We consider a two-dimensional version of the classical maximum-likelihood sequence detection problem for a binary antipodal signal that is corrupted by linear intersymbol interference (ISI) and then passed through a memoryless channel. For one-dimensional signals and fixed ISI, this detection problem is well-known to be efficiently solved using the Viterbi algorithm. We show that the two-dimens...

Gamma cameras based on charge-coupled devices (CCDs) coupled to continuous scintillation crystals can combine a good detection efficiency with high spatial resolutions with the aid of advanced scintillation detection algorithms. A previously developed analytical multi-scale algorithm (MSA) models the depth-dependent light distribution but does not take statistics into account. Here we present a...

When a wavelet to be estimated is not spiky, then a single most likely replacement (SMLR) detector, which is used to detect randomly located impulsive events that have Gaussian-distributed amplitudes, may split a large spike into two smaller ones and may also detect some spikes at wrong locations, although these locations are very close to their true ones. Presented here are two new detection a...

We focus on receiver structures and their performance for DS/CDMA systems in mobile cellular environments in cooperation with a linear antenna array. After reviewing the performance of a single-element antenna (scalar) maximum likelihood (ML) detection for CDMA signals, we analyze two ML detection receiver structures, employing interference suppression and desired signal enhancement, and compar...

the technical efficiency involved in cocoa production in cross river state was estimated using the stochastic frontier production function analysis. the effects of some selected socio- economic characteristics of the farmers on the efficiency indices were also estimated. the study relied upon primary data generated from interviewing cocoa farmers using a set of structured questionnaire. a multi...

Motivated by previous comparison work, a configuration for partial response maximum likelihood detection using the Viterbi algorithm (PRML/VA) detectors with adaptive target polynomials is examined. In this configuration, a mean-quared error decision feedback equalization (MSE-DFE) is used to adapt both the forward equalizer and the target channel for the Viterbi detector. The performance of th...

A 0.88 mm2 65-nm analog-to-digital converter (ADC)-based serial link transceiver is designed with a maximum-likelihood sequence detector (MLSD) for robust equalization. The MLSD is optimized in a pipelined look-ahead architecture to reach 10 Gb/s at 5.8 pJ/b and 5 Gb/s at 3.9 pJ/b, making it practical for an energy-efficient ADC-based serial link. Compared with linear equalizer and decision fee...

The integrity and security of fingerprint images can be achieved by using watermarking techniques. We introduce Maximum-Likelihood (ML) watermark detection method to detect an invisible watermark within discrete wavelet transform (DWT) coefficients of fingerprint images. Such an optimum technique, which is based on Bayes’ decision theory and the Neyman-Pearson criterion, requires parameters of ...

INTRODUCTION Electromyography (EMG) is used extensively to determine the muscle activation patterns of neuromuscular functions such as motor control, posture, and movement [1,2]. The onset of the EMG activity is a marker for the onset of active control and therefore is one of the most common parameters evaluated from EMG records [3], but there is no standard method to determine this parameter [...