A five channel low cost GPS receiver

Author

Estes, Lee E. ; Fain, Gilbert

Author_Institution

Southeastern Massachusetts Univ., North Dartmouth, MA, USA

fYear

1990

fDate

20-23 Mar 1990

Firstpage

198

Lastpage

204

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PLANS.1990.66177

Filename

66177