公开(公告)号：US06577265B2

公开(公告)日：2003-06-10

申请号：US10043030

申请日：2002-01-09

申请人： Shelly D. Dalton ,  Lawrence B. Cornman ,  Robert K. Goodrich ,  Nathaniel Beagley

发明人： Shelly D. Dalton ,  Lawrence B. Cornman ,  Robert K. Goodrich ,  Nathaniel Beagley

IPC分类号： G01S1300

CPC分类号： G01S13/951 ,  G01S13/524 ,  Y02A90/18

摘要： A multi-stage processing system receives data from signals that indicate information related to scatterers, such as signals from a Doppler scanning system. The multi-stage processing system tracks allowed processing time for the data. The multi-stage processing system performs a first stage of processing for the data to generate first estimates of spectral moments for the signals. The multi-stage processing system performs additional stages of processing for the data as the allowed processing time permits and stops the additional stages of processing for the data when the allowed processing time expires. The additional stages of processing may comprise generating second estimates for at least some of the spectral moments. The additional stages of processing may use methods having increasing complexity and accuracy.