式之验证。(The main purpose of the text is for the signal spectrum analyzer (Signal spectrum analyzer) to do functional testing, to determine the signal spectrum analyzer features a variety of computing the right, which is divided into sine and cosine test wave inspection, anti-false filter inspection (Antialiasing Filter Check), the frequency response function and phase angle of inspection (FRF & Phase Check), its energy density function check (Power Spectrum Check), dynamic range checking (Dynamic Range Check) and other five projects FFT check (Fast Fourier Transform Check ), and principles of the five test items, test steps and test results to show that the spectrum analyzer to provide the proper testing method may be used as self-spectrum signal processing unit and the spectral analysis of the verification.)
- 2010-08-22 21:03:58下载
- 积分:1
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Matlab-high-level
一本用于matlab学习的电子书籍,对初学者有很大的帮助。(A book to learn matlab, electronic books, has a great help for beginners.
)
- 2013-11-18 14:45:47下载
- 积分:1
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2
说明: 以航标、测绘和通信为主的三大板块,是我国水上交通安全保障体系的重要组成部分,承担
着船舶航行的技术支持和航运经济的服务保障职能,对我国水上交通安全形势的持续稳定发挥了
不可替代的重要作用。从上世纪七、八十年代起,随着我国水上交通安全监督体制改革的逐步深
入,航标、测绘、通信等机构先后经历了数次体制改革、机构变化和职责调整,逐步建立了具有
中国特色的航海保障体系。
(To buoy, mapping and communication of the three main sections, is an important part of water transportation security system, technical support and bear the shipping service guarantee economic functions of the ship sailing on a steady water traffic safety situation in our country to play an irreplaceable important role. From the 1970s, since the 1980s, with the gradual deepening of China' s reform of water traffic safety supervision, aids to navigation, mapping, communications and other institutions have experienced several reforms, institutional change and responsibilities adjustment, gradually established with Chinese characteristics maritime security system.)
- 2014-09-09 17:15:34下载
- 积分:1
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MSP430-C
学习msp430系列单片机很好的编程材料,里面介绍了实用C 语言程序设计技巧。(Learn good programming msp430 MCU material, which describes a practical C language programming skills.)
- 2013-05-30 23:21:27下载
- 积分:1
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Real-Coded-Genetic-Algorithm-for-Robust
Power system stabilizers (PSS) are now routinely used
in the industry to damp out power system oscillations. In this paper,
real-coded genetic algorithm (RCGA) optimization technique is
applied to design robust power system stabilizer for both singlemachine
infinite-bus (SMIB) and multi-machine power system. The
design problem of the proposed controller is formulated as an
optimization problem and RCGA is employed to search for optimal
controller parameters. By minimizing the time-domain based
objective function, in which the deviation in the oscillatory rotor
speed of the generator is involved stability performance of the
system is improved. The non-linear simulation results are presented
under wide range of operating conditions disturbances at different
locations as well as for various fault clearing sequences to show the
effectiveness and robustness of the proposed controller and their
ability to provide efficient damping of low frequency oscillations.
- 2013-10-14 19:58:33下载
- 积分:1
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Phase-Difference-Correcting
基于全相位频谱分析的相位差频谱校正法.PDF(Phase Difference Correcting Spectrum Method Based on
All-phase Spectrum Analysis)
- 2013-10-16 16:17:13下载
- 积分:1
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sigmadelta
sigma delta modulator
- 2011-03-23 19:37:47下载
- 积分:1
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TEM
晚期瞬变电磁信号是大参数、 多频率、 且各频率分量未知的电磁信号, 特别在晚期还是强噪声背景下的微弱信号. 随机共振系统可以在极限信噪比的情况下提取微弱信号, 但仅适用于小参数、 单一频率或频率已知的高频信号的情况. 为此, 本文提出一种基于尺度变换的随机共振算法用于检测晚期瞬变电磁信号, 该方法充分利用了随机共振检测弱信号的优势, 通过引入尺度变换, 消除了随机共振系统对待测信号频率的限制, 在绝热近似理论下,实现了从强噪声中提取出微弱晚期瞬变电磁目标信号.(Transient Electromagnetic(TEM) signal is a large parameters, multi-frequency and unknown frequency with heavy noisy. Stochastic resonance (SR) can only be applied to small parameters, low-frequency or the known high-frequency signal detection. To solve this problem, a scale transformation for detecting TEM weak periodic signal of SR method is presented in this paper. The method is benefited from SR for detecting weak signals. )
- 2012-01-07 21:43:58下载
- 积分:1
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PageRankModel
PageRank模型在中文情感词极性判别中的应用(PageRank model in the Chinese emotional polarity discrimination in the application of the word)
- 2011-11-19 23:03:57下载
- 积分:1
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LC-filter-design-and-production
LC滤波器设计与制作LC滤波器设计与制作(LC filter design and production)
- 2011-05-24 12:51:58下载
- 积分:1