四川大学学报：工程科学版2012，Vol.44Issue(6)：159-165,7.
基于辅助与合成孔径的群用户合作导航方法
Collaborative Navigation for Group Users Based on Assistance and Synthetic Aperture
摘要
Abstract
The availability of Global Navigation Satellite System (GNSS) receiver is challenged by urban shading and electronic jam- ming, which would induce receiver out of work and obstruct applications of GNSS. The collaborative navigation methodology for GNSS group users was studied, and user assistance for urban environments and generalized adaptive digital beamforming (ADBF) based on dynamic synthetic aperture for anti-jamming was proposed. The architectures of decentralized and distributed networks were described, and assisted positioning methodology was presented. In addition, the application of double frequency, elimination for direction of arrival (DOA) ambiguous was presented for generalized ADBF, which could avoid grating lobe induced by large spacing antennas. Simulation results demonstrated that, for 60 seconds GNSS signal outage, the positioning error of user assistance could be reduced from 280 m to about 30 m, compared to inertial navigation; and generalized ADBF removed the grating lobe effectively.关键词
GNSS/干扰抑制/自适应数字波束形成/Ad-hoc网络Key words
GNSS/interference suppression/adaptive digital beamforming/Ad-hoc networks分类
信息技术与安全科学引用本文复制引用
刘恩晓,张光华,孟维晓..基于辅助与合成孔径的群用户合作导航方法[J].四川大学学报：工程科学版,2012,44(6):159-165,7.基金项目
高等学校博士学科点专项科研基金资助项目 （）
国家自然科学基金资助项目 （）
