maximum likelihood decoding pdf
Báo cáo hóa học: " Analysis of Minute Features in Speckled Imagery with Maximum Likelihood Estimation" pdf
... Feature Analysis under Speckle with Maximum Likelihood 24853020100Iteration−56−55−54−53−52−51Reduced log -likelihood Figure 9: Function evaluation at iterations of ... situation (2) (denoted z2). For each sample, the likelihood function was computed and, in order to visualizeFeature Analysis under Speckle with Maximum Likelihood 2489250200150100500Sample−15−10−50α(a)250200150100500Sample−14−12−10−8−6−4−20α(b)250200150100500Sample−25−20−15−10−50α(c)250200150100500Sample−40−30−20−100α(d)Figure ... and used to choose a strategy for computing maximum likelihood estimatesthat is resistant to outliers.Keywords and phrases: image analysis, inference, likelihood, computation, optimization.1....
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Báo cáo hóa học: " Research Article Maximum Likelihood DOA Estimation of Multiple Wideband Sources in the Presence of Nonuniform Sensor Noise" pdf
... modified to carry outstep 1.4.2. Approximately concentrated maximum likelihood algorithm (AC-ML)In Section 4.1, an iterative maximum likelihood widebandDOA estimation algorithm is presented. ... all the constant terms,the log -likelihood function L(Ω) can be expressed asL(Ω)=−PN2log σ2−1σ2N/2k=1g(k)2. (7)It follows that the maximum likelihood estimator for Ω issimplyΩ ... parameters by maximum likelihood, ” in Proceedingsof the IEEE International Conference on Acoustics, Speech andSignal Processing (ICASSP ’86), pp. 2819–2822, Tokyo, Japan,1986.[8] A. G. Jaffer, “Maximum...
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Tài liệu Bài 9: ICA by Maximum Likelihood Estimation ppt
... 9ICA by Maximum Likelihood EstimationA very popular approach for estimating the independent component analysis (ICA)model is maximum likelihood (ML) estimation. Maximum likelihood estimation ... all.9.2 ALGORITHMS FOR MAXIMUM LIKELIHOOD ESTIMATIONTo perform maximum likelihood estimation in practice, we need an algorithm toperform the numerical maximization of likelihood. In this section, ... is actually equal to the likelihood. This means thatinfomax is equivalent to maximum likelihood estimation.9.4 EXAMPLESHere we show the results of applying maximum likelihood estimation to...
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Báo cáo sinh học: " Research Article Inverse Modeling of Respiratory System during Noninvasive Ventilation by Maximum Likelihood Estimation" doc
... Processing,Prentice-Hall, Englewood Cliffs, NJ, USA, 1993.[12] T. T. Pham and R. J. P. DeFigueiredo, Maximum likelihood estimation of a class of non-Gaussian densities with appli-cation to Lp deconvolution,” ... Processing, vol. 37, no. 1, pp. 73–82, 1989.[13] B. T. Sieskul and S. Jitapunkul, “An asymptotic maximum likelihood for estimating the nominal angle of a spatiallydistributed source,” International ... logarithmic likelihood func tion with respectto σ2r:∂ logLy1:N; Θ, σr, pr∂σr= 0. (11)With the help of the conditional probability theorem, by(10), the logarithmic likelihood...
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Báo cáo sinh học: " Research Article Maximum-Likelihood Semiblind Equalization of Doubly Selective Channels Using the EM Algorithm" docx
... results for the following equaliza-tion algorithms.(i) Maximum Likelihood equalization using perfectchannel knowledge.(ii) Maximum likelihood equalization with channel esti-mation based only ... recursive, RLS-based, channel estimationwere proposed [19–22]. The combination of MAP decoding and maximum likelihood channel estimation can be justifiedusing the EM principle. This leads to an ... IEEETransactions on Communications, vol. 42, no. 2–4, pp. 941–950, 1994.[12] R. A. Iltis, “A Bayesian maximum- likelihood sequence esti-mation algorithm for a priori unknown channels and symboltiming,”...
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Báo cáo hóa học: " Research Article Maximum Likelihood Timing and Carrier Synchronization in Burst-Mode Satellite Transmissions" pot
... determines the locationνMof the maximum over this set. The second step (fine search) makes an inter-polation between the samples P(νn) and computes the local maximum nearest toνM. It should ... might fear, the maximization ofthe likelihood function Λ(ν, ε, ϕ) needs not be made on athree-dimensional domain. Actually, the location (ν, ε, ϕ)ofthe maximum can be found through simple ... and NetworkingVolume 2007, Article ID 65058, 8 pagesdoi:10.1155/2007/65058Research Article Maximum Likelihood Timing and Carrier Synchronization inBurst-Mode Satellite TransmissionsMichele...
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Báo cáo hóa học: " Research Article Priority-Based Heading One Detector in H.264/AVC Decoding" pdf
... onedetectorCoefftoken decoding Tot al Co effandtrailingOnes16Runbefore decoding Tot alzeros decoding 16 16Tot al zerosLevelprefixLevel decoding CAVLC decoding T1 decoding Headingone detectorHeadingone ... these VLC tables, a heading one detector isindispensable. The CAVLC decoding step is briefly describedin Figure 3.The CAVLC decoding can be partitioned into five stepsand three of them require ... detectoris used extensively in H.264/AVC decoding. 2.3. Related worksAlthough there are some designs in literature dealing withExp-Golomb or CAVLC decoding [4, 7–9], few of them men-tioned...
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Báo cáo hóa học: " Research Article Maximum Likelihood DOA Estimation of Multiple Wideband Sources in the Presence of Nonuniform Sensor Noise" doc
... modified to carry outstep 1.4.2. Approximately concentrated maximum likelihood algorithm (AC-ML)In Section 4.1, an iterative maximum likelihood widebandDOA estimation algorithm is presented. ... all the constant terms,the log -likelihood function L(Ω) can be expressed asL(Ω)=−PN2log σ2−1σ2N/2k=1g(k)2. (7)It follows that the maximum likelihood estimator for Ω issimplyΩ ... stepwise concentratesthe log -likelihood function, while the second is a noniter-ative algorithm that maximizes the derived approximately-concentrated (AC) log -likelihood function.The rest...
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Báo cáo hóa học: " Research Article Eigenstructures of MIMO Fading Channel Correlation Matrices and Optimum Linear Precoding Designs for Maximum Ergodic Capacity" pdf
... on Communi-cations, vol. 49, no. 12, pp. 2198–2206, 2001.[6] H. Sampath, Linear precoding and decoding for multiple inputmultiple output (MIMO) wireless channels, Ph.D. thesis, Stan-ford University, ... ArticleEigenstructures of MIMO Fading Channel CorrelationMatrices and Optimum Linear Precoding Designs for Maximum Ergodic CapacityHamid Reza Bahrami and Tho Le-NgocDepartment of Electrical and Computer ... ofthe multiplier matrices Σi’s (i = 0 ···L − 1) to modify theeigenvalues in order to achieve the maximum upper boundon ergodic capacity in (33), that is,maxΣlog2detIM(K+L)+PKσ2ndiagΔiΣs.t....
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Báo cáo hóa học: " Research Article A Maximum Likelihood Estimation of Vocal-Tract-Related Filter Characteristics for Single Channel Speech Separation" doc
... (5)inSection 7 to derive the maximum likelihood estimator in which the PDF of y is expressed in terms of thePDFs of the his’. Therefore, it is necessary to obtain eiandthe PDF of hi. The excitation ... un-derlying signals.Now we apply fy(y) in a maximum likelihood frame-work to estimate the parameters of the underlying signals.The main objective of the maximum likelihood estimator isto find the kth ... multipitchdetection, and maximum likelihood estimation in which weformulate the proposed approach. In particular, we followthe procedure for obtaining the maximum likelihood estima-tor by...
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Báo cáo hóa học: " Two-Stage Maximum Likelihood Estimation (TSMLE) for MT-CDMA Signals in the Indoor Environment" doc
... Two-Stage Maximum Likelihood Estimation for MT-CDMA 59functions; the superscripts −1 and 0 on the data symbols ... Gn(G-terms with sub-scripts n), and current data bit Iq1,n, is Gaussian with theTwo-Stage Maximum Likelihood Estimation for MT-CDMA 57Serial datastreamDataencoderSerial-to-parallel dataconverterexp( ... S2/2σ2r,rep-resents the ratio of the power associated with the direct pathTwo-Stage Maximum Likelihood Estimation for MT-CDMA 63128/8256/16Coherent systemTSMLE-based system0 5 10...
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Báo cáo hóa học: " Maximum Likelihood Turbo Iterative Channel Estimation for Space-Time Coded Systems and Its Application to Radio Transmission in Subway Tunnels" potx
... reception, optimum maximum likelihood (ML) decoding can be carried out by consideringthe hypertrellis associated with the concatenation of the twocomponent codes. Obviously, such a decoding approach ... asuboptimal, but very powerful, decoding scheme termed it-erative maximum a posteriori (MAP) decoding [3, 4]. Basi-cally, the method relies on independently decoding each ofthe component codes ... Journal on Applied Signal Processing 2004:5, 727–739c 2004 Hindawi Publishing Corporation Maximum Likelihood Turbo Iterative ChannelEstimation for Space-Time Coded Systemsand Its Application...
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Báo cáo hóa học: " Estimation of Road Vehicle Speed Using Two Omnidirectional Microphones: A Maximum Likelihood Approach" doc
... nextsection, which will be shown to compare favorably to the in-direct method of [15].3. APPROXIMATE MAXIMUM LIKELIHOOD ESTIMATE3.1. DerivationConsider first the problem of estimating v0without knowl-edge ... pp. 67–94, 1996.[10] J. W. Betz, “Comparison of the deskewed short-time cor-relator and the maximum likelihood correlator,” IEEETrans. Acoustics, Speech, and Signal Processing, vol. 32, no. 2,pp. ... Trans. Acoustics,Speech, and Signal Processing, vol. 29, no. 3, 1981.[13] J. A. Stuller, Maximum- likelihood estimation of time-varying delay—part I,” IEEE Trans. Acoustics, Speech, and Sig-nal...
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Báo cáo hóa học: " A Maximum Likelihood Approach to Least Absolute Deviation Regression" potx
... Journal on Applied Signal Processing 2004:12, 1762–1769c 2004 Hindawi Publishing CorporationA Maximum Likelihood Approach to Least AbsoluteDeviation RegressionYinbo LiDepartment of Electrical ... the optimization needed to solve theLAD regression problem can be viewed as a sequence of maximum likelihood estimates (MLE) of location. The derived algorithmreduces to an iterative procedure ... implementation complexity.Keywords and phrases: least absolute deviation, linear regression, maximum likelihood estimation, weighted median filters.1. INTRODUCTIONLinear regression has long been...
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