现代电子技术2012，Vol.35Issue(5)：39-42,4.
一种改进的高动态GPS载波组合跟踪环路算法
An improved combination loop algorithm for high dynamic GPS carrier tracking
摘要
Abstract
For high dynamic environment, the received signal carrier frequency can produce a large Doppler shift and rate of change, so traditional GPS carrier tracking loop can not guarantee reliable tracking. A new tracking loop algorithm is introduced, which is second-order cross-product automatic frequency control loop (CPAFC) auxiliary third-order phase-locked loop (PLL) with the traction of four-quadrant frequency discriminator (FQFD). The jet propulsion laboratory (JPL) high dynamic vector model tests show that the algorithm not only can quickly locked but also accurate tracking the carrier signal to achieve the navigation data demodulation in high dynamic environment whose jerk is up to 100 g/s.关键词
四相鉴频/叉积自动频率控制环/高动态/GPS/载波跟踪Key words
FQFD/CPAFC/high dynamic/GPS/carrier-tracking分类
信息技术与安全科学引用本文复制引用
冯晓明,廉保旺,何伟..一种改进的高动态GPS载波组合跟踪环路算法[J].现代电子技术,2012,35(5):39-42,4.基金项目
国家自然科学基金(61174194) （61174194）
航空科学基金(20090196004) （20090196004）
西北工业大学研究生创业种子基金(Z2011110) （Z2011110）
