TY  - BOOK
AU  - Godfrey, Keith, ed.
TI  - Perturbation signals for system identification
SN  - 0-13-656414-3
U1  - 621.3822 
PY  - 1993///
CY  - New York
PB  - Prentice
KW  - Communication engineering
KW  - Multi- Frequency
KW  - Signal system
N1  - Includes bibliographical references and index
ER  -