Cross ambiguity function analysis of the '8k-mode' DVB-T for passive radar application

One of non-cooperative illuminators recently considered for passive radar applications is the DVB-T (Digital Video Broadcasting- Terrestrial) station. The thumbtack ambiguity function of the DVB-T signal in addition to being stationary makes such signal a good candidate for such applications. However, certain ambiguities in its ambiguity function necessitates certain issues to be carefully considered when DVB-T signals are to be utilized in these scenarios. In this paper, after studying the origins of these ambiguities, we propose special processing schemes to resolve them.