Aerospace and Defense Archives - Page 34 of 53 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

Aerospace and Defense

September 30, 2014

India Space Officials Release IRNSS ICD

IRNSS-1B satellite in clean room. ISRO photo

A signal-in-space (SIS) interface control document (ICD) for the standard positioning service (SPS) of the Indian Regional Navigation Satellite System (IRNSS) is available for download from the Indian Space Research Organization (ISRO) website.

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By Inside GNSS
September 24, 2014

OCX Program Restructured, Delayed Again

Editor’s Note: An exclusive interview with Gen. Hyten is available here with more details.

Details are emerging about another restructuring of the contract for the new GPS ground system, a deal that pushes completion of the project back another two years and recasts the remaining work to fit within the Air Force’s strained financial profile.

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By Dee Ann Divis
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September 19, 2014

IFEN Launches SX3 Software Receiver

IFEN SX3

IFEN introduced its new SX3 GNSS software receiver, a major upgrade of the company’s SX-NSR, last week at the ION GNSS+ conference in Tampa, Florida. Redesigned hardware frontends feature four wideband RF frequency bands that can be split into a maximum of eight sub-bands per unit. At the same time the bandwidth has been expanded to a full 55 megahertz, offering additional signal power especially in the Galileo E5 band.

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By Inside GNSS
September 16, 2014

ESA Outlines Efforts to Rescue Wayward Galileo Satellites

Orbits of the fifth and sixth Galileo satellites launched together on August 22, 2014, in red, compared to their intended position, in dashed green, and the position of the four IOV satellites launched in 2011 and 2012 in solid green. This view looks down over Earth’s South Pole, helping to illustrate how the two satellites’ orbital inclination relative to the equator is less than was intended ESA illustration.

The European Space Agency (ESA) released dramatic illustrations today (September 16, 2014) of the orbital locations of the two errant Galileo spacecraft launched on August 22, the intended orbit, and the locations of four In-Orbit Validation (IOV) satellites.

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By Inside GNSS
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September 6, 2014

Munich Satellite Navigation Summit 2015

The Antiquarium in the Residenz München

The Munich Satellite Navigation Summit will take place at the Residenz Muenchen in Munich, Germany on March 24 – 26, 2015.

Register here

The theme for this year’s summit is “Future of PNT – A Glance into the Crystal Ball”.

The technical program includes plenary discussions and updates on the main activities in worldwide satellite navigation systems, including:

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By Inside GNSS
August 29, 2014

Air Force Weighs Switching to Multiyear GPS Procurements

The Air Force says it might ask Congress for permission to implement bigger buys of GPS satellites beginning in fiscal year 2016 (FY16) once it sorts out whether to drop Lockheed Martin as the GPS III prime contractor and switch to a different manufacturer for the navigation payload.

The department told Congress in a recent report on multiyear procurement (MYP) that while its current approach “allows the government the flexibility to adapt to a changing budget profile and constellation needs, it prevents the program from realizing savings that MYP could provide.”

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By Inside GNSS

Digital Nav Payload Emerges as Factor in GPS III Re-Bid

The advantages of a digital navigation payload, a technology singled out by both the House and Senate for $20 million worth of research support, appears to be a key factor in the Air Force’s search for a new GPS III contractor.

The digital payload “is a direct complement to the Production Readiness Alternate Sources Sought released in June,” Air Force officials said in an emailed response to questions about the technology and how it fits into the ongoing search for new GPS III suppliers.

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By Inside GNSS
August 15, 2014

As Galileo FOCs Near Launch, EC Holds Public Consultation on Open Service ICD

Installation of Galileo FOC satellite “Doresa” on the payload dispenser system. The first of two Galileo navigation satellites has been integrated on its payload dispenser system at Europe’s Spaceport in Kourou, French Guiana. The second satellite “Milena” was then installed in a side-by-side arrangement and will be mated atop a Soyuz Fregat upper stage. ESA/CNES/Arianespace/Optique Vidéo du CSG photo by P. Baudon

The European Commission (EC) has opened a public consultation on a newly revised version of the Galileo Open Service Signal in Space Interface Control Document (OS SIS ICD).
 
The consultation will take place through September 22, overlapping the scheduled first launch of fully operational capability (FOC) Galileo satellites on August 21. Details of the consultation process can be found on the EC Directorate-General for Enterprise website.
 

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By Inside GNSS
July 31, 2014

GPS Directorate to Hold Public Forum for Feedback on GPS Technical Specifications

The Global Positioning Systems (GPS) Directorate will host an open public forum on August 22 for the following NAVSTAR GPS public documents: IS-GPS-200 (Navigation User Interfaces), IS-GPS-705 (User Segment L5 Interfaces), IS-GPS-800 (User Segment L1C Interface), and ICD-GPS-870 (Navstar Next Generation GPS Operational Control Segment [OCX] to User Support Community Interfaces).

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By Inside GNSS
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