New Approach of High Sensitivity Techniques Using Collective Detection Method with Multiple GNSS Receivers

Area of Science:

• Satellite Navigation Systems
• Signal Processing
• Cooperative Navigation

Background:

• Global Navigation Satellite System (GNSS) signal acquisition is challenging in harsh environments.
• Collective Detection (CD) offers potential for direct positioning and high-sensitivity acquisition.
• Existing CD methods require optimization for diverse receiver conditions.

Purpose of the Study:

• To develop a novel CD architecture for robust satellite signal processing in adverse conditions.
• To propose an adaptive signal acquisition method based on real-time receiver reception quality.
• To enhance cooperative navigation by intelligently selecting reference receivers.

Main Methods:

• Implementation of a new CD architecture integrating multiple receivers.
• Development of metrics for optimal weighting and selection of visible satellites.
• Analysis of satellite selection based on elevation, C/N0, and Geometric Dilution of Precision (GDOP).

Main Results:

• The proposed CD approach demonstrated effectiveness in challenging GNSS environments.
• Optimal satellite selection based on defined parameters significantly improved signal acquisition.
• Cooperative navigation using selected reference receivers proved successful.

Conclusions:

• The developed CD architecture provides a robust solution for satellite signal acquisition in difficult environments.
• Intelligent selection of receivers and satellites enhances navigation system performance.
• This smart cooperative navigation concept offers a promising direction for future GNSS applications.