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Description: 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。-Written based on MATLAB debugging through the QRS detection algorithm, with SNR estimation, prediction of the slope threshold detection algorithm.
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Size: 81920 |
Author: 陈根深 |
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Description: 信号与信息处理——阵列信号处理DOA估计的matlab算法，这是线性调频信号的稀疏分解算法，wigner_will分布-Signal and information processing- array signal processing matlab algorithm for DOA estimation, which is a linear FM signal sparse decomposition algorithm, wigner_will distribution
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Size: 1024 |
Author: 彭华 |
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Description: SPEECH ENHANCEMENT BASED ON WAVELET DENOISING
Abstract: - Noise is an unwanted and inevitable interference in any form of communication. It is
non-informative and plays the role of sucking the intelligence of the original signal. Any kind of
processing of the signal contributes to the noise addition. A signal traveling through the channel
also gathers lots of noise. It degrades the quality of the information signal. The effect of noise
could be reduced only at the cost of the bandwidth of the channel which is again undesired as
bandwidth is a precious resource. Hence to regenerate original signal, it is tried to reduce the
power of the noise signal or in the other way, raise the power level of the informative signal, at
the receiver end this leads to improvement in the signal to noise ratio (SNR). There are several
ways in doing it and here the focus is on adaptive Signal processing new technique (Grazing
Estimation method) to improving the signal to noise ratio.-SPEECH ENHANCEMENT BASED ON WAVELET DENOISING
Abstract:- Noise is an unwanted and inevitable interference in any form of communication. It is
non-informative and plays the role of sucking the intelligence of the original signal. Any kind of
processing of the signal contributes to the noise addition. A signal traveling through the channel
also gathers lots of noise. It degrades the quality of the information signal. The effect of noise
could be reduced only at the cost of the bandwidth of the channel which is again undesired as
bandwidth is a precious resource. Hence to regenerate original signal, it is tried to reduce the
power of the noise signal or in the other way, raise the power level of the informative signal, at
the receiver end this leads to improvement in the signal to noise ratio (SNR). There are several
ways in doing it and here the focus is on adaptive Signal processing new technique (Grazing
Estimation method) to improving the signal to noise ratio.
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Size: 192512 |
Author: majid |
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Description: Phase noise resulting in Common Phase Error
(CPE) and Inter-Carrier Interference (ICI) is a critical challenge
to the implementation of OFDM systems. Modeling phase noise
as a stationary Gaussian random process with the specified
power spectrum density, different from conventional approaches
which mostly relay on pilots to provide CPE estimation, we
explore the statistical characteristics of the sufficient statistics
then propose a pilot-aided decision-directed approach according
to maximum-likelihood criterion. Numerical results demonstrate
that the proposed algorithm enjoys 2dB gain at moderate SNR
and is quite robust against possible model mismatch
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Size: 148480 |
Author: xiaobo |
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Description: 有关MIMO的各种程序,比如编码,信道仿真,信道估计,信噪比计算等,各子程序能够独立运行-MIMO-related procedures, such as coding, channel simulation, channel estimation, SNR calculation, the subroutine can be run independently
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Size: 33792 |
Author: lizhigang |
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Description: 信噪比估计代码，附有IEEE文献一篇，在AWGN下进行了MCRB的相关仿真-A Comparison of SNR Estimation Techniques
for the AWGN Channel
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Size: 420864 |
Author: 李军 |
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Description: 通过MATLAB软件；通过仿真得出性能曲线；从而比较bpsk的性能-The bit-error rate (BER) of binary phase-shift keying
in Rayleigh fading, using the Alamouti transmission scheme and
receiver selection diversity in the presence of channel-estimation
error, is studied. Closed-form expressions for the BER of log-likelihood
ratio selection, signal-to-noise ratio (SNR) selection, switchand-
stay combining selection, and maximum ratio combining are
derived in terms of the SNR and the cross-correlation coefficient
of the channel gain and its corrupted estimate. Two new selection
schemes, space–time sum-of-squares combining selection diversity
and space–time sum-of-magnitudes selection diversity, are
proposed and proven to provide almost the same performance as
SNR selection, but with much simpler implementations. The effects
of channel-
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Size: 340992 |
Author: 刘小洋 |
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Description: qpsk通过信道信噪比估计，包括qpsk，8psk，16psk，16qam-qpsk through the channel SNR estimation
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Size: 7168 |
Author: lulu |
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Description: 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.
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Size: 10240 |
Author: lulu |
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Description: OFDM 系统信噪比估计，matlab源代码-OFDM system, SNR estimation, matlab source code
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Size: 5120 |
Author: lulu |
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Description: Estimation Channel AWGN and selecting suitable modulation By SNR that obtain from channel and passing random signal to AWGN channel-Estimation Channel AWGN and selecting suitable modulation By SNR that obtain from channel and passing random signal to AWGN channel
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Size: 1024 |
Author: hamedvahedian |
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Description: 灵巧干扰对直接序列扩频信号发射机和接收机的干扰仿真程序，包括通信发射机电路、接收机捕获电路、码跟踪电路、载波捕获电路、防假捕电路、信噪比估计电路和数据解调电路-Smart interference on direct sequence spread spectrum signal transmitter and receiver interference simulation program, including communications transmitter circuit, receiver capture circuit, code tracking circuit, the carrier capture circuit, anti-fake fishing circuit, SNR estimation circuit and data solution tone circuits, etc.
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Size: 47104 |
Author: yangle |
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Description: 信噪比的多种估计方法比较研究论文，经典算法最大似然估计、M2M4等-SNR Estimation Methods of a variety of papers, the classical maximum likelihood estimation algorithm, M2M4, etc.
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Size: 5125120 |
Author: WTO |
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Description: QAM信号的信噪比估计算法，不用多描述了，前些年用处很广的，现在也有跟进研究。-SNR estimation algorithm for QAM signals, no more description, a wide use in previous years, but now there are follow-up study.
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Size: 284672 |
Author: WTO |
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Description: 本代码主要是仿真了阵列信号的music算法的基本性能。如估计精度随信噪比的变化和天线孔径的变化。-This code is mainly the array signal simulation algorithm for the basic properties of music. If the SNR estimation accuracy with the changes and changes in the antenna aperture.
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Size: 22528 |
Author: dongdong |
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Description: overall snr estimation in signal
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Size: 2048 |
Author: Farid |
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Description: 基于期望最大化(EM)的最大后验信道估计算法(MAP)在高信噪比(SNR)下将很难获得较低的估计误差,并且,对于导频辅助的MIMO-OFDM系统,OFDM符号的数据传输效率随着发送天线的增加而明显下降.为改善这两种缺陷,引入一种等效的信号模型来改善高SNR下的估计性能 在相邻多个OFDM符号内使用相移正交导频序列和联合估计来提高系统的数据传输效率和估计性能 根据角域内信道间的独立性来减小噪声对估计的影响.通过仿真实验可知,所提算法具有更小的估计误差和更高的数据传输效率.-Maximum a posteriori(MAP) channel estimation algorithm usually uses expectation maximum(EM) algorithm to decrease the high computation.However,this kind of operation has a difficulty in obtaining ideal estimation performance at high signal to noise ratio(SNR) because of the convergent feature of EM algorithm.In addition,for pilot-based multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,data transmission efficiency of OFDM symbol will be reduced with the increas...
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Size: 134144 |
Author: 王睿 |
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Description: This is about SNR estimation using the Auditory feature processing
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Size: 618496 |
Author: Anusha |
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Description: 一种基于信号二阶四阶矩的信噪比估计方法，该文件中包含该方法的文章以及matlab程序。-This estimation method is based on the signal second-order signal-to-noise ratio of the fourth moment. The file contains a paper and a code.
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Size: 70656 |
Author: 洪小刚 |
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Description: SNR estimation comparison
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Size: 415744 |
Author: mo |
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