A multifrequency SFCW radar for humanitarian demining

Author

van Genderen, P. ; Zijderveld, J. ; Hakkaart, P. ; van Heijenoort, J.

Author_Institution

Int. Res. Center for Telecommun.-Transmission & Radar (IRCTR), Delft Univ. of Technol., Netherlands

fYear

2002

fDate

15-17 Oct. 2002

Firstpage

196

Lastpage

199

Abstract

IRCTR has developed and built a novel design of a stepped frequency continuous wave radar for humanitarian demining. The radar has the important property that it transmits signals at eight frequencies at the same time. Due to this fact and the use of a DDS for the basic signal generation, the total data acquisition time for collecting a set of data sufficient for one synthesized range profile is only 3.3 msec. The total bandwidth of the system is 4445 MHz. The electrical performance allows for sidelobes in the synthesized range profile of better than -50 dB RMS. The bistatic antennas are Archimedean spirals with dual arms. They are balanced and symmetrically fed. The paper shows the diagram of the prototype of the antenna.

Keywords

CW radar; ground penetrating radar; landmine detection; radar antennas; spiral antennas; 4445 MHz; Archimedean spiral antenna; DDS; IRCTR; balanced antenna; bistatic antennas; data acquisition time; dual arms; electrical performance; ground penetrating radar; humanitarian demining; multifrequency SFCW radar; sidelobes; signal generation; stepped frequency continuous wave radar; symmetrically fed antenna; synthesized range profile; system bandwidth; Delay lines; Frequency; Permittivity; Power combiners; Radar antennas; Receiving antennas; Soil; Transmitters; Transmitting antennas; Ultra wideband antennas;

fLanguage

English

Publisher

iet

Conference_Titel

RADAR 2002

Conference_Location

Edinburgh, UK

ISSN

0537-9989

Print_ISBN

0-85296-750-0

Type

conf

DOI

10.1109/RADAR.2002.1174681

Filename

1174681