Title :
Low bounds of the GDOP in absolute-range based 2-D wireless location systems
Author_Institution :
WSPN Lab. Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
The geometric dilution of precision (GDOP) in absolute-range based 2-dimension (2-D) wireless location systems is investigated with emphasis on its low bounds. Angle of coverage (AOC) is introduced as a parameter to describe the geometry between a target and measuring points. With the AOC, it is proved that when the AOC is less than π/2, the GDOP cannot reach 2/√N, where N is the number of the measuring points. Instead of 2/√N, a new low bound of the GDOP is derived as well as its corresponding geometry. The low bound is a function of both the AOC and N.
Keywords :
wireless channels; 2D wireless location systems; GDOP; absolute-range; angle of coverage; geometric dilution of precision; low bounds; measuring points; target points; Wireless communication; Yttrium; 2-D location system; GDOP; absolute-range; angle of coverage; wireless location system;
Conference_Titel :
Information Science and Digital Content Technology (ICIDT), 2012 8th International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-4673-1288-2
