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[Other] net_B DL : 0: 模拟网络传输，使用循环冗余码校验并模拟噪声干扰-simulated network transmission, the use of cyclic redundancy check code and simulation noise
Date : 2008-10-13 Size : 2.51kb User : 任务
[Other] LDPC DL : 0: 用于LDPC编码译码的仿真实现。包括随机生成校验矩阵、由校验矩阵产生生成矩阵、编码、加随机噪声、译码等内容。原作者是老外，有部分中文注释。-LDPC coding for decoding Simulation. Check including random matrix generated by the calibration matrix generated generator matrix, coding, plus random noise, such as decoding. The original author is a foreigner, some Chinese Notes.
Date : 2008-10-13 Size : 57.66kb User : 别志松
[Other] matlabdsp DL : 0: 1．利用自相关函数法和周期图法实现随机信号的功率谱估计。 2．观察数据长度、自相关序列长度、信噪比、窗函数、平均次数等对谱估计的分辨率、稳定性、主瓣宽度和旁瓣效应的影响。 -1. The use of auto-correlation function method and cycle map Method random signal power spectrum estimation. 2. Observation data length, the length of autocorrelation sequence, the signal to noise ratio, window function, the average frequency of the spectrum estimation resolution, stability, width and the main valve Sidelobe effects.
Date : 2008-10-13 Size : 5.93kb User : 开心
[Other] EMIandEMS DL : 0: 几乎所有设备的传导干扰都包含共模噪音和差模噪音，开关电源也不例外。共模干扰是由于载流导体与大地之间的电位差产生的，其特点是两条线上的杂讯电压是同电位同向的；而差模干扰则是由于载流导体之间的电位差产生的，其特点是两条线上的杂讯电压是同电位反向的。-almost all the equipment includes EMI common mode noise and differential mode noise, switching power supply is no exception. Common mode noise is due to current carrying conductor between the earth and the potential of the poor, Its characteristics are two lines of noise voltage is the same with the potential to; while differential mode interference is the result of current-carrying conductor of the potential difference, Its characteristics are two lines of noise voltage potential is the reverse of the same.
Date : 2008-10-13 Size : 49.08kb User : 钱立志
[Other] beyesheji DL : 2: 以上是我大学毕业设计，《谐波小波与近似熵结合的噪声分析》希望对大家有用-above I graduated from university design, "Wavelet harmonic combination with the approximate entropy Noise Analysis" I hope useful for all
Date : 2008-10-13 Size : 1.36mb User : sun
[Other] pitch_period_estimation DL : 0: 使用vhdl编写的一段程序。主要功能是声音周期计算，以区别声音信号与噪音信号。-vhdl prepared by the use of a procedure. Its main function is voice cycle, in order to distinguish voice signal and the noise signal.
Date : 2008-10-13 Size : 10.33kb User : huan Ren
[Other] 16qam_ofdm_source_code DL : 0: 加性高斯白噪声信道下，OFDM系统仿真程序，调制方式为16QAM-additive white Gaussian noise channels, OFDM system simulation program, the modulation method for 16QAM
Date : 2008-10-13 Size : 1.74kb User : 张国梅
[Other] BAM_NN DL : 0: 用外积和法设计的权矩阵，不能保证p对模式全部正确的联想。若对记忆模式对加以限制（即要求p个记忆模式Xk是两两正交的），则用外积和法设计的BAM网具有较好的联想能力。在难以保证要识别的样本（或记忆模式）是正交的情况下，如何求权矩阵，并保证具有较好的联想能力？这个问题在用BAM网络实现对字符的识别程序仿真中得到体现。我们做过尝试，用伪逆法求权矩阵，虽然能对未加干扰的字符全部进行识别，但对加有噪声的字符识别效果很差。至于采用改变结构和其他算法的方法来求权矩阵，将是下一步要做的工作。-foreign plot and the design of the power matrix, p is no guarantee that all the correct pattern association. If memory model, the limit (that is, p-memory model Xk is orthogonal to the February 2), then foreign plot and design of the BAM network has good ability to think. It is difficult to ensure the samples to identify (or memory mode) is orthogonal circumstances, the right to seek ways matrix, and to ensure that the association has good ability? The problem with the BAM network of characters identification procedures simulation can be manifested. We did try to use pseudo - inverse matrix for the right, although they would not increase the interference of the characters in the identification of all, However, a pair of noise increases the effects of poor character recognition. As for the
Date : 2008-10-13 Size : 226.26kb User : 东方云
[Other] OFDM-bpsk DL : 0: 有关于OFDM系统的在AWGN信道下(BPSK调制)的信噪比分析.-on OFDM system in AWGN channel (BPSK modulation) signal-to-noise ratio analysis.
Date : 2008-10-13 Size : 4.23kb User : H
[Other] LOG_filter_distill_edge DL : 0: 数学形态学提供了一种以形态或集合论为基础对图像进行分析理解的工具。可以用来去除噪声、抽取骨架、插补、分割、多分辨率分析、匹配等。包括四个主要的算符：扩张（膨胀）○＋，腐蚀○－，开○，闭●- Mathematics morphology has provided one kind carries on the analysis understanding take the shape or the set theory as the foundation to the picture the tool. May use for to remove the noise, to extract the skeleton, inserts makes up, the division, the multi- resolution analysis, the match and so on. Including four main operators: The expansion (inflation) 鈼?+, corrodes 鈼?-, opens 鈼? shuts *
Date : 2008-10-13 Size : 231.55kb User : 陈朋
[Other] bpskgood DL : 0: bpsk调制解调M文件，在加入高斯白噪声的情况下，计算出误码率。-bpsk modulation and demodulation M documents in the Gaussian white noise to the situation, the calculated error rate.
Date : 2008-10-13 Size : 936byte User : leekm
[Other] fft_demodule DL : 0: 该程序用以对2FSK信号调制解调的仿真程序，信道为高斯白噪声，采用FFT方法对其解调-procedures for the right 2FSK signal modulation and demodulation of the simulation program, channel for white Gaussian noise, FFT method demodulation
Date : 2008-10-13 Size : 1.64kb User : 孙晓东
[Other] real_noise DL : 0: Adds noise to processes x1(n) and x2(n), at SNR=snr, using seeds s1 and s2.-Adds noise to processes x1 (n) and x2 (n), at SNR = snr, using seeds s1 and s2.
Date : 2008-10-13 Size : 978byte User : 王海霞
[Other] tu_xiang_de_pinghua_quzao_ruihua DL : 0: 很经典的图象处理源代码,图象的平滑(去噪声)、锐化-classic image processing source code, image smoothing (to noise), Unsharp
Date : 2008-10-13 Size : 25.01kb User : CHENPEI
[Other] dsphomework1 DL : 0: 数字信号处理的应用之一是从含有加性噪声的信号中去除噪声。现有被噪声污染的信号x[k]=s[k]+d[k],式中：为原始信号d[k]为均匀分布的白噪声。（1）分别产生50点的序列s[k]和白噪声序列d[k],将二者叠加生成x[k],并在同一张图上绘出x0[k],d[k]和x[k]的序列波形。（2）均值滤波可以有效去除叠加在低频信号上的噪声。已知3点滑动平均数字滤波器的单位脉冲响应为h[k]=[1,1,1 k=0,1,2],计算y[k]=x[k]*h[k],在同一张图上绘出前50点y[k],s[k]和x[k]的波形，比较序列y[k]和s[k]。 -digital signal processing applications from one containing additive noise signal denoising. Existing noise pollution was a signal x [k] = s [k] d [k], where : of the original signal d [k] uniform distribution of white noise. (1) have 50 points each sequence s [k] and white noise sequence d [k] superposition of the two generation x [k] and the same is likely to draw a map x0 [k] d [k] and x [k] waveform sequence. (2) mean filter can effectively remove superimposed on the low-frequency noise on the signal. 3:00 known moving average digital filter unit for pulse response h [k] = [k = 0,1,2 1,1,1] Calculation y [k] = x [k] * h [k], the same is likely to draw a map before 50 y [k] s [k] and x [k] waveform sequence comparison y [k] s and [k].
Date : 2008-10-13 Size : 28.59kb User : 魏臻
[Other] jiangzao DL : 0: 这是一个有关语音信号中的噪声降噪的原代码，结果可能有些不好-This is one of the voice signal noise of the original noise code, the result may be some bad
Date : 2008-10-13 Size : 2.91kb User : feipo
[Other] hardware_design_manual DL : 0: 硬件设计指南(PDF格式)，主要包括：Low Voltage Interfaces；Grounding in Mixed Signal Systems；Digital Isolation Techniques； Power Supply Noise Reduction and Filtering； Dealing with High Speed Logic-Hardware Design Guide (PDF format), including : Low Voltage Interfaces; Grounding in Mixed Signal Systems; Digital Isolation Techniques; Power Supply Noise Reduction and Filtering; Dealing with High Speed Logic
Date : 2008-10-13 Size : 440.29kb User : wangtian
[Other] Signal_and_noise_stimation_from_seismic_reflection DL : 0: 这是一个地震反射数据分析和处理的文章.尤其是对于噪声的处理内容相当丰富,不仅仅增加地质方面的知识,更重要的是可以学到很多数据处理和小波分析方面的知识.-This is a seismic reflection data analysis and processing of the article. Especially for the handling of noise as quite rich, is not only increasing geological knowledge, the more important it is to learn a lot of data processing and wavelet analysis knowledge.
Date : 2008-10-13 Size : 3.56mb User : 单昊
[Other] DTMFproducing DL : 0: dtmf源代码，里面有信号产生，加噪，传输，接受，采样，判决等-Pages source code, with a signal generator, plus noise, transmission, acceptance sampling, judgments.
Date : 2008-10-13 Size : 1.12kb User : 文字
[Other] HtmlAnylse DL : 0: 网页是组成互联网的基本数据单元，是各种面向互联网的应用系统最原始的数据源。网页内部含有大量噪音信息，如何从网页中有效地提取有价值的内容成为影响数据处理效果的关键。网页正文提取指的是从原始网页中精确地提取出正文文本，比如提取新闻网页中的报道内容。能否高效地提取出网页的正文，是很多互联网应用系统如搜索引擎、新闻资讯系统等面临的一个重要问题。由于网页本身的无结构化的特点，通常采用的正文提取方法是针对目标网页的特点人工制定抽取模板，这类方法的优点是抽取精确，但其致命的缺点是模板建立和维护的工作量巨大，通用性和灵活性很差。通过分析网页内部的链接分布特点，我们研制出了一种基于网页上下文链接密度的混合型正文判定算法，能够有效地解决上述通用提取方法的缺点，其最大特点是无须模板支持，因此不需要人工制定抽取和维护模板，将人工参与的工作量降到0。另外该方法具有很好的提取效果，对新闻网页的测试表明，该方法的准确率和召回率都在98％以上。 -Internet website is composed of the basic data units, is the Internet-oriented application system the most primitive data sources. Internal website contains a lot of noise information, from the website how to effectively extract the valuable contents of the data-processing become the key. Website text refers to the extraction from the original website accurately extracted the body text, such as news from the website as reporting. Can efficient extraction of the body of the website is that many Internet applications such as search engines, News and other information systems facing an important issue. As the website itself without structural characteristics, commonly used text extraction method is targeted website features developed from artificial template The advantages of these methods is
Date : 2008-10-13 Size : 5.06mb User : 谷穗

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