Difference between revisions of "Time"
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[http://www.google.com/search?q=clock+time+keeping+artificial+intelligence+ai ...Google search] | [http://www.google.com/search?q=clock+time+keeping+artificial+intelligence+ai ...Google search] | ||
+ | * [[Cybersecurity: National Institute of Standards and Technology (NIST) & U.S. Department of Homeland Security (DHS)]] | ||
+ | ** [http://www.nist.gov/pml/time-and-frequency-division Time and Frequency Division, Physical Measurement Laboratory, National Institute of Standards and Technology (NIST)] | ||
+ | ** [http://www.npl.co.uk/ntc National Timing Centre] ... Assured Time and Frequency for the UK | ||
* [http://en.wikipedia.org/wiki/Time Time] ...[http://en.wikipedia.org/wiki/Coordinated_Universal_Time Coordinated Universal Time UTC] ... [http://en.wikipedia.org/wiki/Clock Clock] ...[http://en.wikipedia.org/wiki/History_of_timekeeping_devices Timekeeping | Wikipedia] | * [http://en.wikipedia.org/wiki/Time Time] ...[http://en.wikipedia.org/wiki/Coordinated_Universal_Time Coordinated Universal Time UTC] ... [http://en.wikipedia.org/wiki/Clock Clock] ...[http://en.wikipedia.org/wiki/History_of_timekeeping_devices Timekeeping | Wikipedia] | ||
* [http://interestingengineering.com/the-very-long-and-fascinating-history-of-clocks The Very Long and Fascinating History of Clocks | Christopher McFadden - Interesting Engineering] | * [http://interestingengineering.com/the-very-long-and-fascinating-history-of-clocks The Very Long and Fascinating History of Clocks | Christopher McFadden - Interesting Engineering] | ||
+ | ** [http://www.youtube.com/watch?v=t-_VPRCtiUg The Surprising Secret of Synchronization | Veritasium] | ||
* [http://www.timeanddate.com/time/leapseconds.html What Is a Leap Second? | Konstantin Bikos and Anne Buckle - timeanddate.com] | * [http://www.timeanddate.com/time/leapseconds.html What Is a Leap Second? | Konstantin Bikos and Anne Buckle - timeanddate.com] | ||
* [http://www.amazon.com/s?k=atomic+clock&ref=nb_sb_noss_1 Atomic clocks] ...[http://www.amazon.com/s?k=tide+clock&ref=nb_sb_noss_1 Tide Clock | ][[Amazon]] | * [http://www.amazon.com/s?k=atomic+clock&ref=nb_sb_noss_1 Atomic clocks] ...[http://www.amazon.com/s?k=tide+clock&ref=nb_sb_noss_1 Tide Clock | ][[Amazon]] | ||
+ | ** [http://www.sciencenews.org/article/atomic-clock-general-relativity-time-warp-millimeter-physics An atomic clock measured how general relativity warps time across a millimeter | Emily Conover - ScienceNews] | ||
+ | * [http://en.wikipedia.org/wiki/Clock_synchronization Clock synchronization] | ||
* [http://primo.ai/index.php?title=Cybersecurity Cybersecurity] | * [http://primo.ai/index.php?title=Cybersecurity Cybersecurity] | ||
** [http://www.crownsterling.io/ Crown Sterling] ... changing the face of digital security with its non-integer-based algorithms that leverage time, AI and irrational numbers. | ** [http://www.crownsterling.io/ Crown Sterling] ... changing the face of digital security with its non-integer-based algorithms that leverage time, AI and irrational numbers. | ||
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The Earth's rotation is so accurate it varies only in milliseconds ...do you feel the Earth rotation slowing down? | The Earth's rotation is so accurate it varies only in milliseconds ...do you feel the Earth rotation slowing down? | ||
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+ | <i>[http://iohk.io/en/blog/posts/2021/10/27/ouroboros-chronos-provides-the-first-high-resilience-cryptographic-time-source-based-on-blockchain/ Time is an indispensable concept within computer programs and applications. Without this concept, we would not be able to access any transport layer security (TLS) based websites, exchange data, or utilize various cryptographic algorithms. | Olga Hryniuk - Input Output] </i> | ||
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* [http://ieeexplore.ieee.org/document/5608862 Artificial intelligence in GPS navigation systems | Jeffrey L. Duffany] | * [http://ieeexplore.ieee.org/document/5608862 Artificial intelligence in GPS navigation systems | Jeffrey L. Duffany] | ||
* RoadTagger: [http://newatlas.com/technology/gps-system-ai-upgrade/ GPS system upgrade utilizes AI to make sure you're in the right lane | David Nield - New Atlas] ...[http://www.inceptivemind.com/artificial-intelligence-roadtagger-digital-maps-improve-gps-navigation/11525/ Artificial intelligence to update digital maps and improve GPS navigation | Amit Malewar - InceptiveMind] | * RoadTagger: [http://newatlas.com/technology/gps-system-ai-upgrade/ GPS system upgrade utilizes AI to make sure you're in the right lane | David Nield - New Atlas] ...[http://www.inceptivemind.com/artificial-intelligence-roadtagger-digital-maps-improve-gps-navigation/11525/ Artificial intelligence to update digital maps and improve GPS navigation | Amit Malewar - InceptiveMind] | ||
− | * [http://www.gps.gov/ GPS.gov] | + | * [http://www.gps.gov/ GPS.gov] ...[http://www.gps.gov/applications/timing/ Timing] |
* [http://insidegnss.com/ Inside GNSS] ...Global Navigation Satellite Systems | * [http://insidegnss.com/ Inside GNSS] ...Global Navigation Satellite Systems | ||
* [http://www.space.com/19794-navstar.html Navstar | Space.com] ...is a network of U.S. satellites that provide GPS services | * [http://www.space.com/19794-navstar.html Navstar | Space.com] ...is a network of U.S. satellites that provide GPS services | ||
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== <span id="Jamming and Spoofing"></span>Jamming and Spoofing == | == <span id="Jamming and Spoofing"></span>Jamming and Spoofing == | ||
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* [[Cybersecurity]] | * [[Cybersecurity]] | ||
− | * [http://www.youtube.com/watch?v=NCOcliI-nkM Tactical Radio (TR) A-PNT Overview | COL Daniel F. Kuntz, USA - TRADOC Capabilities Manager Tactical Radios (TCM TR) - U.S. Army Cyber Center of Excellence & Fort Gordon] | + | * [http://www.esd.whs.mil/Portals/54/Documents/DD/issuances/dodi/465008p.pdf DOD INSTRUCTION 4650.08 Positioning, Navigation and Timing Warfare] |
+ | ** [http://www.gao.gov/products/gao-21-320sp DOD is Developing Positioning, Navigation, and Timing Technologies to Complement GPS | GAO] DOD is pursuing approaches, such as creating common standards and interfaces, to aid in integrating and fielding new PNT technologies faster and at lower cost. DOD is developing its PNT modeling and simulation capabilities to evaluate the performance of new PNT technologies. | ||
+ | ** [http://www.youtube.com/watch?v=NCOcliI-nkM Tactical Radio (TR) A-PNT Overview | COL Daniel F. Kuntz, USA - TRADOC Capabilities Manager Tactical Radios (TCM TR) - U.S. Army Cyber Center of Excellence & Fort Gordon] | ||
+ | * [http://apps.dtic.mil/sti/pdfs/ADA494614.pdf National Positioning, Navigation, and Timing Architecture | Lt Col Patrick Huested, USAF National Security Space Office and Paul D. Popejoy The Aerospace Corporation] | ||
+ | * [http://rntfnd.org/wp-content/uploads/Resilient-National-Timing-Architecture-16-Oct-2020.pdf A Resilient National Timing Architecture: Securing Today's, Enabling Tomorrow's | Dr. Marc Weiss, Dr. Patrick Diamond, and Mr. Dana A. Goward] | ||
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* [http://www.curtisswrightds.com/technologies/open-architecture/assured-position-navigation-timing.html A-PNT: Assured Position, Navigation and Timing | Curtiss-Wright] | * [http://www.curtisswrightds.com/technologies/open-architecture/assured-position-navigation-timing.html A-PNT: Assured Position, Navigation and Timing | Curtiss-Wright] | ||
* [http://www.express.co.uk/news/science/1358337/china-vs-us-beijing-wipe-out-gps-space-conflict-moon-mars-satellite-taiwan-joe-biden-spt China tipped to 'wipe out' GPS with 'dire consequences' after conflict catalyst exposed | Callum Hoare - The Daily Express] ...[[Government Services#China|China]] could bring the world to its knees by "wiping out" GPS, a key system used by the US military and its NATO allies, an expert on space policy has told Express.co.uk [http://www.marinelink.com/news/gps-unreliability-483109 GPS Unreliability | Dennis L. Bryant - MarineLink] | * [http://www.express.co.uk/news/science/1358337/china-vs-us-beijing-wipe-out-gps-space-conflict-moon-mars-satellite-taiwan-joe-biden-spt China tipped to 'wipe out' GPS with 'dire consequences' after conflict catalyst exposed | Callum Hoare - The Daily Express] ...[[Government Services#China|China]] could bring the world to its knees by "wiping out" GPS, a key system used by the US military and its NATO allies, an expert on space policy has told Express.co.uk [http://www.marinelink.com/news/gps-unreliability-483109 GPS Unreliability | Dennis L. Bryant - MarineLink] | ||
Like the GPS units in many automobiles today, a simple receiver and some processing power is all that is needed for accurate navigation. But, what if the GPS satellites suddenly became unavailable due to malfunction, enemy action or simple interference, such as driving into a tunnel? Unavailability of GPS would be inconvenient for drivers on the road, but could be disastrous for military missions. [http://www.darpa.mil/news-events/2013-04-10 Extreme Miniaturization: Seven Devices, One Chip to Navigate without GPS | ] [[Defense#US Defense Advanced Research Projects Agency (DARPA)|US Defense Advanced Research Projects Agency (DARPA)]] | Like the GPS units in many automobiles today, a simple receiver and some processing power is all that is needed for accurate navigation. But, what if the GPS satellites suddenly became unavailable due to malfunction, enemy action or simple interference, such as driving into a tunnel? Unavailability of GPS would be inconvenient for drivers on the road, but could be disastrous for military missions. [http://www.darpa.mil/news-events/2013-04-10 Extreme Miniaturization: Seven Devices, One Chip to Navigate without GPS | ] [[Defense#US Defense Advanced Research Projects Agency (DARPA)|US Defense Advanced Research Projects Agency (DARPA)]] | ||
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+ | <img src="http://rntfnd.org/wp-content/uploads/National-PNT-Architecture.jpg" width="1000"> | ||
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+ | [http://cms7.dot.gov/pnt/national-positioning-navigation-and-timing-pnt-architecture National Positioning, Navigation, and Timing (PNT) Architecture | U.S. Department of Transportation] | ||
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Revision as of 07:39, 13 May 2022
YouTube search... ...Google search
- Cybersecurity: National Institute of Standards and Technology (NIST) & U.S. Department of Homeland Security (DHS)
- Time and Frequency Division, Physical Measurement Laboratory, National Institute of Standards and Technology (NIST)
- National Timing Centre ... Assured Time and Frequency for the UK
- Time ...Coordinated Universal Time UTC ... Clock ...Timekeeping | Wikipedia
- The Very Long and Fascinating History of Clocks | Christopher McFadden - Interesting Engineering
- What Is a Leap Second? | Konstantin Bikos and Anne Buckle - timeanddate.com
- Atomic clocks ...Tide Clock | Amazon
- Clock synchronization
- Cybersecurity
- Crown Sterling ... changing the face of digital security with its non-integer-based algorithms that leverage time, AI and irrational numbers.
- Quantum cryptography ... the infosec industry looks to quantum cryptography and quantum key distribution (QKD)
- Time Series
- Models
- Transformer
- Generative Pre-trained Transformer (GPT)
- Attention Mechanism/Transformer Model
- Transformer-XL
- Sequence to Sequence (Seq2Seq)
- End-to-End Speech
- Neural Turing Machine
- Recurrent Neural Network (RNN)
- (Tree) Recursive Neural (Tensor) Network (RNTN)
- Temporal Difference (TD) Learning
- Time Series Forecasting - Statistical
- Time Series Forecasting - Deep Learning
- Spatial-Temporal Dynamic Network (STDN)
- Transformer
Whenever we have developed better clocks, we’ve learned something new about the world.
- Alexander Smith New Time Dilation Phenomenon Revealed: Timekeeping Theory Combines Quantum Clocks and Einstein’s Relativity - Dartmouth College
The Earth's rotation is so accurate it varies only in milliseconds ...do you feel the Earth rotation slowing down?
DARPA Making Progress on Miniaturized Atomic Clocks for Future PNT Applications | US Defense Advanced Research Projects Agency (DARPA)
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Contents
YouTube search... ...Google search
- Case Studies
- Autonomous Drones
- Deepmind teaches AI to follow navigational directions like humans | Tristan Greene
- History of Navigation | Wikipedia
- Department of Homeland Security (DHS) Science and Technology (S&T) Positioning, Navigation, and Timing (PNT) Program
- Navigation Aids | Department of Transportation, Federal Aviation Administration
- VN-300 | Vectornav ...miniature, high-performance Dual Antenna Global Navigation Satellite Systems (GNSS)-Aided Inertial Navigation System (INS) that combines micro-electromechanical systems (MEMS) inertial sensors, two high-sensitivity GNSS receivers, and advanced Kalman filtering algorithms to provide optimal estimates of position, velocity, and orientation.
Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.[1] The field of navigation includes four general categories: land navigation, marine navigation, aeronautic navigation, and space navigation. Navigation | Wikipedia
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Global Positioning System (GPS)
YouTube search... ...Google search
- Man-made (artificial) Satellites
- GPS has been copied by Russia's GLONASS, Europe’s Galileo, China's BeiDou, India’s IRNSS, and Japan’s QZSS
- Artificial intelligence in GPS navigation systems | Jeffrey L. Duffany
- RoadTagger: GPS system upgrade utilizes AI to make sure you're in the right lane | David Nield - New Atlas ...Artificial intelligence to update digital maps and improve GPS navigation | Amit Malewar - InceptiveMind
- GPS.gov ...Timing
- Inside GNSS ...Global Navigation Satellite Systems
- Navstar | Space.com ...is a network of U.S. satellites that provide GPS services
- SpaceX launches third-generation GPS navigation satellite | CBS News ...GPS-3 satellite — the fourth in a series of more powerful third-generation navigation stations built by Lockheed Martin — was expected to be deployed about a 90 minutes after liftoff. Assuming tests and checkout go well, it will join a globe-spanning constellation of 31 GPS satellites.
- Air Force asks three U.S. contractors to develop miniature ASIC technology for next-gen GPS receivers | John Keller - Military & Aerospace Electronics ...small low-power-consumption GPS enabling technologies to include a next-generation ASIC for secure GPS land navigation.
- China Launches Beidou, Its Own Version of GPS | Andrew Jones - IEEE Spectrum ...China places the final Beidou navigation system satellite into orbit
- Big News For ISRO! Indian Navigation System (IRNSS) Gets Approval By IMP For Global Operations | Smriti Chaudhary - The EurAsuan Times
GPS receivers that use the L5 band can pinpoint to within 30 centimeters or 11.8 inches. The GPS concept is based on time and the known position of GPS specialized satellites. The satellites carry very stable atomic clocks that are synchronized with one another and with the ground clocks. Any drift from time maintained on the ground is corrected daily. In the same manner, the satellite locations are known with great precision. GPS receivers have clocks as well, but they are less stable and less precise. Each GPS satellite continuously transmits a radio signal containing the current time and data about its position. Since the speed of radio waves is constant and independent of the satellite speed, the time delay between when the satellite transmits a signal and the receiver receives it is proportional to the distance from the satellite to the receiver. A GPS receiver monitors multiple satellites and solves equations to determine the precise position of the receiver and its deviation from true time. At a minimum, four satellites must be in view of the receiver for it to compute four unknown quantities (three position coordinates and clock deviation from satellite time). Global Positioning System | Wikipedia
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Deep-Space Positioning System (DPS)
YouTube search... ...Google search
- NASA is Making An AI-Based GPS For Space | Kristin Houser
- Frontier Development Lab (FDL) ...Artificial Intelligence Research for Space Science, Exploration & All Humankind
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Jamming and Spoofing
YouTube search... ...Google search
- The Resilient Navigation and Timing Foundation
- Department of Homeland Security (DHS) Science and Technology (S&T) Resilient Positioning, Navigation, and Timing (PNT) Conformance Framework
- The Space Force: A Conversation With United States Secretary Of The Air Force Barbara Barrett | Steve Forbes - Forbes ... We are vulnerable. For example, the U.S. and the global economy are totally dependent on satellites, most especially the GPS, which is operated by the Space Force.
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