"This paper presents an improved approach to analyze the stability of the digital closed-loop control systems under
finite word-length (FWL) effects. This approach can effectively
evaluate the least bits that the digital controllers should be
implemented to preserve the stability of the closed-loop systems.
The conservativeness in the stability analysis in terms of word
length can be released by using normal-form transformation.
Finally, the numerical simulations will be provided to verify the
proposed approach."
