A Three-layer Parallel Implementation of the DPE Receiver based on GPU
作者单位：Tianjin Key Lab for Advanced Signal ProcessingCivil Aviation University of China
会议名称：《第十四届中国卫星导航年会》
会议日期：2023年
学科分类：08[工学] 080401[工学-精密仪器及机械] 081105[工学-导航、制导与控制] 0804[工学-仪器科学与技术] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程]
摘 要：The Popular of Global Navigation Satellite System(GNSS) is attributed to its good ***,the performance of a conventional GNSS receiver is severely degraded or even failed to provide services in complex *** Position Estimation(DPE) combines all the visible satellite signals for energy accumulation in the navigation domain first,and then the navigation solution is estimated directly from the accumulation *** the navigation performance of GNSS can be effectively improved in complex environments by ***,the signal accumulation of DPE requires calculating the correlation values of all the visible satellite signals at each candidate grid in the navigation domain,the computation load of which limits its *** alleviate this problem,a GPU-based parallel implementation of the DPE receiver is designed,which decomposes the operations involved in the joint accumulation into three levels of parallel *** effectiveness of the designed parallel implementation of the DPE receiver is verified by experiment *** the available hardware in our laboratory,the designed DPE implementation improves the efficiency to approximately 146 times on average over the conventional DPE implementation.