Multifrequency radar signals

Research output: Contribution to conferencePaperpeer-review

Abstract

A multifrequency radar signal is considered. It employs M subcarriers simultaneously. The subcarriers are phase modulated by M different sequences that constitute a complementary set. Such a set can be constructed, for example, from the M cyclic shifts of a perfect phase-coded sequence of length M (e.g., P4). The subcarriers are separated by the inverse of the duration of a phase element tb, yielding Orthogonal Frequency Division Multiplexing (OFDM), well known in communications. The signal exhibits a thumbtack ambiguity function with delay resolution of tb/M. The power spectrum is relatively flat, with width of M/tb. The signal can be constructed by power combining M fixed-amplitude signals. The resulting signal, however, is of variable amplitude.

Original languageEnglish
Pages683-688
Number of pages6
StatePublished - 2000
EventIEEE 2000 International Radar Conference - Alexandria, VA, USA
Duration: 7 May 200012 May 2000

Conference

ConferenceIEEE 2000 International Radar Conference
CityAlexandria, VA, USA
Period7/05/0012/05/00

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