Title :
Reducing Front-End Bandwidth May Improve Digital GNSS Receiver Performance
Author :
Curran, James T. ; Borio, Daniele ; Lachapelle, Gérard ; Murphy, Colin C.
Author_Institution :
Dept. of Electr. Eng., Univ. Coll. Cork, Cork, Ireland
fDate :
4/1/2010 12:00:00 AM
Abstract :
A novel evaluation of filtering and quantization losses for weak DS-CDMA receivers is presented. Using this method, joint optimization of filter center frequency and bandwidth is conducted for one-, two- and three-bit quantizers. It is demonstrated that a joint loss-analysis of these effects is necessary to optimize front-end design.
Keywords :
bandwidth compression; code division multiple access; filtering theory; optimisation; radio receivers; satellite navigation; spread spectrum communication; DS-CDMA receivers; GNSS; bandwidth reduction; filter center frequency; filtering; front-end design; optimization; quantization loss; Code division multiple access (CDMA); correlation receiver; front-end filtering; global navigation satellite system (GNSS); global positioning system (GPS); quantization;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2009.2037860
