GPS

Reading between the Lines: GPS & 2010 National Space Policy
July 1, 2010

Reading between the Lines: GPS & 2010 National Space Policy

A new National Space Policy announced this week (June 28, 2010) by the White House appears to do more than elevate GPS in the pantheon of U.S. space programs.

The five paragraphs on space-based positioning, navigation, and timing (PNT) systems prominently enshrine the U.S. GNSS system in the 18-page document: GPS is the only program called out by name in the policy’s section on “Foundational Activities and Capabilities.”

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By Inside GNSS
GPS IIF Signals: Loud and Clear
June 30, 2010

GPS IIF Signals: Loud and Clear

Stanford GNSS Monitor Station Antenna

Initial analyses by researchers in the United States and Germany of the transmissions from the first GPS Block IIF satellite indicate generally strong and healthy signals, although the some aspects of the new L5 signal are drawing close attention.

The researchers’ efforts will be reported in two articles in the July/August issue of Inside GNSS magazine.

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By Inside GNSS
Obama’s National Space Policy Authorizes Use of Foreign GNSS Services to Strengthen GPS
June 28, 2010

Obama’s National Space Policy Authorizes Use of Foreign GNSS Services to Strengthen GPS

A new U.S. National Space Policy announced today (June 28, 2010) by the White House says that foreign GNSS services may be used “to augment and strengthen the resiliency of GPS.”

In a document that underlines the Obama administration’s intention to rely more on international cooperation in space-related activities and “energize competitive domestic industries to participate in global markets,” the new policy reaffirms recent efforts “to engage with foreign GNSS providers to encourage compatibility and interoperability, promote transparency in civil service provision, and enable market access for U.S. industry.”

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By Inside GNSS
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Lockheed Martin Team Completes Requirements Review for GPS IIIB Program
June 22, 2010

Lockheed Martin Team Completes Requirements Review for GPS IIIB Program

Lockheed Martin has announced successful completion of a key requirements review for the GPS IIIB satellite series under the U.S. Air Force’s next-generation GPS III Space Segment program.

Lockheed Martin Space Systems, Newtown, Pennsylvania, is working under a $3 billion development and production contract from the U.S. Air Force to produce up to 12 GPS IIIA satellites, with first launch projected for 2014. The contract includes a Capability Insertion Program (CIP) designed to mature technologies and perform rigorous systems engineering for the future IIIB and IIIC increments planned as follow-on procurements.

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By Inside GNSS
On the Air

On the Air

With the launch of the Delta IV rocket on May 27 from Cape Canaveral Air Force Station the first satellite (space vehicle number 62 or SVN62) of the latest GPS generation Block IIF (F, for “follow-on”) was carried into earth orbit — a major step with roots in the past.

Eight years ago in August 2002 the United States decided in coordination with the International Telecommunication Union (ITU-R) to transmit a new civil signal on a third frequency known as L5.

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By Inside GNSS
First Look at GPS L5 Signal
June 18, 2010

First Look at GPS L5 Signal

GPS L5 Signal Spectrum. German Aerospace Center image

The German Aerospace Center (DLR) has tracked and recorded the first operational L5 GPS signal as transmitted by the first GPS Block IIF satellite launched on May 27. The accompanying spectral image of the signal was received at about 15:10 UTC (GMT) today (June 17, 2010).

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By Inside GNSS
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ITT Passes GPS III Nav Component CDR
June 15, 2010

ITT Passes GPS III Nav Component CDR

ITT Corporation has announced that it passed a key milestone last month with successful completion of the critical design review (CDR) for the Mission Data Unit (MDU) the company is developing as part of the navigation payload for the U.S. Air Force’s GPS III program.

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By Inside GNSS
DLR, Stanford Track First GPS IIF Signals; Tests Begin on L5
June 7, 2010

DLR, Stanford Track First GPS IIF Signals; Tests Begin on L5

GPS IIF SV1 Spectral Flux Density on L1. DLR figure

[Updated June 10] The U.S. Air Force announced today (June 10) that it has begun
testing the new operational L5 signal transmitted by the first GPS IIF satellite (space vehicle 1 or SV1 — designated SVN-62 in the overall GPS system), which was launched May 27.

On June 7, 2010, a team of experts from the German Aerospace Center (DLR) and Stanford University in California reported results of their tracking of the first navigation signals from the satellite, the pseudorandom noise code 25 (PRN25) on L1 and L2 — C/A and P(Y).

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By Inside GNSS
Cockpit_airport_graphic.jpg

GNSS to Star in FAA’s NextGen Air Traffic System

Next Generation Air Transportation System (NextGen) Concept

The Federal Aviation Administration (FAA) accelerated its move toward a Next Generation Air Transportation System (NextGen) with contracts awarded to Boeing, General Dynamics and ITT on May 26 and performance requirements for aircraft tracking equipment announced May 28.

NextGen, to be completed by 2025, will rely heavily upon GNSS to increase capacity, efficiency, and safety in the National Air Space (NAS) while reducing adverse environmental effects.

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By Inside GNSS
Deselecting Unavailability
May 31, 2010

Deselecting Unavailability

Only a decade ago, but a world away: 2000.

The last year of the old century that everyone thought was the first of the new.

When flying was still a delight, rather than a worrisome bother.

When the expected — a global Y2K bug–bitten IT meltdown — didn’t happen, and the much-anticipated but still-unexpected did: the United States turned off GPS selective availability.

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By Inside GNSS
Death of a Russian Engineer

Death of a Russian Engineer

Stas Sila-Novitsky (left) and Javad Ashjaee. Photo by Marc Cheves, American Surveyor

Very sad news from Moscow. Earlier this month, Stanislav Sila-Novitsky — Stas to his friends and colleagues — died unexpectedly after a short illness.

A member of the executive staff of Javad GNSS, Sila-Novitsky had a long career in space electronics engineering. During the Soviet era, he was the department head with the Russian Space Agency’s Institute of Space Device Engineering, which was responsible for the development of the overall GLONASS system electronics.

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By Inside GNSS
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