搜索资源列表
PSNR.rar
- 求数字图像处理后的评价参数(SNR)信噪比,matlab原程序!,After the digital image processing for the evaluation parameters (SNR) signal to noise ratio, matlab original program!
FIR.rar
- 用窗函数法hamming设计的FIR数字低通滤波器,能够实现心电信号中随机噪声的去除,Hamming window function method with the design of FIR digital low-pass filter, ECG can be achieved in the removal of random noise
matlab
- 利用matlab,对图像进行各种操作,如翻转、黑白处理,左右对称,以及噪声处理等-Using matlab, the image of various operations, such as flip, black and white processing, symmetrical, and noise processing
sasdw.rar
- 现有数字信号自动调制识别方法大多只适用于无记忆信号,如PSK、ASK、FSK信号等。将有记忆 信号(MSK信号)和无记忆信号一起考虑,提出了一种改进的数字信号自动识别方法。该方法采用信号的瞬时统 计量作为特征参数,采用多层神经网络作为分类器。计算机仿真表明:当噪声采用高斯白噪声,并且信噪比大于 l5 dB时,识别率高于96% ;当信噪比不低于l0 dB时,识别率不低于90%。,Existing digital signal automatic modulation recognition
awgn.rar
- 此程序为添加白噪声子程序,可以实现通信系统添加高斯白噪声,This procedure for adding white noise subroutine, you can achieve the communication system to add Gaussian white noise
PhaseNoise.rar
- 小数分频技术解决了锁相环频率合成器中的频率分辨率和转换时间的矛盾, 但是却引入了严重的相位噪声, 传统的相位补偿方法由于对Aö D 等数字器件的要求很高并具有滞后性实现难度较大。$2 调制器对噪声具有整形的功 能, 因而将多阶的$2 调制器用于小数分频合成器中可以很好地解决他的相位噪声的问题, 大大促进了小数分频技术的 发展和应用。文章最后给出了在GHz 量级上实现的这种新型小数分频合成器的应用电路, 并测得良好的相噪性能。,Fractional-N technology to s
Mod.rar
- 包含12个MATLAB函数,分别长生2PSK 4psk 8psk信号 和16QAM信号以及星座图 噪声程序等,12 MATLAB includes a function of longevity separately 2PSK 4psk 8psk signal and 16QAM signal constellation diagram, as well as procedures such as noise
cyclic2_am.rar
- 基于matlab,针对调幅AM、调频FM和调相PM信号,分析在不同的噪声环境,包括高斯白噪声、色噪声、非高斯噪声及正弦干扰中,各种信号的二阶循环谱。可根据需要改变程序中信号或噪声环境,分析结果。,Based on matlab, AM for AM, FM FM and PM phase modulation signals, analysis of noise in different environments, including Gaussian white noise, colored
esprit.rar
- 用esprit算法估计复正弦加白噪声的信号频率,f给出正弦信号的频率估计值,Esprit algorithm with an estimated increase in complex white noise sinusoidal signal frequency, f the frequency of sinusoidal signal given the estimated value of
matlab
- 此程序包含了音乐信号的截取,信号减抽样,噪声频谱的观察以及滤波器的设计等-This program includes the music signal interception, signal by sampling the noise spectrum and the filter design observation
adaptive--filter--noise-
- 这是一自适应噪声消除的matlab程序 算法使用的是NLMS 里面含有截取的噪声 有仿真图-This is an adaptive noise cancellation matlab program NLMS algorithm is used which contains a simulation of the interception of the noise figure
Houghtransformation.rar
- 将霍夫变换与最小二乘法相结合,研究对实验数据和图像处理中的二值边缘图进行直线拟合的方法。 首先,用霍夫变换剔除数据点集中的干扰点或噪声,并将分布在不同直线附近的点分离出来 然后,用最小二乘法 拟合各直线。该方法既解决了直接使用最小二乘法拟合时,拟合直线易受干扰点或噪声的影响和数据点分布在 多条直线附近而无法拟合的两个问题 同时也解决了直接使用霍夫变换时,拟合直线精度不高和直线段有效区间 不容易控制的问题。,The Hough transform and least squares me
matlab
- 双门限法检测离散语音端点,方法简单,易实现,常用语低噪环境-Double threshold discrete speech endpoint detection method is simple and easy to implement, low-noise environment commonly used terms
LDPC
- LDPC码性能的matlab仿真程序(BPSK调制,AWGN噪声)-Performance of LDPC code matlab simulation program (BPSK modulation, AWGN noise)
weinat
- 基于DD算法的先验信噪比估计的维纳语音降噪完整程序,包括语音分帧,动态信噪比估计,噪声估计更新和帧的重构。很完整。-DD algorithm based on a priori signal to noise ratio is estimated that the integrity of the process noise reduction Wiener voice, including voice sub-frame, dynamic signal to noise ratio estim
HHT
- 台湾国立中央大学开发的EMD-HHT算法,其中,EMD-HHT的创始人为该中心的主任.-EMD-HHT IS SPECIALLY DESIGNED FOR PROCESSING NONSTATIONARY AND NONLINEAR SIGNALS. IT CAN DECOMPSE SIGNALS AND THEN RECONSTRUCT SIGNALS ACCORDING TO SOME CRITERIA. AFTER THE PROCESS, SIGNALS WOULD HAVE HIGH
DSP2
- 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
speech_enhancement_matlab_by_lx
- 实验结果表明该算法对非冲击噪声效果良好。 lx_main为主程序,NS_lxwz为噪声估计模块,lxG_wz为增益估计模块,noise_sound为测试用含噪语音。 算法原理参见本人的文章《一种引入延迟的语音增强算法》。-Experimental results show that the algorithm for non-impulsive noise effect is good. lx_main the main program, NS_lxwz for the noise es
pinpu2
- 用Matlab产生正弦波,矩形波,以及白噪声信号,并显示各自时域波形图,FFT实践及频谱分析-Matlab generated by sine wave, square wave, and the white noise signal, and display their time-domain waveform, FFT spectrum analysis of practice and
hopfield
- 采用MATLAB实现Hopfield神经网络算法,并用其来进行字符识别。实验包括单个噪声字符的识别和多个噪声字符的识别两部分。并从这两方面对实验数据进行了分析与对比。-Hopfield neural network implementation using MATLAB algorithm, and use it to carry out character recognition. Experiments included a single noise, character recogniti