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Asymmetric Double-Sideband Composite Signal and Dual-Carrier Cooperative Tracking-Based High-Precision

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Summary
This summary is machine-generated.

This study introduces a new localization signal and tracking method to improve positioning accuracy in Communication Navigation Fusion Systems (CNFSs). The novel approach enhances signal tracking, leading to more reliable and precise navigation capabilities.

Keywords:
5Gcommunication and navigation fusion systemdouble-sideband signalfuzzy controlsignal combination processing

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Area of Science:

  • Navigation Systems Engineering
  • Signal Processing
  • Control Systems

Background:

  • Existing Communication Navigation Fusion Systems (CNFSs) face challenges in positioning capability and reliability.
  • Multipath propagation effects in wireless environments degrade navigation accuracy.

Purpose of the Study:

  • To propose an Asymmetric Double-Sideband Composite Localization Signal (ADCLS) for enhanced CNFS performance.
  • To develop a dual-carrier aggregation dual-code loop tracking mechanism with fuzzy control for signal optimization.

Main Methods:

  • Integration of an embedded signal into the original positioning signal.
  • Optimization of the code loop using fuzzy control.
  • Processing of ADCLS as an asymmetric double-sideband signal for joint extraction.
  • Experimental validation using the 5G New Radio (NR) Time-Delay Line (TDL) channel model.

Main Results:

  • The proposed method significantly improves the tracking accuracy of the code loop.
  • Enhanced tracking accuracy was observed for the main carrier loop.
  • Overall ranging accuracy was demonstrably improved.

Conclusions:

  • The ADCLS and fuzzy control-based tracking mechanism effectively enhance positioning reliability and accuracy in CNFSs.
  • This approach offers a viable solution for mitigating multipath effects and improving navigation performance.