dispersion error


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Related to dispersion error: Refraction error, variance error

dispersion error

[də′spər·zhən ‚er·ər]
(ordnance)
Chance variation in a series of shots even though firing conditions are kept as constant as possible.

dispersion error

dispersion error
The distance between the point of aim and the point of impact.
References in periodicals archive ?
It reduced the dispersion error to one half of the classical formula, while maintaining the same order (second-order) of accuracy.
We chose combinations that will reduce the local truncation error or global dispersion error.
It is shown that with a larger time step than conventional FDTD method, both the HIE-FDTD method and ADI-FDTD method have an obvious dispersion error, but the dispersion error of the HIE-FDTD method is smaller than that of the ADI-FDTD method.
As the HIE-FDTD method is very useful for problems with fine structures in one direction, its numerical dispersion errors with nonuniform cells is discussed and compared.
However, the novel method has the lower dispersion error, a larger time step and a coarser mesh can be used.
However, similar to the ADI-FDTD method, the LOD-FDTD method also has a larger numerical dispersion error at larger time steps.
To reduce the numerical dispersion error further, two efficient four-stages split-step FDTD methods in two dimensions are proposed in this paper.
Recently, to further reduce the dispersion error of the LOD-FDTD method, the parameter optimized method to the fourth-order LOD-FDTD was proposed based on the (2, 4) stencil [36].
For the purpose of minimizing the dispersion error, the equation relating the angular frequency [[omega].
Moreover, we compare the numerical dispersion errors predicted by different schemes in Fig.
From Figures 1-6 it can be seen that the dispersion error of the proposed method is less than that of the ADI-FDTD method, which demonstrates that the proposed method has a high accuracy.
To reduce the numerical dispersion error further, an efficient SSCN6-FDTD method in 3-D domains with controlling parameters is presented in this paper.