Abstract
Based upon the diagonal loading technique and the structure of the space-time adaptive processors, a novel anti-jamming method of satellite navigation is proposed. According to matrix inverse theorem, the range of the diagonal loading values for space-time adaptive wideband signal processing structure is deduced, and the optimum equation of diagonal loading beam forming algorithm of space-time structure is obtained. Then, by the analysis of two-dimensional oriented vector in direction of the perturbation interference, the wideband interference covariance matrix obtained in the weights training period is modified. Finally, the optimum weight of multi-linear constrained space-time adaptive beam-forming alogrithm is derived for anti-interference filter processing. The new method effectively widens the null steering beams when discrepancy happens. The computer simulation results prove the robustness of the proposed method.
| Original language | English |
|---|---|
| Pages (from-to) | 67-74 |
| Number of pages | 8 |
| Journal | Journal of Beijing Institute of Technology (English Edition) |
| Volume | 22 |
| Issue number | 1 |
| Publication status | Published - Mar 2013 |
Keywords
- Beamforming
- Diagonal loading
- Space-time adaptive processing
- Steering vector