Study On Adaptive Jamming Suppression And Error Correction For Wing Conformal Full Polarized Array Radar

This dissertation mainly addresses the key techniques for jamming-suppession inthe wing conformal space-polarization radar, such as the foundation of thespace-ploarization signal model, the analysis and correction of system errors, and thealgorithm for adaptive jamming-suppression. The main topics of this dissertation arelisted as follows:1. The operation modes of this radar are discussed. Considering the flutterphenomenon in flight, the causes are analyzed and the space-ploarization signalmodel is estabilshed.2. Symtem errors, including channel mismathing error, mutual coupling error, phasecenter error and transmitting error, which affect the performance of jammingsuppression are discussed. After that, quantitative analysis of the relationshipbetween system error and the signal interference noise ratio (SINR) is proposedthrough simulation.3. Based on the speciality of fractal dimension of space-polarization, a novel methodthat dividing the system errors into polarization domain errors and space domainerrors and implementing error correction in the two different domains respectivelyis developed, corresponding correction methods are also proposed.4. To deal with the problem that the performance of the traditional space-polarizationalgorithms reduces with finite snapshots, a method based on subspacereconstruction is proposed, under which the output SINR is improved effectively.