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用短时平均能量和短时平均过零率双门限检测VAD
- 用短时平均能量和过零率的特征参数对语音信号进行端点检测， 以消除静默帧和噪声帧的干扰
参数估计
- 微弱信号检测，用于预处理接收信号，可分为高频与低频段(Dection of small target and pretreatment of received signals which can be divided into high frequency and low frequency.)
Square
- 编写MATLAB程序，讨论在 ??_0=5×〖10〗^(?5)的加性高斯白噪声环境中，利用匹配滤波器检测幅度为2，宽度为1ms的方波信号的情况(考虑取样时间为Ts=0.1ms)，测量匹配滤波器输入信号中心处与输出信号最佳取样处的SNR，绘出信号波形。(Write a MATLAB program, "10" discussed in the _0=5 * ^ (- 5) and Gauss white noise environment, using the matching
MMSE
- 通信系统中会设计到信号检测这一步，本次上传的是信号检测MMSE算法，(signal detection use MMSE)
ROCcurve
- 计算信号检测时的ROC曲线,计算结果比较准确，完全符合要求。(Computed the ROC curves.)
recigtry
- 信号检测理论上机实验报告(包含源码),关于一阶自回归信号模型()
Weak signal detection
- 针对强噪声背景中弱信号检测问题，在传统检测方法基础上，提出了基于联合去噪和频率调制的微弱信号检测方法。搭建自相关和小波阈值变换联合去噪系统，极大程度抑制了噪声对检测结果的不利影响。利用频率可调标准信号调制待测信号频率，使得被测信号与检测系统策动力信号的频率差满足检测条件，打破了利用Ｄｕｆｆｉｎｇ 振子检测系统只能检测与系统策动力频率相近信号的限制。(In order to solve the problem of weak signal detection in strong noise bac
vad
- 自适应端点检测。那么什么是自适应端点检测呢？也就是采集声音信号的时候，开始说话到说话结束，我们把这一段声音信号采集下来进行处理。(Adaptive endpoint detection. So what is adaptive endpoint detection? That is, when the sound signal acquisition, began to speak to the end of the speech, we collected this sound signal
yashar-joe_2.pdfyashar-joe_2
- ofdm系统下的差分相干检测，具体解释了差分相干检测系统(Differential coherent detection in OFDM system, which specifically explains the differential coherent detection system)
plsapplication
- 在分光光度法分析高浓度锌溶液中痕量钴离子浓度的过程中，由于基底离子Zn(II)与待测离子Co(II)化学性质相近，且基底离子浓度过高，导致Co(II)的光谱信号与Zn(II)的光谱信号重叠，溶液的吸光度与浓度在部分波长段呈现很强的非线性和不佳的加和性，因此无法通过全波段信息实现痕量Co(II)浓度的检测。本文提出了间隔-相关系数法对溶液的紫外可见光光谱进行波长点的筛选(In the process of spectrophotometric analysis of trace cobalt io
signalWhitened
- 信号进行空间白化，再进行目标方位估计，提高估计精度(The signal is whitened in space, then the direction of the target is estimated, and the accuracy of the estimation is improved.)
单元平均CFAR检测实例过程
- 《雷达信号处理基础》，P256页，图7.4单元平均CFAR检测的实例过程，噪声功率为20DB("Radar signal processing foundation", P256 page, figure 7.4 unit average CFAR detection example process, the noise power is 20DB)
voice_wav_frequency
- matlab语音信号分析时域频域，加窗，降噪滤波，端点检测，时域特征和频域特征提取(Matlab speech signal analysis in time domain, frequency domain, windowing, denoising, filtering, endpoint detection, time domain feature and frequency domain feature extraction.)
BAYES
- 针对高斯白噪声中二元确知信号，仿真信号检测过程，分析检测门限、噪声的方差及取样间隔对检测的影响检测。(For binary Gaussian white noise signal, simulation signal detection process, analysis of detection threshold, noise variance and sampling interval on the detection of the impact of detection.)
Bayes
- 贝叶斯准则仿真，信号检测与估值，统计信号处理。(bayes criterion simulation)
sm-matlab-2ed
- 用于信号检测，功率谱估计，可以进行信号检测等其他方面的应用。(It is used for signal detection, power spectrum estimation, signal detection and other applications.)
mengtekaluo
- 基于蒙特卡洛仿真仿真的高斯白噪声中确知信号的检测性能曲线(Detection performance curve of Gauss white noise based on Monte Carlo simulation)
kk764
- 包括广义互相关函数GCC时延估计，含噪脉冲信号进行相关检测,阐述了负荷预测的应用研究。( Including the generalized cross-correlation function GCC time delay estimation, Noisy pulse correlation detection signal, It describes the application of load forecasting.)
chirp信号脉冲压缩、时域及频域加窗和cfar处理
- 对chirp信号进行脉冲压缩，得到静止目标的距离。通过时域及频域加窗降低信号的旁瓣，通过CA-CFAR检测，更好的得到目标信息。
wavelet_VAD
- 利用小波系数分解进行语音端点检测，可直接运行得到结果(Speech endpoint detection using wavelet coefficients decomposition can directly run to get the results.)