Title :
Passive position finding of stationary targets: Based on circulation and the least square concept
Author :
Ahmadian, A. ; Mahdavi, Ali ; Jamshidi, Z.
Author_Institution :
Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
A method for two dimensional position finding of stationary targets whose bearing measurements suffers from indeterminable bias and random noise has been proposed. The algorithm uses convex optimization to minimize an error function which has been calculated based on circular as well as linear loci of error. Taking into account a number of observations, certain modifications have been applied to the initial crude method so as to arrive at a faster, more accurate method. Simulation results of the method illustrate up to 30% increase in accuracy compared with the well-known least square filter.
Keywords :
convex programming; direction-of-arrival estimation; least squares approximations; random noise; target tracking; DOA; bearing measurement; circular loci of error; circulation method; convex optimization; error function; least square concept; linear loci of error; passive position finding; random noise; stationary target; two dimensional position finding; Accuracy; Convex functions; Iterative methods; Measurement uncertainty; Noise measurement; Position measurement; Smoothing methods; DOA; bearing measurement; circulation; convex optimization; least square;
Conference_Titel :
Intelligent Signal Processing and Communications Systems (ISPACS), 2012 International Symposium on
Conference_Location :
New Taipei
Print_ISBN :
978-1-4673-5083-9
Electronic_ISBN :
978-1-4673-5081-5
DOI :
10.1109/ISPACS.2012.6473517
