Deconvolution of Time Domain Waveforms in the Presence of Noise (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from Deconvolution of Time Domain Waveforms in the Presence of Noise

Deconvolution or inverse filtering was used to determine the impulse response of a system using noisy input and output time domain sequences (discrete data). Frequency and time domain methods were studied along with the synthesis of the filters required to obtain stable and smooth results. For the methods studied it was concluded that the superior technique was provided by an optimal frequency domain method implemented via the fft. Also, it is pointed out that the time domain methods are only in their infancy and still retain the promise of avoiding transform domain filtering. Examples are presented in which the impulse responses are determined in the presence of varying degrees of noise for a coaxial transmission line, a wave - shaping filter, and a broad - band antenna.

Key words: deconvolution; impulse response; inverse filtering; noise contamination; time domain; waveforms.

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