Publication detail

Exploiting of the Compression Methods for Reconstruction of the Antenna Far-Field Using Only Amplitude Near-Field Measurements

PUSKELY, J. NOVÁČEK, Z.

Original Title

Exploiting of the Compression Methods for Reconstruction of the Antenna Far-Field Using Only Amplitude Near-Field Measurements

Type

journal article - other

Language

English

Original Abstract

The novel approach exploits the principle of the conventional two-plane amplitude measurements for the reconstruction of the unknown electric field distribution on the antenna aperture. The method combines a global optimization with a compression method. The global optimization method (GO) is used to minimize the functional, and the compression method is used to reduce the number of unknown variables. The algorithm employs the Real Coded Genetic Algorithm (RCGA) as the global optimization approach. The Discrete Cosine Transform (DCT) and the Discrete Wavelet Transform (DWT) are applied to reduce the number of unknown variables. Pros and cons of methods are investigated and reported for the solution of the problem. In order to make the algorithm faster, exploitation of amplitudes from a single scanning plane is also discussed. First, the algorithm is used to obtain an initial estimate. Subsequently, the common Fourier iterative algorithm is used to reach global minima with sufficient accuracy. The method is examined measuring the dish antenna

Keywords

Planar near-field scanning, near-field far-field transform (NF-FF), global optimization, compression method, Fourier iterative algorithm.

Authors

PUSKELY, J.; NOVÁČEK, Z.

RIV year

2010

Released

1. 6. 2010

Location

Brno

ISBN

1210-2512

Periodical

Radioengineering

Year of study

19

Number

2

State

Czech Republic

Pages from

299

Pages to

306

Pages count

8

BibTex

@article{BUT47537,
  author="Jan {Puskely} and Zdeněk {Nováček}",
  title="Exploiting of the Compression Methods for Reconstruction of the Antenna Far-Field Using Only Amplitude Near-Field Measurements",
  journal="Radioengineering",
  year="2010",
  volume="19",
  number="2",
  pages="299--306",
  issn="1210-2512"
}