Abstract:Quantifying a system's time-invariance deviation may reveal how it represents and processes the signals. The main objective of this paper is to quantify the departure of a time-varying system from being time-invariant. In particular, the paper quantifies the time variance of filter banks using kernel representation. We define the ℓ 2 measure for the degree of time variance (MDTV ℓ2 ) based on the discrete-time domain form of the kernel representation and the ℓ ∞ measure (MDTV ℓ∞ ) based on the matrix represent… Show more
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