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Numeric data commumcatlon generally calls upon a check sum to detect single transmission errors. MulUple errors, which cannot be detected by sample check sums alone, necessitate additional check symbol(s) A check scheme ts defined to constst of a (simple) check sum and a (posmonal) check product A "perfect" p-error check scheme ~s a check scheme that… (More)

Domain decomposition (Krylov-Schwarz) iterative methods are proposed for the parallel implicit solution of the unsteady geopotential equation that arises when semi-implicit, semi-Lagrangian (SISL) methods are employed in the long-time integration of the shallow water equations. SISL methods permit timesteps on the scale of Rossby wave dynamics, in contrast… (More)

Passivity in a VLSI model is an important property to guarantee stable global simulation. Most VLSI models are naturally described as descriptor systems (DSs) or singular state spaces. Passivity tests for DSs, however, are much less developed compared to their non-singular state space counterparts. For large-scale DSs, the existing test based on linear… (More)

ityl or positive realness in a VLSI model is an important property Passivity in a VLSI model is an important property to guarantee sta-to guarantee stable global simulation [3,7]. Existing DS passivity ble global simulation. Most VLSI models are naturally described tests are restrnctive in different aspects. For example, the extended as descriptor systems… (More)

- C-W. K. Chu
- 2009

—The Farrow structure provides an effective means of implementing a variable fractional delay filter. In the literature, the design of Farrow filters is invariably formulated as a weighted least-squares problem, or similar. However, this design approach does not often yield satisfactory group-delay responses. This paper presents a design formulation that… (More)

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