A5085538593- Radar Systems and Signal Processing
- GNSS positioning and interference
- Direction-of-Arrival Estimation Techniques
- Satellite Communication Systems
Beijing Satellite Navigation Center
2022
Driven by improvements in satellite internet and Low Earth Orbit (LEO) navigation augmentation, the integration of communication has become increasingly common, further improving capabilities based on constellations a significant challenge. In context existing Orthogonal Frequency Division Multiplexing (OFDM) systems, this paper proposes new ranging signal design method an LEO constellation. The Satellite Communication Constellation Block-type Pilot (LSCC-BPR) is superimposed block-type form...
Aiming at the issue that navigation augmentation signal interferes with normal received of LEO-NA (Low Earth Orbit Navigation Augmentation) payload in system, a spatial self-interference cancellation algorithm based on WIMUSIC (Weighted Improved Multiple Signal Classification) and LCMV (Linearly Constrained Minimum Variance) is proposed. First, new covariance matrix obtained by reconstructing data. The corresponding noise subspace constructed decomposing singular value decomposition. Then,...