# Asymmetric Double-Sideband Composite Signal and Dual-Carrier Cooperative Tracking-Based High-Precision Communication–Navigation Convergence Positioning Method

## TL;DR

This paper introduces a new high-precision positioning method combining communication and navigation signals for better accuracy and reliability.

## Contribution

A novel ADCLS signal and dual-carrier tracking mechanism with fuzzy control are proposed for improved positioning.

## Key findings

- The ADCLS signal improves code loop and carrier loop tracking accuracy.
- The method enhances ranging accuracy in multipath propagation environments.
- Experimental results validate the effectiveness of the proposed positioning approach.

## Abstract

To enhance positioning capability and reliability within existing Communication Navigation Fusion Systems (CNFSs), this paper proposes an Asymmetric Double-Sideband Composite Localization Signal (ADCLS) and a dual-carrier aggregation dual-code loop tracking mechanism with fuzzy control. By organically integrating an embedded signal into the original positioning signal, the code loop is optimized via fuzzy control, while the ADCLS signal is processed as an asymmetric double-sideband signal for joint signal extraction. Experimental validation employs the 5G New Radio (NR) Time-Delay Line (TDL) channel model to simulate multipath propagation effects. The results show that this method improves the tracking accuracy of the code loop and the main carrier loop, thereby enhancing the ranging accuracy.