Its application can be found in many domains such as OTHR (Over-the-Horizon-Radar), radar stealth technology, target recognition, remote sensing and so on. There are many interests in the scattering and radiation problem of targets over a half space or layered half space. Numerical results show that this method is in good agreement with classic algorithm and it can be used in the fast calculation of scattering and radiation of targets over layered half space. In this paper, a new method which avoids using the complex and time-consuming half space Green function is proposed. However, methods available for extrapolating have to evaluate the half space Green function. The FDTD calculation is performed with a plane wave incidence, and the RCS of far field is obtained by extrapolating the currently calculated data on the output boundary. Compare with the traditional excitation plane wave method, the calculation memory and time requirement is greatly decreased.
Note: Author names will be searched in the keywords field, also, but that may find papers where the person is mentioned, rather than papers they authored.įinite-difference time-domain (FDTD) algorithm with a new method of plane wave excitation is used to investigate the RCS (Radar Cross Section) characteristics of targets over layered half space.Use a comma to separate multiple people: J Smith, RL Jones, Macarthur.Use these formats for best results: Smith or J Smith.For best results, use the separate Authors field to search for author names.Use quotation marks " " around specific phrases where you want the entire phrase only.Question mark (?) - Example: "gr?y" retrieves documents containing "grey" or "gray".Asterisk ( * ) - Example: "elect*" retrieves documents containing "electron," "electronic," and "electricity".Improve efficiency in your search by using wildcards.Example: (photons AND downconversion) - pump.Example: (diode OR solid-state) AND laser.Note the Boolean sign must be in upper-case. Separate search groups with parentheses and Booleans.Keep it simple - don't use too many different parameters.
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