Title :
A five channel low cost GPS receiver
Author :
Estes, Lee E. ; Fain, Gilbert
Author_Institution :
Southeastern Massachusetts Univ., North Dartmouth, MA, USA
Abstract :
A progress report on a program to develop a low-cost GPS (Global Positioning System) receiver for marine applications is presented. The unit described is a highly digital, mostly one bit, software intensive receiver. The unit uses one RF mixer to baseband, a one-bit 2-MHz A/D (analog-to-digital converter), and five digital parallel signal processing channels. An AMLE (approximate maximum likelihood estimator) technique is used to acquire signals, and low dynamic loops are used for tracking. General principles guiding the design and a description of the receiver are given
Keywords :
aerospace computing; computerised navigation; computerised signal processing; marine systems; radio receivers; radionavigation; satellite relay systems; signal detection; tracking systems; A/D convertor; GPS receiver; Global Positioning System; RF mixer; approximate maximum likelihood estimator; computerised navigation; digital parallel signal processing channels; dynamic loops; marine applications; tracking; Application software; Baseband; Costs; Digital signal processing; Global Positioning System; Hardware; Radio frequency; Sampling methods; Satellites; Tracking loops;
Conference_Titel :
Position Location and Navigation Symposium, 1990. Record. The 1990's - A Decade of Excellence in the Navigation Sciences. IEEE PLANS '90., IEEE
Conference_Location :
Las Vegas, NV
DOI :
10.1109/PLANS.1990.66177
