Tektronix aurand sandia scd5000 deconv free download

File name aurand_sandia_scd5000_deconv.pdf

WEP-4 BANDWIDTH ENHANCEMENT OF SINGLE-SHOT DATA ACQUISITION SYSTEMS BY DECONVOLUTION OF SYSTEM RESPONSE John F. Aurand, Paul1 E. Patterson, Charles A. Frost Sandia National Laboratories / High-Power ElectromagneticsDepartment MS 1153, PO Box 5800 / Albuquerque, NM 87185-1153 Abstract SCD-5000 to a host personal computer, and then deconvolution processing. The FlT spectrum of the Procedures have been developed [ 11 for enhancing the acquired signal is divided by the system transfer effective bandwidth of single-shot measurement function, and then an inverse FFT is used to compute systems. One procedure characterizes the transfer the compensated timedomain input signal. If function of the measurement system hardware, and necessary, any one of several lowpass filtering the other is a software compensation technique to algorithms may then used to reduce the deconvolution deconvolve this transfer function from the acquired data. The example shown employs a Tektronix SCD-5000 Transient Digitizer, with a -3 dB bandwidth improvement of 4.5 times, to over 15 GHz. System Characterization noise. 2-10 h 3 -20 0 0 ..._ ... ~ ... _.__.__._,.._._.__...,~...~... ... ^... . ...~... Each of the components of a single-shot data .t acquisition system (coaxial cabling, delay line, and waveform recorder) is band-limited, and thus degrades the acquired waveform. The measurement -50 system hardware is modeled as a cascaded frequencydomain transfer function, and if mismatch 0 5 10 I5 20 S parameters are assumed negligible, then the transfer Frequency (GHz) function