FPGA-based HIgh-order FIR filter design
標(biāo)簽： FPGA-based HIgh-order filter design
上傳時間： 2013-08-06
上傳用戶：sssnaxie
RBF of high order fundamental solution of 3D Helmholtz operator
標(biāo)簽： fundamental Helmholtz operator solution
上傳時間： 2016-01-03
上傳用戶：wpwpwlxwlx
FPGA-based HIgh-order FIR filter design
標(biāo)簽： FPGA-based HIgh-order filter design
上傳時間： 2013-12-02
上傳用戶：ommshaggar
Improved EMD Using Doubly-Iterative Sifting and High Order Spline Interpolation
標(biāo)簽： Doubly-Iterative Interpolation Improved Sifting
上傳時間： 2017-08-26
上傳用戶：zhliu007
It was proposed that perfect invisibility cloaks can be constructed for hiding objects from electromagnetic illumination (Pendry et al., Science 312, p. 1780). The cylindrical cloaks experimentally demonstrated (Schurig et al., Science 314, p. 997) and theoretically proposed (Cai et al., Nat. Photon. 1, p. 224) have however simplified material parameters in order to facilitate easier realization as well as to avoid infinities in optical constants. Here we show that the cylindrical cloaks with simplified material parameters inherently allow the zeroth-order cylindrical wave to pass through the cloak as if the cloak is made of a homogeneous isotropic medium, and thus visible. To all HIgh-order cylindrical waves, our numerical simulation suggests that the simplified cloak inherits some properties of the ideal cloak, but finite scatterings exist.
標(biāo)簽： invisibility constructed proposed electrom
上傳時間： 2013-12-18
上傳用戶：13215175592
In an electromagnetic cloak based on a transformation approach, reduced sets of material properties are generally favored due to their easier implementation in reality, although a seemingly inevitable drawback of undesired reflection exists in such cloaks. Here we suggest using HIgh-order transformations to create smooth moduli at the outer boundary of the cloak, therefore completely eliminating the detrimental scattering within the limit of geometric optics. We apply this scheme to a non-magnetic cylindrical cloak and demonstrate that the scattered field is reduced substantially in a cloak with optimal quadratic transformation as compared to its linear counterpart.
標(biāo)簽： electromagnetic transformation properties approach
上傳時間： 2017-03-30
上傳用戶：pkkkkp
We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the HIgh-order ADER scheme. The basic idea in our reconstruction is to use only r stencils to reconstruct the point-wise values of solutions and spatial derivatives for the 2r-1 th order ADER scheme in one dimension, while in two dimensions, the dimension-by-dimension sub-cell reconstruction approach for spatial derivatives is employed. Compared with the original ADER scheme of Toro and Titarev (2002) [2] that uses the direct derivatives of reconstructed polynomials for solutions to evaluate spatial derivatives, our method not only reduces greatly the computational costs of the ADER scheme on a given mesh, but also avoids possible numerical oscillations near discontinuities, as demonstrated by a number of one- and two-dimensional numerical tests. All these tests show that the 5th-order ADER scheme based on our sub-cell reconstruction method achieves the desired accuracy, and is essentially non-oscillatory and computationally cheaper for problems with discontinuities.
標(biāo)簽： 高精度格式
上傳時間： 2016-01-13
上傳用戶：ccsdcczd
The P89LPC938 is a single-chip microcontroller, available in low cost packages, based on a high performance processor architecture that executes instructions in two to four clocks, six times the rate of standard 80C51 devices. Many system-level functions have been incorporated into the P89LPC938 in order to reduce component count, board space, and system cost.
標(biāo)簽： microcontroller single-chip available packages
上傳時間： 2013-12-04
上傳用戶：遠(yuǎn)遠(yuǎn)ssad
資料->【E】光盤論文->【E1】斯坦福博士論文->03 California PhD High integrity GPS-INS filter for precise relative navigation.pdf
標(biāo)簽： California navigation integrity relative
上傳時間： 2013-07-03
上傳用戶：jiiszha
Introduce High-Speed Digital System Design.
標(biāo)簽： High-Speed Digital Design System
上傳時間： 2013-10-20
上傳用戶：gps6888
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