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The effects of spurious loss and gain from error are investigated in numerical simulation of four-wave mixing. Results are compared to previously published results and it is demonstrated that these data suffered from erroneous gain.
Generalized sliding discrete cosine transforms refers to computation of the Discrete Cosine Transforms (DCT) of a sequence as the sequence slides over a window function multiple sample at a time. Recursive algorithms for direct computation of generalized sliding discrete cosine transforms are proposed. The computational performance of the algorithms for both software and hardware implementation is...
Near Space Vehicles draw more attention for its high speed transportation and affordable space access. However, advanced control methods for Near Space Vehicles always required full information on the state. In this paper, a higher-order sliding-mode observer is proposed in MIMO nonlinear longitudinal dynamic equations. The observable states can be estimated exactly and the unobservable ones will...
How to estimate the exchange rates is still an unanswered puzzle. Many economists have found various models to forecast the exchange rate, but these models still have some limitations. Some models achieve obvious successes for particular years, but perform very poor in another years. This paper compare three forecast models for different time horizon, and introduce a survey about the dealers' opinions...
In this paper, the generalized modified F-expansion method is used to seek exact traveling wave solutions of (2+1)-dimensional potential Kadomstev-Petviashvili equation. As a result, many new and more general exact travelling wave solutions are obtained including soliton-like solutions, trigonometric function solutions, exponential solution and rational solution.
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