R u t c o r

Abstract — This paper presents a scheme for the rapid measurement of weighting sequences of in-operation linear systems. Finite duration sequences are used as test signals to the system under test, whose response to the sequence is processed by an appropriate digital filter. The test sequences are here required to have high energy ratio and low sidelobes in their autocorrelation function. It is shown that in the absence of noise an inverse filter is optimum while in very heavy noise matched filter is the best.