Correction of DVB-T2 signal cross-ambiguity function for passive radar

Author

Kovalev, Dmitry A. ; Veremyev, Vladimir I.

Author_Institution

Res. Inst. “Prognoz”, St. Petersburg State Electrotech. Univ. “LETI”, St. Petersburg, Russia

fYear

2014

Firstpage

1

Lastpage

4

Abstract

This paper provides an overview of the Digital Video Broadcasting-Second Generation Terrestrial (DVB-T2) signal structure and using this signal in passive radar systems. The cross-ambiguity function (CAF) of the DVB-T2 signal is analyzed. The specific structure of the DVB-T2 signal is a reason of the unwanted deterministic peaks appearing in the CAF in addition to the desired reflected target echo. These undesired peaks produced by pilot carriers and guard intervals can mask the target echo and cause false alarms. A CAF correction method based on the modification pilot carriers and blanking guard intervals of the reference DVB-T2 signal is proposed. The total losses of the DVB-T2 signal power after correction is about 14% (-0.64dB).

Keywords

digital video broadcasting; passive radar; radar signal processing; CAF correction method; DVB-T2 signal cross-ambiguity function correction; digital video broadcasting-second generation terrestrial signal structure; false alarms; guard interval blanking; passive radar systems; pilot carrier modification; reflected target echo; target echo; Digital video broadcasting; Frequency estimation; OFDM; Passive radar; Surveillance; Transmitters; DVB-T2; cross-ambiguity function; passive coherent location; passive radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (Radar), 2014 International

Type

conf

DOI

10.1109/RADAR.2014.7060403

Filename

7060403