학술논문

Effective interlaced FFT computation scheme for adaptive integral method
Document Type
Conference
Source
2003 IEEE Topical Conference on Wireless Communication Technology Wireless communication technology Wireless Communication Technology, 2003. IEEE Topical Conference on. :430-434 2003
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Signal Processing and Analysis
Scattering
Message-oriented middleware
Convolution
Interpolation
MLFMA
Fast Fourier transforms
Testing
Current distribution
Moment methods
Equations
Language
Abstract
A new and efficient scheme for the adaptive integral method (AIM) is presented for solving the RCS of large scattering objects. An interlaced grid system is introduced to reduce the memory requirement for the FFT calculation. The total memory resource required for FFT calculation with the new scheme is approximately 5.6 times less than the conventional AIM method. Interactions between the different grid systems are obtained by using interpolation. It is proven that the /sup c/omplexity of the newly proposed scheme is the same as the conventional AIM.