Title :
The discrete-time quadrature subsample estimation of delay
Author :
Maskell, Douglas L. ; Woods, Graham S.
Author_Institution :
Sch. of Comput. Eng., Nanyang Technol. Univ., Singapore
fDate :
2/1/2002 12:00:00 AM
Abstract :
A high-resolution discrete-time delay estimator for determining the delay between two periodic signals is described. The technique is based upon the principles of analog quadrature detection and is relatively simple to implement digitally. Simulations in the presence of system noise show that the delay estimator does not exhibit any significant bias and outperforms other estimators in medium to high SNR situations
Keywords :
Gaussian noise; delay estimation; discrete time systems; interpolation; phase detectors; signal sampling; Gaussian noise; Monte Carlo simulations; analog quadrature detection; discrete-time delay estimator; high-resolution estimator; interpolation; periodic signals; phase delay; phase measurement; quadrature subsample estimation; signal sequences; system noise; Biomedical measurements; Delay effects; Delay estimation; Frequency estimation; Geophysical measurements; Interpolation; Phase estimation; Phase measurement; Signal processing; Signal to noise ratio;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
