GNSS Vector Correlator: Harnessing Satellite Direction Cosine Diversity for Robust Positioning
Abstract
University of Illinois Grant #: FA9453-15-1-0075 “GNSS Vector Correlator: Harnessing Satellite Direction Cosine Diversity for Robust Positioning” Abstract We propose to investigate the vector correlator as an alternative to the bank of parallel scalar correlators typically found in the conventional tracking receiver design. Precise code and carrier replicas are generated for each differential offset in a computationally efficient way, and a composite replica signal is used to correlate against the raw signal arriving from the receiver front-end. By searching in the space-time domain, the overall correlation peak will be steeper and better defined than any individual pseudorange-space correlation peak. This “direction cosine diversity” is expected to lead to suppression of multipath effects, as well as the receiver’s ability to maintain lock in low signal-to-noise environments.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 18, 2016
- Source ID
- FA94531510075
Entities
People
- Grace Xingxin Gao
Organizations
- Air Force Research Laboratory
- United States Air Force
- University of Illinois Urbana–Champaign