Assuring continuous high-performance Positioning, Navigation and Timing (PNT) in GPS/GNSS-challenged and –denied environments poses a critical problem for mission designers and project engineers. How do you calculate PNT if you cannot receive sufficient signals, if signals are blocked or degraded or if you are beyond signal range? How do you know, in theaters of war and other combatant situations, if the signals you are receiving are true or counterfeit? What can you do if the PNT signals are blocked, intentionally or otherwise?
The Symmetricom QUANTUM Chip Scale Atomic Clock (SA.45s CSAC) delivers the accuracy and stability of an atomic clock to portable applications for the first time.Atomic clocks have enabled a world where ultra-precise timekeeping is now mandatory for communications, navigation, signal processing and many other applications critical to a modern functioning society. However, as smaller, lighter and more energy efficient — in other words, more portable — versions of these systems have emerged, atomic clocks themselves have not followed the same trend lines. Why not?
In order to greatly expand recording bandwidth, you can deploy multiple tightly synchronized recorders in the field. Averna studied the example of two RP-5300 recorders (2×50 MHz channels each) that were synchronously inter-connected to form a virtual recorder with total bandwidth of 200 MHz.
Download this white paper to learn more about how you can expand GNSS spectrum coverage by capturing RF signals from all GNSS orbiting satellites, then storing and playing the signals back in the lab to accelerate receiver testing.
As the most heavily taxed and regulated companies in the U.S., telecom, cable, utility and oil and gas businesses face a complex set of challenges when assigning tax jurisdictions. Forty-five states and more than 11,000 jurisdictions collect sales and use taxes. Municipalities are increasingly relying on special tax districts to raise revenue. And these industries must comply with convoluted, overlapping jurisdictions and filing requirements.
“Location-Based Advertising: The Key to Unlocking the Most Value in the Mobile Advertising and Location-Based Services Markets”
Written by: Lisa Peterson Rob Groot
Edited by: Matteo Luccio
The authors provide insight on the states of the LBS and Mobile Marketing/Advertising markets in the United States. They explore the evolution from subscription-based LBS towards free LBS and what is needed to make an ad-funded business model work. They discuss the benefits of bringing together the world of LBS and that of mobile marketing/advertising to create LBA. They further explain what the stakeholders in the market — consumers, advertisers, and the ―enabling companies (providers of LBS content, applications, and platforms) — stand to gain from LBA. Finally, they discuss what combination of technologies, business models, and strategies, need to align to unleash LBA’s market potential and why LBA is the path to creating more value in both the LBS and mobile advertising segments.
When the need arises for a system to support H764G/LN100G integration and test or per- form dynamic testing of JDAM equipped F-16 aircraft — CAST has the solution. CAST Navigation has developed the CAST-3000 to provide the tool to support all your integration and test requirements. With a proven track record of decreasing navigation systems integration costs, improving H764G/LN100G integration success, supporting flight test planning, reproducing flight results, providing JDAM integration and test support, the CAST-3000 is the solution.
CAST Navigation recently demonstrated the capability to perform dynamic ground testing of GPS/INS guided munitions including the Joint Direct Attack Munition (JDAM) and Extended Range Guided Munition (ERGM). The CAST system provides coordinated GPS and inertial data to the weapon’s navigation systems simultaneously with the launch platform’s navigation system. This permits testing of the entire weapon system interface. The initialization data and the transfer alignment data are communicated from the launch platform to the weapon and the weapon’s navigation parameters are collected while both the weapon and the aircraft are executing the same simulated motion.
Position One Consulting: The Global Market for GNSS Augmentation, Infrastructure and Services 2009-2013
By Robert Lorimer and Eric Gakstatter
Precise positioning GNSS equipment capable of accuracies of less than 10cm are used in a steadily growing number of applications. Suppliers of precision GNSS goods and services are a mix of established GPS companies such as Trimble Navigation (USA), new entrants such as Septentrio B.V. (EU) and large multi-nationals such as John Deere. The global value of precision GNSS products and services is approximately US$3 Billion in 2008 and predicted to grow to a value of between US$6-8 Billion by 2012, a CAGR of 19-23%. This report includes details on the projected US$ 6-8 Billion value chain; starting with precision GNSS infrastructure, continuing through the market for GNSS receivers, finished GNSS goods and concluding with GNSS augmentation and distribution services.
Effective enterprise security can be a challenge for the IT architects and security specialists who design, deploy, and support mission-critical solutions. While recent industry advancements, especially in the areas of Web services standards and services-oriented architectures, are helping architects to more effectively meet their security objectives, these new capabilities are also contributing to an already complex set of protocols, tools, and architectures. Download our whitepaper.
NovAtel’s SPAN technology tightly couples OEM precision GNSS receivers with robust Inertial Measurement Units (IMUs) to provide reliable, continuously available, position, velocity and attitude — even through short periods of time when satellite signals are blocked or unavailable.
Symmetricom’s multi-clock turnkey system provides a real-time local UTC time scale and can also apply the most accurate GNSS and SatCom techniques for measuring offsets between geographically dispersed clocks.
As the international standard time scale, Universal Coordinated Time (UTC) is the composite of clocks throughout the world. The time of each clock is reported to the International Bureau of Weights and Measures (BIPM) using either GPS common view (CV) or Two-Way Satellite Time and Frequency Transfer. National laboratories also compute a local time scale steered to agree with UTC designated as UTC (local). Local UTC time-scale systems have state-of-the-art frequency stability, phase noise performance, and system availability. To be incorporated in UTC, their internal clocks cannot themselves be steered by UTC and the CV data must be calculated and reported to the BIPM in accordance with its published method and format.
The Symmetricom Time-Scale System meets these requirements using Symmetricom manufactured commercial timing products. Compared to other solutions, Symmetricom offers faster deployment, lower ownership costs, higher product quality, spare parts that are easier and less expensive to get, and a single point of responsibility for all system support.