Modeling and Development of INS-Aided PLLs in a GNSS/INS Deeply-Coupled Hardware Prototype for Dynamic Applications
| Autor: | Hongping Zhang, Chuang Shi, Jingnan Liu, Xiaoji Niu, Yalong Ban, Tisheng Zhang |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Engineering
PLL tracking error hardware prototype business.industry Scalar (physics) steady state error model lcsh:Chemical technology Tracking (particle physics) GNSS/INS deeply-coupled integration Biochemistry Transfer function Article Atomic and Molecular Physics and Optics Analytical Chemistry Tracking error Phase-locked loop Development (topology) Inertial measurement unit GNSS applications INS-aided PLLs lcsh:TP1-1185 Electrical and Electronic Engineering business Instrumentation Computer hardware |
| Zdroj: | Sensors (Basel, Switzerland) Sensors Volume 15 Issue 1 Pages 733-759 Sensors, Vol 15, Iss 1, Pp 733-759 (2015) |
| ISSN: | 1424-8220 |
| Popis: | A GNSS/INS deeply-coupled system can improve the satellite signals tracking performance by INS aiding tracking loops under dynamics. However, there was no literature available on the complete modeling of the INS branch in the INS-aided tracking loop, which caused the lack of a theoretical tool to guide the selections of inertial sensors, parameter optimization and quantitative analysis of INS-aided PLLs. This paper makes an effort on the INS branch in modeling and parameter optimization of phase-locked loops (PLLs) based on the scalar-based GNSS/INS deeply-coupled system. It establishes the transfer function between all known error sources and the PLL tracking error, which can be used to quantitatively evaluate the candidate inertial measurement unit (IMU) affecting the carrier phase tracking error. Based on that, a steady-state error model is proposed to design INS-aided PLLs and to analyze their tracking performance. Based on the modeling and error analysis, an integrated deeply-coupled hardware prototype is developed, with the optimization of the aiding information. Finally, the performance of the INS-aided PLLs designed based on the proposed steady-state error model is evaluated through the simulation and road tests of the hardware prototype. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|