搜索资源列表
uvsegment
- 用信息熵进行语音信号声韵分割,尤其适合低信噪比的语音。-with information entropy voice signal eloquence and segmentation, especially for low SNR voice.
xunhuan
- 调制信号的识别,可以通过各种调制的功率谱不同来识别,但这种方法在小信噪比下,性能不好,通过循环功率谱来识别,仿真表明在小信噪比下有很好的性能-modulation signal identification, can be modulated through the power spectrum to identify different, but this approach in a small signal to noise ratio, poor performance, cycle po
peaches
- 一段语音,分别在白噪声、粉色噪声、工厂噪声、冲击噪声和信噪比变化很大的语音,用于检验语音端点、语音增强的方法的对与错。-a voice, in white noise, pink noise, factory noise, the impact of noise and signal-to-noise ratio of the great changes of voice, used to test the voice endpoint, speech enhancement of the ri
xiaoboyuyinduandianjianxe
- 语音端点检测是语音识别中至关重要的技术。无论军用还是民用,语音端点检测都有着广泛的应用。在低信噪比的环境中进行精确的端点检测比较困难,尤其是在无声段或者发音前后-voice activity detection is critical speech recognition technologies. Whether military or civilian, voice endpoint detection have broad application. Low signal-to-noise
LSAgai
- 对数谱最小均方误差语音增强算法(LSA-MMSE),对加入有音无音判决进一步提高信噪比,消噪效果非常好。适合各种平稳噪声。-right spectrum minimum mean square error speech enhancement algorithm (LSA - MMSE). sound right to a sound judgment without further improve signal-to-noise ratio, denoising effect was very
LSAcausal
- 语音增强算法,基于LsA-MMSE方法,并对其先验信噪比估计器进行了修改,具体过程参看Isal的论文。语音间隙间的音乐噪声也消除了。-speech enhancement algorithms, based on LsA - MMSE, and signal-to-noise ratio of its prior estimate for the changes, See specific process Isal theses. Voice gap between the music also
addno
- 给信号加入噪声时,信噪比的控制小程序,基于matlab。-to signal to noise, the signal-to-noise ratio of the control of small procedures, based on Matlab.
mybss
- 基于最大信噪比的语音分离程序,有需要的朋友可以借鉴
QRS_CHAFEN_MATLAB
- 基于MATLAB写的调试通过的QRS检测算法,具有信噪比估计、阀值预测的斜率检测算法。
Burg
- 用burg算法实现功率谱的估计,可以改变信噪比SNR,阶次P,可以分析分辨率
1-4
- 为均衡带限信号所引起失真的横向或格型自适应均衡器(其中横向FIR系统长M=11), 系统输入是取值为±1的随机序列 ,其均值为零;参考信号 ;信道具有脉冲响应: 式中w用来控制信道的幅度失真(w = 2~4,例如,取w = 2.9,3.1,3.3,3.5等),而且信道受到均值为零、方差为 (例如,取 ,相当于信噪比为30dB)的高斯白噪声 的干扰。试比较基于下列五种算法自适应均衡器在不同信道失真、不同噪声干扰下的收敛情况(对应于每一种情况,在同一坐标下画出其学习曲线): 横向/格
MmseCohen
- 介绍Cohen用先验信噪比语音增强的方法
CEinCommun
- 各种信噪比估计算法,包括ls,lms,qam,噪声统计等-A variety of SNR estimation algorithms, including ls, lms, qam, noise statistics, etc.
yuzhiwavefilter
- 利用MATLAB实现峰值信噪比的公式,很好用。精确的验证过 -PSNR formula
test
- 自己编写的语音信号的采集,fft变换(两种),以及信噪比的计算!希望对大家有所帮助!-I have written the speech signal acquisition, fft transform (two kinds), and the calculation of signal to noise ratio! We want to help!
signal_noise_SNR
- 介绍对语音信号叠加白噪声或指定的噪声,满足一定的信噪比,又提供了检验带噪语音信噪比的函数。-Introduction of the voice signal superimposed noise, white noise or designated to meet a certain signal to noise ratio, but also provides a test signal to noise ratio of Noisy Speech function.
endpoint_detection_with_noise
- 提出了一种基于时频方差和的语音端点检测算法。实验证明该算法能够在低信噪比的情况下,准确地检测出语音信号-Proposed based on time-frequency variance and Speech Endpoint Detection Algorithm. Experiments show that the algorithm at low SNR cases, accurately detect the speech signal
snr
- 计算语音、音频信号的信噪比程序(包含音频样本文件)-Calculation of voice, audio program signal to noise ratio (including the audio sample file)
labview程序
- labview对信号fft变换及信噪比分析(Signal FFT transform and signal to noise ratio analysis of LabVIEW)
基于高斯白噪声信道BPSK调制下的误码率与信噪比的关系
- MATLAB代码 公式推导的时候信噪比的单位是B,目的是为了推导的方便,代码在写的时候需要记得换算。 单个符号的比特数跟信噪比有关,snr越大,其越大。 由于符号1被误认为是0的概率与符号0被误认为是1的概率是一样的,因此无论蒙特卡洛的仿真次数是多少,误码率的理论计算值 与蒙特卡洛仿真值永远一样!(条件是高斯白噪声为0均值的) 为了让实际结果与理论值完全一样,高斯白噪声的概率密度函数中的均值需要为0!但是这个条件在实际生活中无法满足。 环境是不能改变的,因此噪声的均值是无法改变的。
