Abstract:
Die Erfindung betrifft ein Verfahren zum Betreiben einer Markierungsvorrichtung (1) für ein Objekt (2), wobei die Markierungsvorrichtung (1) mindestens einen Empfänger (11), eine Auswerteeinheit (12), eine Funkschnittstelle (14) eine Provisionierschnittstelle (16) und eine Provisioniereinheit (15) umfasst, wobei der mindestens eine Empfänger (11) Signale (32a-32d) eines satellitengestützten Navigationssystems (3) erfasst, die Auswerteeinheit (12) die erfassten Signale zu einem Datensatz (13) weiterverarbeitet und aus diesem die Position (la) der Markierungsvorrichtung (1) ermittelt und die Funkschnittstelle (14) den Datensatz (13) an ein Lokalisierungssystem (4) übermittelt, wobei die Provisioniereinheit (15) mindestens ein Firmware-Update (51) für die Markierungsvorrichtung (1), und/oder mindestens einen Bahndatensatz (52) für Satelliten (31a-31d) des Navigationssystems (3), über die Provisionierschnittstelle (16) einliest und in einem Speicher (17) der Markierungsvorrichtung (1) ablegt.
Abstract:
A GNSS cooperative receiver system that can be utilized when one or more GNSS receivers is in a compromised position where it cannot receive direct signals from a sufficient number of GNSS satellites. This may in the interior of an office building or multi-dwelling unit, which may be in the vicinity of other tall buildings. The receivers determine their relative positions from one of various ranging techniques, and then with this relative position information, pseudoranges, and correlation values from the various GNSS receivers, the best GNSS solution can be determined for the group of cooperative receivers. This could include two or more receivers in a group. There also related techniques for one receiver to be a designated, remote anchor for other GNSS receivers that need such assistance.
Abstract:
Significant, cost-effective improvement is introduced for Position, Navigation, and Timing (PNT) on a global basis, particularly enhancing the performance of Global Navigation Satellite Systems (GNSS), an example of which is the Global Positioning System (GPS). The solution significantly improves performance metrics including the accuracy, integrity, time to acquire, interference rejection, and spoofing protection. A constellation of small satellites employing a low-cost architecture combined with improved signal processing yields an affordable enabler for spectrum-efficient transportation mobility. As air traffic management modernization transitions to a greater dependence on satellite positioning, the solution provides aviation users new protections from both intentional and unintentional interference to navigation and surveillance. And in response to an era in which intelligent transportation is under development for automobiles, reliable where-in-lane positioning enables new applications in connected and autonomous vehicles. New military capability increases PNT availability.
Abstract:
복수의 궤적에 대한 세그먼트들을 결정하는 단계로서, 복수의 궤적 각각은 통신 디바이스의 무선 주파수 데이터를 포함하는 것을 특징으로 하는, 결정하는 단계; 세그먼트들의 무선 주파수 특성을 결정하는 단계; 무선 주파수 특성에 따라 세그먼트들의 클러스터들을 형성하는 단계; 및 클러스터들을 이용하여 지도의 경로들을 생성하는 단계; 를 포함하는, 방법을 제공한다.
Abstract:
Novel methods and systems for the accurate and efficient processing of real-time and latent global navigation satellite systems (GNSS) data are described. Such methods and systems can perform orbit determination of GNSS satellites, orbit determination of satellites carrying GNSS receivers, positioning of GNSS receivers, and environmental monitoring with GNSS data.
Abstract:
Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or support one or more operations or techniques for a relatively faster time-to-first-fix, such as for use in or with a mobile communication device. Briefly, in accordance with at least one implementation, a method may include transmitting a first message to a mobile device, the first message comprising abbreviated positioning assistance data; receiving a second message from the mobile device, the second message comprising an indication of a coarse location of the mobile device; and transmitting a third message to the mobile device, the third message comprising a detailed tiled radio heat map obtained based, at least in part, on the received indication of the coarse location of the mobile device.
Abstract:
An optimum measurement subset with a specified number n of elements is generated from a set of N > n weighted input global navigation satellite system (GNSS) measurements. A group of trial measurement subsets is generated by removing a different individual weighted input GNSS measurement from the set. A value of accuracy criterion for a target parameter is calculated for each trial measurement subset, and the trial measurement subset with the minimum value of accuracy criterion is selected. A new group of trial measurement subsets is generated by removing a different individual weighted GNSS measurement from the previously selected trial measurement subset. A value of accuracy criterion is calculated for each new trial measurement subset, and a new trial measurement subset with the new minimum value of accuracy criterion is selected. The process is repeated until the selected trial measurement subset has the specified number n of elements.