Title :
Improved multiexponential transient spectroscopy by iterative deconvolution
Author :
Marco, Santiago ; Palacìn, Jordi ; Samitier, Josep
Author_Institution :
Dept. d´´Electron., Barcelona Univ., Spain
fDate :
6/1/2001 12:00:00 AM
Abstract :
The analysis of multiexponential decays is challenging because of their complex nature. When analyzing these signals, not only the parameters, but also the orders of the models, have to be estimated. We present an improved spectroscopic technique specially suited for this purpose. The proposed algorithm combines an iterative linear filter with an iterative deconvolution method. A thorough analysis of the noise effect is presented. The performance is tested with synthetic and experimental data
Keywords :
Gaussian noise; Laplace transforms; curve fitting; deconvolution; deep level transient spectroscopy; discrete time filters; exponential distribution; iterative methods; least squares approximations; spectroscopy computing; Gaussian noise; discrete-time implementation; improved spectroscopic technique; inverse Laplace transform; iterative deconvolution; iterative linear filter; multiexponential decays; multiexponential transient spectroscopy; noise effect; thermal transient; Algorithm design and analysis; Deconvolution; Filters; Iterative algorithms; Iterative methods; Kernel; Semiconductor device noise; Signal analysis; Spectroscopy; Transient analysis;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
