A: System Categories Archives - Page 74 of 199 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

A: System Categories

Military GPS Receiver Advances Could Help Trim Satellite Costs

Military GPS Receiver Advances Could Help Trim Satellite Costs

Advanced military receivers using the sort of modern multi-channel, multi-constellation capabilities already available commercially, could enable the Air Force to focus its anti-jam efforts on the ground, simplifying future GPS satellites and lowering their cost. Moreover, experts told Inside GNSS, the cutting-edge receivers could be deployed years before the anti-jam capability planned for the new GPS III satellites would be fully available.

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By Dee Ann Divis
Listening for RF Noise

Listening for RF Noise

GNSS signals are vulnerable to interference due to being extremely weak when received on Earth’s surface. Therefore, even a low-power interference signal can easily disrupt the operation of commercial GNSS receivers within a range of several kilometers.

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By Inside GNSS
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Russia Delays Launch of Next GLONASS Satellite
May 17, 2016

Russia Delays Launch of Next GLONASS Satellite

The Russian news agency TASS has reported that the launch of GLONASS-M satellite No. 53 from the Plesetsk cosmodrome has been rescheduled from May 21 to May 29, according to Reshetnev Information Satellite Systems CEO Nikolay Testoyedov.

The launch postponement has nothing to do with the satellite’s condition, Testoyedov said.

Russia’s State Space Corporation Roscosmos announced earlier that a Soyuz-2.1b carrier rocket was expected to bring a new Glonass-M satellite into orbit.

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By Inside GNSS
Senate Kills GPS OCX Funding Due to Cost Overruns — Now $5.3 Billion and Rising

Senate Kills GPS OCX Funding Due to Cost Overruns — Now $5.3 Billion and Rising

The Senate Armed Services Committee zeroed out the Pentagon’s $393 funding request for the new GPS ground control system during its May 11 markup, asserting that the program’s cost overruns — with a total cost that may reach $5.3 billion, up from an original $1.5 billion — had breached the Nunn-McCurdy Act.

Under the act, such a breach could result in termination of the Next Generation Operational Control System or OCX unless the Secretary of Defense goes through an in-depth review of the program and personally certifies its critical importance.

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By Inside GNSS
Mayflower Receives Small GPS User Equipment Contract
May 14, 2016

Mayflower Receives Small GPS User Equipment Contract

Mayflower NavAssure 125

Mayflower Communications Company, Inc., has been awarded a Phase III SGUE (small GPS user equipment) contract with the United States Air Force Research Laboratory (AFRL), sponsored by the Space and Missile Systems Center/GPS Directorate (SMC/GPSD), to develop a small SWaP (size, weight, and power) security certifiable Common GPS Module (CGM) for the Air Force’s Modernized GPS User Equipment (MGUE) Program.

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By Inside GNSS
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National Space-based Positioning, Navigation, and Timing (PNT) Advisory Board, 17th Meeting
May 13, 2016

National Space-based Positioning, Navigation, and Timing (PNT) Advisory Board, 17th Meeting

Gaylord National Resort and Convention Center

The National Space-based Positioning, Navigation, and Timing (PNT) Advisory Board is comprised of experts from outside government that are tasked with developing recommendations for the PNT EXCOM to consider in making GPS services more effective and accessible to users in all domains and sectors. Attendance is open to the public.

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By Inside GNSS
SMC Announces Feasibility Assessment Contracts for Next Round of GPS III Satellite Competition
May 6, 2016

SMC Announces Feasibility Assessment Contracts for Next Round of GPS III Satellite Competition

The USAF Space and Missile Systems Center (SMC) announced today (May 5, 2016) the award of three contracts to support companies in preparing for the competition to build additional GPS Block III space vehicles (SVs).

The SMC’s GPS Directorate at Los Angeles Air Force Base, California, will award one GPS III Phase 1 Production Readiness Feasibility Assessment contract to each of the following companies: Boeing Network and Space Systems, Lockheed Martin Space Systems Company, and Northrop Grumman Aerospace Systems.

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By Inside GNSS
FCC Opens GPS-Adjacent Ligado Proposal for Comment
May 1, 2016

FCC Opens GPS-Adjacent Ligado Proposal for Comment

The Federal Communications Commission (FCC) is officially asking for feedback on a proposal by Ligado Networks to repurpose frequencies near the GPS band for a terrestrial broadband network. The long-delayed public notice and comment period is a step in the approval process, although there is no assurance that Ligado’s plan for a new wireless service — which may still cause interference to GPS receivers — will get the go-ahead.

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By Dee Ann Divis
Two More Galileo Satellites Set Healthy
April 29, 2016

Two More Galileo Satellites Set Healthy

Europe’s 11th and 12th Galileo satellites being prepared for launch in the clean room at Europe’s Spaceport in Kourou, French Guiana. Photo: ESA/CNES/Arianespace/Optique Vidéo du CSG/Hrouffie De Francisci

Europe’s latest navigation satellites, launched last December, have been officially commissioned into the Galileo constellation, and are now broadcasting working navigation signals.

Galileos 11 and 12 were launched together on a Soyuz rocket from Europe’s Spaceport in French Guiana on 17 December.

The satellites’ navigation payloads were submitted to a gamut of tests, centered on the European Space Agency’s Redu center in Belgium, which possesses a 20 meter-diameter antenna to analyze the satellites’ signals in great detail.

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By Inside GNSS
India Completes IRNSS Constellation

India Completes IRNSS Constellation

PSLV-C33 with final IRNSS satellite lifts off. ISRO photo

Yesterday (April 28, 2016) the Indian Space Research Organization (ISRO) successfully launched the seventh and final spacecraft for the Indian Regional Navigation Satellite System (IRNSS). The satellite, IRNSS-1G, was placed into orbit by a Polar Satellite Launch Vehicle (PSLV-C33).

According to ISRO, the prime minister of India, Narendra Modi, watched the launch and “heartily thanked and congratulated” all the scientists and ISRO team for completing the IRNSS constellation, which he dedicated to the nation as “NavIC” (Navigation Indian Constellation).

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By Inside GNSS
SpaceX Snares GPS III Launch Services Contract
April 27, 2016

SpaceX Snares GPS III Launch Services Contract

The Air Force announced today (April 27, 2016) the award to Space Technologies Corporation (SpaceX) of an $82.7-million contract for GPS III Launch Services.

The Air Force characterized the contract as “the first competitively sourced National Security Space (NSS) launch services contract in more than a decade.” However, a decision last November by the United Launch Alliance (ULA), a joint venture of Boeing and Lockheed, not to compete for this GPS III launch effectively left SpaceX as the only bidder.

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By Inside GNSS
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