Novatel OM-20000077 user manual Introduction, Superstar II GPS Card

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Chapter 1

Introduction

The SUPERSTAR II, see Figure 1 below, is a quality GPS receiver for embedded applications. The SUPERSTAR II has robust signal tracking capability even under difficult signal conditions.

The SUPERSTAR II is a complete GPS OEM sensor that provides 3D navigation on a single compact board with full differential capability. The SUPERSTAR II is a 12-channel GPS receiver that tracks all in-view satellites. It is fully autonomous such that once power is applied, the SUPERSTAR II automatically searches, acquires and tracks GPS satellites. SUPERSTAR II receivers also have Satellite Based Augmentation System (SBAS) capability, for example WAAS and EGNOS. When a sufficient number of satellites are tracked with valid measurements, the SUPERSTAR II produces a 3-D position and velocity output with an associated figure of merit (FOM).

Figure 1: SUPERSTAR II Receiver

This L1 GPS receiver is available in 2 formats:

as an OEM board

within the FlexPak-SSII enclosure

1.1SUPERSTAR II GPS Card

The main features of the SUPERSTAR II are:

Decodes differential corrections encoded in the RTCM message format

Twelve channel correlator for all-in-view satellite tracking

Single chip RF front end

SBAS support

Active, and passive, antenna support

Single 5V power input

Complete L1 GPS receiver and navigator on a single compact board

Two general purpose input lines

One general purpose input/output (GPIO) line

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SUPERSTAR II User Manual Rev 3

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Contents Superstar Proprietary Notice Table of Contents Appendices Tables Figures Software License Software License Firmware Updates Contact InformationElectrostatic Discharge CE Notice Warranty Policy Related Publications Congratulations ScopeRelated Publications Introduction Superstar II GPS CardFlexPak-SSII Introduction ChapterChapter Introduction System Architecture Receiver SpecificationsPhysical Characteristics Radio Frequency RF SectionOptional LNA Power Supply Enclosure and Wiring HarnessPrincipal Power Supply GPS AntennaInstallation Typical System Configuration Reference DescriptionEquipment Interconnection Chapter InstallationElectrostatic Discharge Serial ConnectionInstallation Chapter Installation ConsiderationsPower Connection Antenna LocationData Link Connectors and Connector Pins Assignment1 J1 Interface and Power Connector Base Station and Rover Units SeparationRF Connector J2 Serial Data InterfaceMemory Back-Up Preamplifier Power Pass-Through Antenna SupplyProtocol Selection and Non Volatile Memory RF InputUse of Discretes Discretes IP2 and IP3 functionsNon-Volatile Memory Data Default ConfigurationNon Volatile Memory Installation Overview Description ReferenceTypical Operational Configuration Reference Description OperationGetting Started Serial Port Default SettingsCommunications with the Receiver Operation ChapterOperational Information Power-Up InformationBoot Information Chapter OperationReceiver States Configurable ParametersData Requests Self-Test Mode Dead-Reckoning Mode Built-In Status TestsDatum Support RTCM1 Differential GPS Corrections Fixed Message FormatsRTCM-Format Messages Chapter Message Formats RTCM2 Delta Differential GPS Corrections FixedRTCM9 Partial Satellite Set Differential Corrections Nmea Format Data Messages Message Formats ChapterSingle-Point or Autonomous GPS System ErrorsPositioning Modes of Operation Satellite-Based Augmentation System Sbas Positioning Modes of Operation ChapterChapter Positioning Modes of Operation Sbas ReceiverSbas Messages Positioning Modes of Operation Chapter Troubleshooting Cable Lengths Vs. GainTroubleshooting Chapter Superstar II Family Performance Technical SpecificationsAppendix a Technical Specifications Appendix a Output MessagesAppendix a Technical Specifications Mechanical DrawingConnector Pin Assignment J1 Interfaces and Power Connector Pin Assignment3 I/O Electrical Characteristics O Signals Voltage LimitsFlexPak-SSII Specifications Appendix BFlexPak Status Indicators Status IndicatorsAppendix B FlexPak-SSII Specifications Port Pin-OutsCables FlexPak-SSII Specifications Appendix BAutomobile Power Adapter Cable NovAtel part number 3.2 13-Pin Deutsch to DB9 Serial Cable NovAtel part number FlexPak 13-Pin Serial CableDevelopment Kit Setup and OperationNormal Setup DescriptionDgps Setup with the FlexPak-SSII Differential GPS SetupStarView Software Installation Appendix C Antenna SpecificationsCoaxial Cable Specifications Cable SelectionAntenna Gain Depending on Cable Length Required Antenna Specifications Appendix CGeodetic Active Antenna Typical Current Consumption Versus Antenna GainPassive Antenna Appendix C Antenna SpecificationsActive Antenna Recommended Geodetic Active AntennasPassive Antenna Specifications Patch Element GPS Antenna 201-990146-716 MCX, +12 dBGPS Antenna 201-990147-606 +26 dB Antenna Specifications Appendix C Appendix D Standards/ReferencesTime-To-First-Fix Ttff Appendix ETtff and Satellite Acquisition Re-AcquisitionUpdating Receiver Firmware Utility InstallationAppendix F System RequirementsUpdating Receiver Firmware Appendix F Starting Software and Options UpdateRegistration Key Accepted Programming Success Appendix F Updating Receiver FirmwareGPS System Design Appendix GGPS Overview Space SegmentUser Segment Height RelationshipsControl Segment Appendix G GPS OverviewGPS Positioning GPS Overview Appendix GSingle-Point vs. Relative Positioning Accuracy versus Precision1Real-time vs. Post-mission Data Processing MultipathStatic vs. Kinematic Positioning Why Does Multipath Occur? Consequences of Multipath ReceptionHardware Solutions For Multipath Reduction Antenna Site SelectionGPS Signal Multipath vs. Increased Antenna Height Antenna DesignsGPS Overview Appendix G Appendix H Glossary of TermsGlossary of Terms Appendix H Appendix H Glossary of Terms Glossary of Terms Appendix H Appendix AcronymsAcronyms Appendix Appendix Acronyms Index GEO, Sbas IndexIndex Index OM-20000077 Rev 2004/03/11