This project will address the development of multipath suppression techniques that are needed to support radar-guided close-combat missile applications. Underscoring this effort are advanced signal processing algorithms based on higher-order spectra (HOS) techniques, such as the bispectrum. HOS-based techniques have shown a great promise in terms of accuracy, robustness and performanceimprovement over autocorrelation (or power spectrum)-based methods in the face of statistical uncertainties of multipath environments. Consequently, the development and application of HOS-based algorithms to the radar missile guidance problem has become timely. Three directions are covered during this exploratory development: (1) development of higher-order spectra algorithms for identification and suppression of multipath with emphasis on bicepstral approaches; (2) development of real-time serial and parallel signal fusion techniques to achieve signal reconstruction after multipath suppression; and (3) verification of the performance and complexity of the new algorithms using realistic synthetic data.
Benefits: Enhanced missile guidance, reduction of both the multipath error associated with the missile and yhe complex target. Commercial application includes: (1) seismic explosion; (2) non-destructive evaluation; (3) echo cancellation; (4) blind equilization; (5) image processing; and (6) radioastronomy.
Keywords: Multipath Suppression Missile Guidance Radar Clutter Bispectrum Bicepstrum Higher-Order Spectra Tracking of Range and Bearing Signal Fusion
