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signal time-delay estimation

Improved Adaptive Time Delay Estimation Algorithm Based on Fourth order Cumulants

Improved Adaptive Time Delay Estimation Algorithm Based on Fourth order Cumulants

... Time-delay estimation is widely used in sonar and radar ...estimate time delay accurately in variable signal to noise ratio(SNR), an improved algorithm of adaptive time ...

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Performance Comparison on Three Time Delay Estimation Algorithms Using Experiments

Performance Comparison on Three Time Delay Estimation Algorithms Using Experiments

... Time delay estimation is widely used in engineering fields such as radar, sonar, biomedical engineering, communication and so ...pulse signal, the lower order covariance algorithm is better ...

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A Robust Joint Estimation Method of Time Delay and Doppler Frequency Shift

A Robust Joint Estimation Method of Time Delay and Doppler Frequency Shift

... y t = s t − D e − + w t + s t (2) where s t ( ) denotes the signal of interest and it is a cyclostationary signal. D denotes the time delay between the receivers. f d denotes the Doppler ...

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Neural Network Based Time Delay Estimation

Neural Network Based Time Delay Estimation

... first time, in estimating constant time ...delayed signal and the noise-free signal. Accurate time-delay estimates were obtained by the NN through the testing ...for ...

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Estimation of Propagation Time of Microwave Signal in Different Environments

Estimation of Propagation Time of Microwave Signal in Different Environments

... (UWB) signal into the various walls of different dielectric constants and hence different environments and other visually opaque obstacles finds applications in many areas such as in case of emergency conditions ...

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Robust Adaptive Time Delay Estimation for Speaker Localization in Noisy and Reverberant Acoustic Environments

Robust Adaptive Time Delay Estimation for Speaker Localization in Noisy and Reverberant Acoustic Environments

... G.0233.01, Signal Processing and Automatic Patient Fitting for Advanced Auditory Prostheses, the IWT Project 020540, Performance Improvement of Cochlear Implants by Innovative Speech Pro- cessing Algorithms, the ...

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Time-Delay Estimation in Dispersed Spectrum Cognitive Radio Systems

Time-Delay Estimation in Dispersed Spectrum Cognitive Radio Systems

... cited. Time-delay estimation is studied for cognitive radio systems, which facilitate opportunistic use of spectral ...accurate time-delay estimates of signals that occupy multiple ...

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Time Delay Estimation in Room Acoustic Environments: An Overview

Time Delay Estimation in Room Acoustic Environments: An Overview

... The second experiment involves a set of data obtained in nonreverberant (simulated by setting all the reflection coef- ficients to 0) but noisy environments. The source signal and its presentation are the same as ...

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Application of Model-Based Estimation to Time-Delay Estimation of Ultrasonic Testing Signals

Application of Model-Based Estimation to Time-Delay Estimation of Ultrasonic Testing Signals

... In this Section, first, a single ultrasonic echo is measured by using the pulse-echo ultrasonic testing technique. This is a back wall echo received from a 20 mm thick steel block tested by a 4 MHz ultrasonic probe. The ...

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Techniques for Optimization in Time Delay Estimation from Cross Correlation Function

Techniques for Optimization in Time Delay Estimation from Cross Correlation Function

... From Fig. 5(a), when the correlation function passes through a maximum, its Hilbert transform will pass through zero [12]. In real measurement, it often occurs that the received signal does not hit the multiple of ...

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Performance of GCC  and AMDF Based Time Delay Estimation in Practical Reverberant Environments

Performance of GCC and AMDF Based Time Delay Estimation in Practical Reverberant Environments

... true time delay as also pointed out in [6, ...the signal containing new samples for di ff erent time ...true time de- lay, and another one appears at 1 ...

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Time delay estimation for UWB non coherent receiver in indoor environment, from theory to practice

Time delay estimation for UWB non coherent receiver in indoor environment, from theory to practice

... with time in a way that depends on the physical environ- ...and delay fluctuations are suffi- ciently independent statistically, hence the Central Limit Theorem can be ...received signal of (1) can ...

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Research of Acoustic Source Localization Technology Based On Spatial Time Delay Estimation and Intelligent Signal Analysis

Research of Acoustic Source Localization Technology Based On Spatial Time Delay Estimation and Intelligent Signal Analysis

... The accurate and real-time localization of sound sources is the basis of machine intelligent technology and industrial and civilian positioning applications. It can provide basic help for many applications. In ...

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Analysis of radiometric signal in sedimentating suspension flow in open channel

Analysis of radiometric signal in sedimentating suspension flow in open channel

... the estimation of the sedimentating solid particles average flow velocity in an open channel using radiometric ...weak signal to noise ...transportation time delay the classical ...

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Ultrasound Elastography: Time Delay Estimation

Ultrasound Elastography: Time Delay Estimation

... require estimation of tissue displacement, commonly referred to as Time-Delay Estimation (TDE) using ultrasound radio-frequency (RF) ...

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Multi Stage Pedestrian Crossings and Two Stage Bicycle Turns: Delay Estimation and Signal Timing Techniques for Limiting Pedestrian and Bicycle Delay

Multi Stage Pedestrian Crossings and Two Stage Bicycle Turns: Delay Estimation and Signal Timing Techniques for Limiting Pedestrian and Bicycle Delay

... Crossing Delay Calculator ...and signal timing data (start time and duration of each walk ...extra time after the WALK interval that is still considered effective green (default = 4 ...average ...

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Fault estimation and accommodation for switched systems with time-varying delay

Fault estimation and accommodation for switched systems with time-varying delay

... fault estimation and accommodation for switched system with time-varying delay is not con- sidered ...the time-delay is time- varying and constrained in an interval ...constant ...

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A Robust and Higher Precision Time Delay Estimation Method Facing Low Signal to Noise Ratio Conditions

A Robust and Higher Precision Time Delay Estimation Method Facing Low Signal to Noise Ratio Conditions

... paper, time delay estimation values of two algorithms are selected as follows: median of all iteration values as delay estimation ...accurate delay estimation value, ...

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A Novel Efficient Distributed Arithmetic &Finite Impulse Response on Look-up-table

A Novel Efficient Distributed Arithmetic &Finite Impulse Response on Look-up-table

... bit-level delay model proposed in the computation time of the sum and carry-out of a full adder is surmised to be identically ...computation time of the sum and carry out to be equipollent, we treat ...

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State bounding estimation for a linear continuous time singular system with time varying delay

State bounding estimation for a linear continuous time singular system with time varying delay

... bounding estimation of a continuous-time singular system with time delays has been investigated in this ...with time delays by using the maximal Lyapunov–Krasovskii functional and employing ...

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