Frequency diversity in multistatic radars

This paper presents the model and analysis of a frequency-diverse radar system. Multistatic radar systems provide an inherent spatial diversity by processing signals from different platforms which view a potential target from different aspect angles. By using different frequencies at each platform, an additional diversity gain can be obtained on top of the advantages of spatial diversity. Here, since platforms are distributed spatially, true time delay is used at each platform to align the sample look point in time. The signal-to-interference-plus-noise ratio and probability of detection are derived for the case for the frequency diverse and the non-frequency diverse cases. Comparing these two cases illustrates the significant benefits of frequency diversity. In addition, performances of optimum and suboptimum decentralized algorithms are compared.

[1]  Alfonso Farina,et al.  Multistatic radar detection: synthesis and comparison of optimum and suboptimum receivers , 1983 .

[2]  R. Klemm.  Principles of Space-Time Adaptive Processing , 2002 .

[3]  James Ward,et al.  Space-time adaptive processing for airborne radar , 1998 .

[4]  D. Bruyere,et al.  Performance of multistatic space-time adaptive processing , 2006, 2006 IEEE Conference on Radar.

[5]  A. Farina,et al.  Overview of detection theory in multistatic radar , 1986 .

[6]  M. Jackson.  The geometry of bistatic radar systems , 1986 .

[7]  Alexander M. Haimovich,et al.  Spatial Diversity in Radars—Models and Detection Performance , 2006, IEEE Transactions on Signal Processing.

[8]  M.C. Wicks,et al.  Multistatic radar systems signal processing , 2006, 2006 IEEE Conference on Radar.

[9]  D. Bruyere,et al.  Optimum and decentralized detection for multistatic airborne radar , 2007, IEEE Transactions on Aerospace and Electronic Systems.

[10]  Pramod K. Varshney,et al.  Distributed Detection and Data Fusion , 1996 .

[11]  Richard Klemm,et al.  Introduction to space-time adaptive processing , 1998 .

[12]  A.V. Mrstik,et al.  Multistatic-Radar Binomial Detection , 1978, IEEE Transactions on Aerospace and Electronic Systems.

[13]  William L. Melvin,et al.  Bistatic STAP: application to airborne radar , 2002, Proceedings of the 2002 IEEE Radar Conference (IEEE Cat. No.02CH37322).

[14]  Braham Himed,et al.  Bistatic STAP performance analysis in radar applications , 2001, Proceedings of the 2001 IEEE Radar Conference (Cat. No.01CH37200).

[15]  Raviraj S. Adve,et al.  Space-time adaptive processing for distributed aperture radars , 2004, 2004 International Waveform Diversity & Design Conference.

[16]  E. Hanle,et al.  Survey of bistatic and multistatic radar , 1986 .