Code-division multiplexing and frequency-division multiplexing for nonlinear inverse scattering

Author

Fu-Chiarng Chen ; Weng Cho Chew

Author_Institution

Qualcomm Inc., San Diego, CA, USA

Volume

3

fYear

1999

fDate

11-16 July 1999

Firstpage

2128

Abstract

This paper presented a new scheme for nonlinear inverse scattering. We have applied the code-division multiplexing (CDM) and frequency-division multiplexing (FDM) schemes to reduce the CPU run time and memory requirement of the time-domain nonlinear inverse scattering solvers, the distorted Born iterative method (DBIM) and LSF, by a factor proportional to the number of transmitters. This novel approach for inverse scattering is a major advancement because of the large reduction of the memory requirement and the computational time of the nonlinear inverse scattering.

Keywords

electromagnetic wave scattering; frequency division multiplexing; inverse problems; iterative methods; time-domain analysis; CDM; CPU run time reduction; DBIM; FDM; LSF; code-division multiplexing; computational time reduction; distorted Born iterative method; frequency-division multiplexing; memory requirement reduction; nonlinear inverse scattering; time-domain nonlinear inverse scattering solvers; transmitters; Bandwidth; Code division multiplexing; Equations; Finite difference methods; Frequency division multiplexing; Inverse problems; Multiaccess communication; Radio frequency; Time domain analysis; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1999. IEEE

Conference_Location

Orlando, FL, USA

Print_ISBN

0-7803-5639-x

Type

conf

DOI

10.1109/APS.1999.788382

Filename

788382