Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design - Global Navigation Satellite Systems Engineering, Policy, and Design
December 6, 2021

Fast and Furious: The Keys to High-Dynamic Positioning

Rapidly changing motion means that every aspect of positioning must be carefully re-examined and re-evaluated to avoid costly and dangerous positioning errors. The frequent changes in heading, acceleration and deceleration inherent in rockets, missiles, jet planes, race cars and other platforms — up to 100 times per second! —  dictate a very high rate of data inputs from both inertial and GNSS sensors to capture the complex trajectory.

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By Inside GNSS
December 2, 2021

BeiDou Conducts Laser Communication Experiment, Steps Ahead of U.S. — Could Improve SatNav Accuracy

In a race with the U.S. to develop a laser communications network in space, China’s BeiDou GNSS has conducted an inter-satellite and satellite-ground station experiment using using lasers rather than the usual radio signals. The technology could potentially transmit data a million times faster than by radio signal to almost any location. Some experts say it could increase satnav accuracy by a factor of 6 to 40

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By Inside GNSS
November 30, 2021

Energy-Efficiency Considerations For GNSS Signal Acquisition

Future miniaturized sensors, to be used for example in bee-sized drones, mini-satellites, or wearable devices, are likely to include GNSS chipsets supporting accurate outdoor localization and also offering reduced computational costs and power consumption compared to traditional GNSS receivers. The survey various energy-efficient methods for GNSS acquisition and present a discontinuous-reception acquisition algorithm, analyzed with both simulated and measurement-based data.

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By Inside GNSS
November 30, 2021

Russia Explodes Own Satellite with Ground-Based Missile; Spokesperson Threatens GPS

Russia conducted an unannounced direct-ascent anti-satellite (DA-ASAT) missile test on November 15, targeting and exploding its own defunct satellite Tselina-D. After the test, Russian television executive and spokesperson Dmitry Konstantinovich Kiselyov, head of the official Russian government-owned international news agency Rossiya Segodnya, reportedly said on live tv that this demonstrated that Russia could and would if necessary target U.S. GPS satellites, thus “blinding” its military forces.

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By Inside GNSS
November 30, 2021

High-Precision A-PNT Card Aligned to Army CMOSS and SOSA Technical Standard

Spectranetix, Inc. has released its SX-124, ruggedized 3U OpenVPX high-performance position, navigation and timing (PNT) solution. With an ability to provide timing and positioning information in a GPS-denied environment through sensor fusion, the SX‑124 switch is a highly integrated next-generation cyber / electronic warfare (EW) / Signals intelligence (SIGINT)  / Communications / Battle Management System (BMS) device

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By Inside GNSS
November 29, 2021

ENTER LEO on the GNSS Stage: Navigation with Starlink Satellites

We are witnessing a space renaissance. Tens of thousands of broadband low Earth orbit (LEO) satellites are expected to be launched by the end of this decade. These planned megaconstellations of LEO satellites along with existing constellations will shower the Earth with a plethora of signals of opportunity, diverse in frequency and direction. These signals could be exploited for navigation in the inevitable event that GNSS signals become unavailable (e.g., in deep urban canyons, under dense foliage, during unintentional interference, and intentional jamming) or untrustworthy (e.g., undermalicious spoofing attacks).

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By Inside GNSS
November 24, 2021

Q: What is a factor graph?

A factor graph represents a global function of many variables as a product of local functions with smaller subsets of variables. This is not a method but a framework for modelling any system using its locality structure, that is, each variable is only dependent on a few other local variables and is independent of the others.

By Inside GNSS
November 22, 2021

Evaluating LEO Constellations for Global Satellite Navigation Service

Low Earth Orbit (LEO) satellites are being launched regularly into space to create satellite constellations for a variety of purposes: communication, surveillance, providing Internet service and more. Global satellite navigation service is provided by satellites in higher orbits, mi-Earth orbit (MEO) roughly 25,000–27,00 kilometers above the Earth. Could satellites in LEO be used to provide global satellite navigation?

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By Inside GNSS
November 19, 2021

Inertial in the Field: Webinar Now Available On Demand

High standards for technology in the lab and in the factory are all very fine, but what matters most is how it works in industrial application. We take a close-up look at inertial measurement and inertial navigation in such real-world cases as
• oil and gas pipeline inspection,
• stabilization of optical camera platforms and
• autonomous cargo transport.

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By Inside GNSS
November 19, 2021

EGNOS SBAS Host Acquired by Telecom Company

Viasat Inc., a global communications company, will acquire Inmarsat, a provider of global mobile satellite communications services, in a transaction valued at $7.3 billion. Two of the four European Geostationary Navigation Overlay Service (EGNOS) broadcasting payloads, part of Europe’s GNSS, ride aboard Inmarsat satellites,

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By Inside GNSS
MORE NEWS
December 2, 2021

BeiDou Conducts Laser Communication Experiment, Steps Ahead of U.S. — Could Improve SatNav Accuracy

In a race with the U.S. to develop a laser communications network in space, China’s BeiDou GNSS has conducted an inter-satellite and satellite-ground station experiment using using lasers rather than the usual radio signals. The technology could potentially transmit data a million times faster than by radio signal to almost any location. Some experts say it could increase satnav accuracy by a factor of 6 to 40

Read More >

By Inside GNSS
November 30, 2021

High-Precision A-PNT Card Aligned to Army CMOSS and SOSA Technical Standard

Spectranetix, Inc. has released its SX-124, ruggedized 3U OpenVPX high-performance position, navigation and timing (PNT) solution. With an ability to provide timing and positioning information in a GPS-denied environment through sensor fusion, the SX‑124 switch is a highly integrated next-generation cyber / electronic warfare (EW) / Signals intelligence (SIGINT)  / Communications / Battle Management System (BMS) device

Read More >

By Inside GNSS
November 13, 2021

Embedded Timing Solution for Third-Party Hardware

ADVA introduced its OSA 5400 SyncModule  embedded timing solution, enabling technology suppliers to  integrate precise synchronization into their hardware. The M.2 form factor module offers equipment vendors a way to simply and cost-effectively add crucial timing capabilities with key functionality into their switches, routers, open compute servers and other IT devices.

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By Inside GNSS
October 1, 2021

New GNSS Receiver Evaluation Software Released

u-blox announced a new GNSS evaluation software, u-center 2, running on Microsoft Windows and offering anyone working with tenth-generation u-blox GNSS technology a highly intuitive interface to configure GNSS products, evaluate their performance, improve the quality of their software,

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By Inside GNSS
MORE NEWS
October 14, 2021

GNSS Expert Mark Psiaki Receives ION Kepler Award

The Institute of Navigation’s (ION) Satellite Division presented Dr. Mark Psiaki with its Johannes Kepler Award during the Institute of Navigation (ION) GNSS+ 2021 Conference. In addition to many other achievements, Psiaki co-authored the Inside GNSS cover story, “TRANSIT on Steroids: Doppler-Based GNSS Meets Large LEO Constellations”

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By Inside GNSS
MORE NEWS
November 30, 2021

High-Precision A-PNT Card Aligned to Army CMOSS and SOSA Technical Standard

Spectranetix, Inc. has released its SX-124, ruggedized 3U OpenVPX high-performance position, navigation and timing (PNT) solution. With an ability to provide timing and positioning information in a GPS-denied environment through sensor fusion, the SX‑124 switch is a highly integrated next-generation cyber / electronic warfare (EW) / Signals intelligence (SIGINT)  / Communications / Battle Management System (BMS) device

Read More >

By Inside GNSS
October 13, 2021

GNSS, Inertial to Keep Scooters Off Sidewalks

A maker of electric scooters has developed a GNSS- and inertial-based technology to keep its own products off of city sidewalks. Bird, a provider of environmentally friendly electric transportation, announced a smart sidewalk protection technology developed in partnership with u-blox.

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By Inside GNSS
MORE NEWS

INDUSTRY VIEW

More Industry News
December 2, 2021

BeiDou Conducts Laser Communication Experiment, Steps Ahead of U.S. — Could Improve SatNav Accuracy

Read More >
November 30, 2021

High-Precision A-PNT Card Aligned to Army CMOSS and SOSA Technical Standard

Read More >
November 13, 2021

Embedded Timing Solution for Third-Party Hardware

Read More >

GNSS TIMELINE

More Timelines
November 19, 2021

Inertial in the Field: Webinar Now Available On Demand

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September 1, 2021

Mission-Critical GNSS Training

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August 27, 2021

Joint Navigation Conference Brings 800+ to Exhibit Hall, Technical Sessions

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COLUMNS & EDITORIALS

November 30, 2021

Energy-Efficiency Considerations For GNSS Signal Acquisition

Future miniaturized sensors, to be used for example in bee-sized drones, mini-satellites, or wearable devices, are likely to include GNSS chipsets supporting accurate outdoor localization and also offering reduced computational costs and power consumption compared to traditional GNSS receivers. The survey various energy-efficient methods for GNSS acquisition and present a discontinuous-reception acquisition algorithm, analyzed with both simulated and measurement-based data.

Read More >

By Inside GNSS
November 29, 2021

ENTER LEO on the GNSS Stage: Navigation with Starlink Satellites

We are witnessing a space renaissance. Tens of thousands of broadband low Earth orbit (LEO) satellites are expected to be launched by the end of this decade. These planned megaconstellations of LEO satellites along with existing constellations will shower the Earth with a plethora of signals of opportunity, diverse in frequency and direction. These signals could be exploited for navigation in the inevitable event that GNSS signals become unavailable (e.g., in deep urban canyons, under dense foliage, during unintentional interference, and intentional jamming) or untrustworthy (e.g., undermalicious spoofing attacks).

Read More >

By Inside GNSS
September 21, 2021

Smartphone-based GNSS Positioning – Today and Tomorrow

This article reviews some of the recent results analyzing the feasibility of carrier-phase based positioning with smartphone data and highlights limitations largely arising due to the poor antenna quality. It shows how they might be overcome by antenna calibration or coupling to the phone’s inertial sensors. The goal is to perform a successful RTK positioning with the smartphone-quality data.

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By Inside GNSS
MORE COLUMNS & EDITORIALS