Description: 信号生成:可以生成各种类型的信号包括正弦波、方波、三角波、扫频信号、调幅波、白噪声、窄带随机信号等-signal generation : can generate all types of signals, including sine, square, triangle wave, sweep signal amplitude wave, white noise, narrowband random signals Platform: |
Size: 368971 |
Author:唐传兵 |
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Description: 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]. Platform: |
Size: 29280 |
Author:魏臻 |
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Description: DSP中输入信号的生成过程。 conio.cpp实现X(n)信号，其中有两个频率分量的正弦信号（正弦计算由sinwn.cpp实现），频率可变，这里取140Hz和70Hz。 考虑了高斯白噪声，由gauss.cpp实现。 最后该信号共产生2000个点，最后的信号点存储于 “x.txt”文本中。-DSP input signal generation process. Conio.cpp achieve X (n) signal, in which there are two components of the frequency sinusoidal signals (sine calculation sinwn.cpp achieved), variable frequency, here and frequencies from 140Hz. Consider a Gaussian white noise from gauss.cpp achieve. Finally, the signal generated 2,000 points, the final point signal storage in the "x.txt" text. Platform: |
Size: 1662 |
Author:feide |
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Description: 信号生成:可以生成各种类型的信号包括正弦波、方波、三角波、扫频信号、调幅波、白噪声、窄带随机信号等-signal generation : can generate all types of signals, including sine, square, triangle wave, sweep signal amplitude wave, white noise, narrowband random signals Platform: |
Size: 368640 |
Author: |
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Description: 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]. Platform: |
Size: 28672 |
Author:魏臻 |
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Description: 伪随机码发生器的VHDL实现
随着通信理论的发展，早在20世纪40年代，香农就曾指出，在某些情况下，为了实现最有效的通信，应采用具有白噪声的统计特性的信号。另外，为了实现高可靠的保密通信，也希望利用随机噪声。然而，利用随机噪声最大困难是它难以重复产生和处理。直到60年代，伪随机噪声的出现才使这一难题得到解决-Pseudo-random code generator for VHDL realize communication with the development of the theory, as early as the 20th century, 40 years, Shannon has pointed out that in some cases, in order to realize the most effective communications, should be used with the statistical properties of white noise signal . In addition, in order to realize highly reliable secure communication, but also wish to take advantage of random noise. However, the use of random noise the greatest difficulty is that it difficult to repeat the generation and treatment. Until 60 years, the emergence of pseudo-random noise so that this problem only be solved Platform: |
Size: 217088 |
Author:张之晗 |
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Description: DSB-SC信号的生成与解调
1) 用离散（DSP）的方法生成DSB信号
2) 载波频率为150KHz，音频为500Hz和2000Hz的混合音。
3) 加入高斯白噪声
（4） 语音信号
的传输。
改变抽样频率和量化台阶大小，观察重建信号以及量化噪声信号的波形；对于语音信号主观评价声音质量的变化。
-DSB-SC signal generation and demodulation 1) Discrete (DSP) methods to generate DSB signal 2) the carrier frequency to 150KHz, audio 500Hz and 2000Hz for the mixed tone. 3) by adding white Gaussian noise (4) transmission of voice signals. Change the sampling frequency and quantization step size, to observe the reconstruction of signal and quantization noise signal waveform for subjective evaluation of the speech signal changes in sound quality. Platform: |
Size: 28672 |
Author:Ryan |
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Description: 系统辨识的实验代码，包括产生白噪声程序、各种最小二乘法程序等等，包含所有源代码，用C++写的。-Experimental system identification code, including the generation of white noise process, a variety of least squares procedures, etc., including all source code, using C++ written in. Platform: |
Size: 452608 |
Author:sxd |
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Description: 无线通信中各种常用信号产生程序，里面具有BPSK，MFSK，QPSK，白噪声等波形产生程序，声称的波形何以存储为Wav文件或直接输出到声卡！适合短波数据通信编程参考！-Wireless communication signals in a variety of commonly used procedures, which have a BPSK, MFSK, QPSK, of white noise such as waveform generation process, claiming that how the waveform storage for the Wav files or directly output to the sound card! Data communications for short-wave programming reference! Platform: |
Size: 128000 |
Author:田野 |
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Description: 【1】随机序列产生程序
【2】白噪声产生程序
【3】M序列产生程序
【4】二阶系统一次性完成最小二乘辨识程序
【5】实际压力系统的最小二乘辨识程序
【6】递推的最小二乘辨识程序
【7】增广的最小二乘辨识程序
【8】梯度校正的最小二乘辨识程序
【9】递推的极大似然辨识程序
【10】Bayes辨识程序
【11】改进的神经网络MBP算法对噪声系统辨识程序
【12】多维非线性函数辨识程序的Matlab程序
【13】模糊神经网络解耦Matlab程序
【14】F-检验法部分程序
-【1】 【2-random sequence generation process white noise generation process】 【3】 M sequence generation process 【4】 to complete a one-time second-order system least-squares identification procedure 【5】 actual pressure system least-squares identification procedure 【6】 Delivery Push the least squares identification procedure augmented 【7】 【8】 least square identification procedures for gradient correction least square identification procedure 【9】 Recursive maximum likelihood identification procedures 【10】 【11】 Bayes identification procedures Improved neural network algorithm MBP noise system identification procedure 【12】 multi-dimensional nonlinear function identification program Matlab program 【13】 fuzzy neural network decoupling Matlab program 【14】 F-test part of the program Platform: |
Size: 7168 |
Author:jshuska |
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Description: 在自适应控制中，用Matlab算法实现白噪声及有色噪声序列的产生-In adaptive control, white noise with Matlab algorithm and the generation of colored noise sequence Platform: |
Size: 18432 |
Author:xiajulong |
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Description: 仿真对象如下：
其中， v( k )为服从N (0,1) 分布的白噪声。输入信号u ( k) 采用M 序列，幅度为 1。M 序列由 9 级移位寄存器产生，x(i)=x(i-4)⊕x(i-9)。
选择如下辨识模型：
加权阵取Λ = I。
衰减因子β = 0.98，数据长度 L = 402。
辨识结果与理论值比较，基本相同。辨识结果可信
-he simulation object is as follows: among them, v (k) to obey N (0, 1) distribution of white noise. The input signal u (k) using M sequence, amplitude is 1. M sequence by 9 level shift register generation, x (I) = x (I- 4) ⊕ x (I- 9). Choose the identification model: weighted array take Λ = I. Attenuation factor β = 0.98, the data length L = 402. Identify the theoretical calculation and comparison, basically the same. Identification results are reliable Platform: |
Size: 1024 |
Author:张鹏 |
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Description: This function generates an Additive White Gaussian Noise (AWGN) sample at every call. Its beauty lies in its simplicity! The generated sample set will have zero mean and a standard deviation of 1. Therefore, one can simply scale the output samples by a different standard deviation to generate different noise profiles. To do this scaling, simply multiply the sample with the standard deviation of your choice.
This is a very versatile function that can be used in communication system simulations and random number generation in various applications. I have used it in the past while working with channel encoder and decoder simulators. Platform: |
Size: 1024 |
Author:明 |
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Description: matlab，karman谱，利用白噪声特性和ARMR模型，通过求解模型参数生成随机风速-Matlab, Karman spectrum, the characteristics of white noise and ARMR model, the generation of random wind velocity by solving the model parameters Platform: |
Size: 36864 |
Author:谭世华 |
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Description: 白噪声生成程序，利用限定频率段的功率谱反向生成。-White noise generator, utilizing limited frequency band of the power spectrum of the reverse generation. Platform: |
Size: 1024 |
Author:王 |
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Description: 基于MATLAB GUI 设计的数字信号处理系统，可以实现基本的信号生成，信号分析和信号滤波以及简单的语音信号处理等功能。其中信号生成模块可实现正弦波、方波、三角波、高斯白噪声、chrip信号的生成和叠加；信号分析模块支持基本的傅氏变换下的频域分析功能；信号滤波模块可以实现数字低通、高通、带通、带阻下的切比雪夫、巴特沃思、椭圆滤波器的设计和滤波处理；语音信号处理模块可以实现音频文件的读取、播放、叠加噪声、滤波等功能。(Based on MATLAB GUI design of digital signal processing system, you can achieve the basic signal generation, signal analysis and signal filtering, and simple voice signal processing and other functions. The signal generating module can realize the sine wave, triangle wave, Fang Bo, Gauss, chrip generation and superposition of white noise signal; signal analysis module supports the analysis function of frequency domain Fourier transform basic conditions; signal filtering module can realize digital low-pass, high pass, band pass, band stop, Butterworth, the Chebyshev elliptic filter design filtering and processing of speech signal processing; module can realize audio files to read, play, adding noise, filtering and other functions.) Platform: |
Size: 324608 |
Author:庭有枇杷树
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Description: 使用VC实现高斯白噪声的产生，对于仿真模拟有帮助。(The use of VC to achieve the generation of Gauss white noise, for simulation help.) Platform: |
Size: 2507776 |
Author:张天空 |
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Search - generation of white noise