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adaptive-signal-arithmetic
- Some algorithms of variable step size LMS adaptive filtering are studied.The VS—LMS algorithm is improved. Another new non-linear function between肛and e(/ t)is established.The theoretic analysis and computer simulation results show that this algo
esprit_Algorithm_self
- ESPRIT算法是一种用于信号到来角(DOA)估计的直接求解方法,本程序中含有3种不同的算法均为自编-ESPRIT algorithm is used to signal the arrival angle (DOA) estimation of the direct methods, its performance at low signal to noise ratio (SNR) and signal correlation will seriously undermine
ResearchofcarriersynchronizationforlowSNRandhighdy
- 该载波同步方案可应用于低信噪比和高动态同存的条件下 接收机设计中,通过对该方案进行MATLAB 仿真,结果表明了该方案能有效地解决了载波快速捕获与精确跟踪的 问题。-The carrier synchronization scheme can be applied with low SNR and high dynamic receiver design under the conditions of existence, through the program MATLAB simul
MP_DOA
- 针对多径效应的影响,提出了一种基于矩阵束的MIMO 雷达低仰角快速估计方法。该方法同时考虑了发射多径信号和接收多径信号,采用单样本数信号矢量构造了一个前后向矩阵束,并利用两个酉矩阵对该矩阵束进行降维处理,最后采用广义特征值分解的总体最小二乘法来估计目标角度。算法不需要估计数据协方差矩阵,可在低 信噪比和单样本数情况下,有效地克服多径效应,实现同时多目标低仰角估计,相比最大似然算法,避免了谱峰搜索,计算量小。仿真结果验证了该算法的有效性。-To overcome the multipath e
pushang
- 实现低信噪比下的语音断电检测,谱熵端点检测,优于双门限端点检测法-Low-power voice SNR detection, spectral entropy endpoint detection, better than the two-endpoint detection threshold
Source-Localization-in-UWSAN
- 文章针对低信噪比下的水下目标定位问题,建立了水下无线传感器阵列网络,该结构包括多个分布式声传感器阵列,它适应于多模态信号处理,既可以利用目标的方位信息,又可以用能量信息。文中提出了用每个阵列接收到的信号能量作为参量完成目标定位并推导了基于能量的最大似然比目标定位方法。数值仿真表明:基于该结构的能量似然函数定位方法,可以有效估计目标的位置。并且比单阵元网络的定位性能和信息传输率上有了较大的提高, 尤其是在低信噪比下情况下,可以大大减小估计的方差。-With novel underwater wir
wenzheng_about_cs
- 一种基于改进压缩感知的低信噪比ISAR高分辨成像方法.pdf-A New Method of High Resolution ISAR Imaging under Low SNR Based on Improved Compressive Sensing
Particle_Detection_Cell
- 2011年IEEE T.的A New Framework for Particle Detection in Low-SNR Fluorescence Live-Cell Images and Its Application for Improved Particle Tracking,请大家分享-2011 IEEE T. A New Framework for Particle Detection in Low-SNR Fluorescence Live-Cell Images and Its
detection-and-tracking
- 雷达检测跟踪过程无缝连接过程。 雷达检测跟踪过程无缝连接过程。-Detection and tracking are normally considered separate processes. First the signal processing system associated with a sensor examines the signal to determine whether to call detection. Once detection is called, it is
ques7
- Write MATLAB code that will do the following. (a) Add Gaussian, Salt and Pepper and Speckle noise to image. (b) Perform median filtering to remove noise and determine SNR and PSNR value. (c) Perform average or low pass filtering to remove noise
pinlv
- 采用改进的RIFE算法,在低信噪比下也能较准确的估计出信号频率-RIFE using improved algorithms at low SNR can be more accurate estimate of the frequency of the signal
YUYIN
- 用matlab记录一段基带语音信号,采样频率设为44.1kHz。产生一个高斯白噪声 随机过程,并将噪声叠加在语音信号上(相当于将语音信号通过一个高斯信道)。 (1) 设定不同的噪声信噪比,画出并比较高斯信道接收端的信号时域波形,播 放接收信号。 (2) 由于语音信号的范围通常在3kHz以内,在接收端加载一个低通滤波器, 截止频率为3kHz,画出并比较滤波前后的信号时域波形,并播放滤波后 的信号。-Matlab record with some baseband voice
LFM_comp
- 雷达信号处理中的脉冲压缩,加入了低通滤波器,对脉压前后的信噪比进行分析-Radar signal processing pulse compression, adding a low-pass filter, SNR pulse pressure were analyzed before and after
Autocorrelation-Function-for-VAD
- 基于自相关函数最大值的语音端点检测算法,即使在较低信噪比情况下采用该算法仍能较准确地检测出语音信号的端点位置。-The maximum of autocorrelation function of sonant and sonata′s autocorrelation function characteristics after autocorrelation function filtered through a lowpass are studied,this method can dete
RA
- ra_snr_gui.m 作用:统计不同信噪比下,五种信号的峰值旁瓣比RA和低高频均值比RM,绘制结果,参考图3.11和3.12 DFCW_RA_SNR.m 作用:产生正交离散频率编码信号,并计算峰值旁瓣比RA和低高频均值比RM LFM_RA_SNR.m 作用:产生线性调频信号,并计算峰值旁瓣比RA和低高频均值比RM OFDMLFM_RA_SNR.m 作用:产生正交频分线性调频信号,并计算峰值旁瓣比RA和低高频均值比RM PC_RA_SNR.m 作用:产
bianbuchangLMS
- 变步长自适应滤波算法,对VS—LMS算法进行了改进,建立了步长因子μ与误差信号e(n)之间另一种新的非线性函数关系.理论分析和计算机仿真结果表明,该关系不仅具有原有算法收敛速度快的优点,而且在低信噪比环境下比原有算法具有更好的抗噪声性能.-The variable step size adaptive filtering algorithm is discussed, and the VS-LMS algorithm is improved. A new nonlinear function r
doa_signal
- 低信噪比条件下的高分辨DOA估计算法,提出一种基于多级维纳滤波器(MSWF)的信号波达方向(DOA)估计算法。通过测试信号子空间的估计值与噪声子空间的正交性实 现 DOA粗估计,通过测试MSWF 分解的互相关函数实现信号 DOA 的精估计。仿真实验表明,在低信噪比条件下,该算法比已有的子空 间类算法有更好的分辨率和误差性能。-Put forward a kind of multistage Wiener filter (MSWF) based on the signal directio
CS
- 采用DCS-SOMP算法对宽频信号进行重构 L1-SVD算法对低信噪比下的信号进行重构(Compressed sensing DCS-SOMP algorithm is used to reconstruct wideband signals L1-SVD algorithm for low SNR signal reconstruction)
testandtrain
- 利用三层卷积神经网络识别信号星座图,准确识别8psk,16psk,32psk,64qpsk四种调制方式,在低信噪比的情况下已然有良好的识别率。(The three layer convolution neural network is used to identify signal constellation, and accurately identify four modulation modes of 8PSK, 16PSK, 32psk and 64qpsk. It has a good
MFP_based_on_High_order_Statistics-master
- 浅层海洋环境由信源组成声源,海洋形成信道,和水听器阵列组成接收器。在这个传播模型中,信源,信道和接收信号这三者,通常能知二求一,具体应用诸如利用海洋环境参数和接收到的信号来定位声源,或者通过计算发射信号和接收信号之间的差异,反演海洋环境参数。 而在接收器方面,我们通过设置各向同性的水听器阵列。通过算法和处理器,我们便能量化模型,传统是处理器主要基于接收信号是高斯信号,而海洋中存在着大量的有色噪声。本课题的研究目的便是在前人的基础上,在海洋声层析成像的背景下,在信源与接收器阵列之间,引入信号的高阶