Four-way signal processing carrier phase lock loop in ionosphere scintillation environment

被引：0

作者：

Liu, Feng ^{[1
]}

Gao, Yuan ^{[1
]}

Long, Teng ^{[1
]}

机构：

[1] School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China

来源：

Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology | 2014年 / 34卷 / 03期

关键词：

Carrier phase - Filter parameter - High intensity - Phase discriminators - Phase lock loop (PLL) - Real time - Satellite navigation - Signal ratios;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A Kalman filter was proposed to solve loss of lock in ionosphere scintillation environment based on four-way signal processing carrier phase locked loop (quad-PLL). Extra two ways signal was added to correct phase discriminator's output with purpose of expanding phase pull-in range, while filter parameters were adjusted adoptively according to real-time carrier to signal ratio. Loss of lock was avoided effectively when amplitude fading and phase mutation were caused by ionosphere scintillation occurs. The simulation result shows that this proposed PLL can keep tracking in the high-intensity strength and instantaneous ionosphere scintillation.

引用

页码：322 / 326