TY - JOUR
T1 - On observability of sampled-data systems
AU - Langholz, G.
AU - Bar-Ness, Y.
PY - 1977/6
Y1 - 1977/6
N2 - In this paper we consider sampled-data systems derived from continuous, time-invariant systems whose inputs are piecewise constant. The problem dealt with is that of finding necessary and sufficient conditions for observability of the sampled-data system, given that the continuous-time system is observable. By comparison With some previously obtained results pertaining to the preservation of controllability under sampling, it is shown that the latter requires a stronger condition than that required for the preservation of observability.
AB - In this paper we consider sampled-data systems derived from continuous, time-invariant systems whose inputs are piecewise constant. The problem dealt with is that of finding necessary and sufficient conditions for observability of the sampled-data system, given that the continuous-time system is observable. By comparison With some previously obtained results pertaining to the preservation of controllability under sampling, it is shown that the latter requires a stronger condition than that required for the preservation of observability.
UR - http://www.scopus.com/inward/record.url?scp=0017502338&partnerID=8YFLogxK
U2 - 10.1080/00207727708942075
DO - 10.1080/00207727708942075
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AN - SCOPUS:0017502338
SN - 0020-7721
VL - 8
SP - 697
EP - 704
JO - International Journal of Systems Science
JF - International Journal of Systems Science
IS - 6
ER -