TL;DR: There are several upgrades for military GPS being developed but the biggest change will come when the operators start to apply this new level of platform navigation accuracy in their tactical operations.
Abstract: Military aircrews are beginning to experience the benefits of having GPS quality navigation information available in the cockpit. Aircraft integrated in accordance with the Navy GPS integration guidance received a two-frequency military receiver with precise positioning service accuracy, a MIL-STD-1553B digital navigation data bus, electronic data transfer capability, and area navigation capability displayed on the flight instruments. There are several upgrades for military GPS being developed but the biggest change will come when the operators start to apply this new level of platform navigation accuracy in their tactical operations. A significant improvement in situational awareness and tactical effectiveness is possible when friendly military aircraft self-report their accurate position and identification.
TL;DR: The worldwide Air Traffic Control (ATC) structure is under increased strain because old equipment, in many countries, is inefficient and lacks the capacity to handle the anticipated demand over the next 20 years.
Abstract: The worldwide Air Traffic Control (ATC) structure is under increased strain because old equipment, in many countries, is inefficient and lacks the capacity to handle the anticipated demand over the next 20 years. The current growth reflects the international need to increase airspace capacity along with airspace user requests to reduce flight time and save money. Our own National Airspace System is not excluded from this challenge. In response to the growing demands, International Civil Aviation Organization (ICAO) has specified that Required Navigation Performance (RNP) is an essential element of communications navigation surveillance/air traffic management (CNS/ATM) and is encouraging early implementation in the enroute environment. Currently, many States are preparing for the introduction of RNP on air traffic services (ATS) routes in preparation for the implementation of the global CNS/ATM system.
TL;DR: In this article, the requirements of required navigation performance (RNP) for the en-route, approach and landing phases of flight were defined and validated using the NASA Low Visibility Landing and Surface Operations Programs.
Abstract: The U.S. and international aviation communities have adopted the Required Navigation Performance (RNP) process for defining aircraft performance when operating the en-route, approach and landing phases of flight. RNP consists primarily of the following key parameters - accuracy, integrity, continuity, and availability. The processes and analytical techniques employed to define en-route, approach and landing RNP have been applied in the development of RNP for the airport surface. To validate the proposed RNP requirements several methods were used. Operational and flight demonstration data were analyzed for conformance with proposed requirements, as were several aircraft flight simulation studies. The pilot failure risk component was analyzed through several hypothetical scenarios. Additional simulator studies are recommended to better quantify crew reactions to failures as well as additional simulator and field testing to validate achieved accuracy performance, This research was performed in support of the NASA Low Visibility Landing and Surface Operations Programs.
TL;DR: This paper describes how a state-of-the-art navigation instrument has been adapted to military requirements and extended with additional sensors and functionality to meet the demands on robustness and redundancy of a military user operating in rough sea conditions with high dynamics.
Abstract: Precise navigation solutions integrating GPS and low cost inertial navigation technology have been developed in the last decades to optimize accuracy in the offshore and hydrographic industry This technology is well known and established in the market Commercial solutions are available that provide precise measurements of position, velocity attitude, and heading This paper describes how a state-of-the-art navigation instrument has been adapted to military requirements and extended with additional sensors and functionality to meet the demands on robustness and redundancy of a military user operating in rough sea conditions with high dynamics The solution integrates several instruments in one robust and compact navigation package The Royal Norwegian Navy has installed the navigation system described above in their new range of combat boats
TL;DR: Examination of existing radio-navigation aids based on existing equipment such as Distance Measuring Equipment (DME), the Traffic and Collision Avoidance System (TCAS) and LORAN can be used to determine the number of the existing radionavigation aids that should be left in place to provide adequate navigation services during the transition to solemeans-GPS navigation.
Abstract: The current Federal Radio Navigation Plan presents plan that includes phasing out of existing radio-navigation
aids as part of the transition to sole-means-GPS
navigation in the United States GPS based systems are
also being envisioned as becoming the primary means of
air traffic control resulting in the retirement of older
primary and secondary surveillance radar (SSR) systems
This paper discusses the use of existing radio-navigation
aids to provide a redundant navigation system alongside
GPS/WAAS during the transition to a sole means GPS
national airspace system Specifically, the paper
examines three such systems based on existing equipment
such as Distance Measuring Equipment (DME), the
Traffic and Collision Avoidance System (TCAS) and
LORAN The predicted performance of these systems
can be used to determine the number of the existing radio-navigation
aids that should be left in place to provide adequate navigation services during the transition sole-means-
GPS navigation
TL;DR: A new navigation system structure is introduced which is capable of detecting faults in any combination of navigation sensors and a decentralised architecture is presented for the fusion of information from different asynchronous sources.
TL;DR: Principles of Navigation and the Concept of an Integrated Navigation System Newton's Laws Applied to Navigation, Inertial Navigation Systems, and Global Positioning System Uncertainty in Navigation, INS Error Propagation, Probabilities, Autocorrelation and the Method of Least Squares
Abstract: Principles of Navigation and the Concept of an Integrated Navigation System Newton's Laws Applied to Navigation (Geodesics, Basic Reference Frames, Simplified Aerospace Vehicle Equation) Inertial Navigation Systems (INS) and Global Positioning System (GPS) Uncertainty in Navigation, INS Error Propagation, Probabilities, Autocorrelation and the Method of Least Squares Kalman Filters and Their Key Role in the Integration of Aircraft Avionics Systems GPS Theory and its Application to Navigation (Including System Accuracy) GPS Application to Precision Approach and Landing, Attitude Control and Air Traffic Control Flight Testing of Navigation Systems Computer Exercises.