Finite-Length Test Sequences in System Identification Techniques

摘要

A scheme is presented 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 sequences is processed by an appropriate digital filter. The test sequences are here required to have high energy ratio and low sidelobes in their auto-correlation function. It is shown that sequences having desirable properties can be obtained by clipping Huffman sequences. Results of computer simulation tests performed in different systems and using different sequences are also given.