News Release on GPS (Global Positioning System): September-2018

A GPS For Inside Your Body

Medical processes like imaging typically need cutting somebody open or creating them swallow vast tubes with cameras on them. however what if may get constant results with strategies that area unit more cost-effective, invasive and time-consuming?

Researchers from MIT’s engineering science and computer science Laboratory (CSAIL) LED by academician Dina Katabi area unit functioning on precisely that with ReMix, a system that they describe as an associate degree “in-body GPS.” The remix will pinpoint the placement of ingestible implants within the body victimization low-power wireless signals. In animal tests the team incontestible that they’ll track implants with centimeter-level accuracy, and same that at some point future} similar implants may well be wont to deliver medicine to specific regions in the body. [1]

Real-time locating system using GPS time difference of arrival with digital off-air access units and remote units

A time period locating system (RTLS) for localization mistreatment satellite navigation signals in a very Distributed Antenna System includes Off-Air Access Units (OAAUs), every being operable to receive a private satellite navigation signal from a satellite and to route signals optically to a digital access unit (DAU). Remote digital remote units (DRUs) are situated at Remote locations and are operable to receive signals the DAUs. [2]

Implementation of Acquisition Algorithm for Multi-system Software-based BD/GPS Receiver

The development of the worldwide satellite navigation system receiver has enraptured the trend of multi-system integration. it’s vital} significant to implement a quick and economical acquisition formula of a multi-system computer code receiver. The multi-system signal acquisition formula supported FFT is planned by exploitation the collected satellite signal information and simulated on the MATLAB platform. The formula will at the same time method the BD/GPS intermediate frequency signal and win the signal capture of 2 systems of BD/GPS. the method of base-band signal acquisition of BD/GPS computer code receiver is verified by simulation and also the acquisition results in ar given. [3]

Simplifying gps data for map building and distance calculation

The following server receives GPS knowledge from a location following device situated during a vehicle. The GPS knowledge describes a path that’s representative of a pathway of the vehicle wont to complete a visit from a beginning location to a destination location. The following server identifies screeching GPS knowledge enclosed within the received GPS knowledge and revises some of the paths cherish the screeching GPS knowledge. [4]

GPS Cycle Slip Detection and Correction at Measurement Level

Carrier part measurements are far more precise than pseudo range measurements and may be accustomed reach terribly correct positioning solutions. However, carrier part measurements need a resolution of number ambiguities before precise positioning is often achieved. The GPS receiver will keep track of the range a number of cycles as long because the receiver maintains lock to the satellite signal. However, in reality, the GPS signal may be interrupted fugitive by some distressing factors resulting in a separation of associate range|number} number of cycles within the measured carrier part. This interruption within the enumeration of cycles within the carrier part measurements is thought as a cycle slip. once a cycle slip happens, the Doppler counter would restart inflicting a jump within the fast accumulated part by associate range|number} number of cycles. [5]

Reference

[1] A GPS For Inside Your Body

August 20, 2018 (web link)

[2] Real-time locating system using GPS time difference of arrival with digital off-air access units and remote units

Meerkerk D, Stapleton SP, inventors; Dali Systems Co Ltd, assignee. Real-time locating system using GPS time difference of arrival with digital off-air access units and remote units. The United States patent application US 15/819,279. 2018 Aug 23. (web link)

[3] Implementation of Acquisition Algorithm for Multi-system Software-based BD/GPS Receiver

Wang JP, Han X, Gao M. Implementation of Acquisition Algorithm for Multi-system Software-based BD/GPS Receiver. In2018 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) 2018 Jul 21 (pp. 1-4). IEEE. (web link)

[4] Simplifying gps data for map building and distance calculation

Cui S, Nguyen TD, Sumers TR, Yu M, Zhang X, inventors; Uber Technologies Inc, assignee. Simplifying gps data for map building and distance calculation. The United States patent application US 15/912,224. 2018 Aug 23. (web link)

[5] GPS Cycle Slip Detection and Correction at Measurement Level

Malek Karaim1*, Tashfeen B. Karamat1, Aboelmagd Noureldin2, and Ahmed El-Shafie3

1Electrical and Computer Engineering Department, Queens University, 19 Union Street, Kingston Ontario, K7L 3N6, Canada.

2Department of Electrical and Computer Engineering, Royal Military College of Canada, PO Box 17000, Station Forces Kingston, Ontario Canada K7K 7B4, Canada.

3Department of Civil and Structural Engineering, University Kebangsaan Malaysia, 43600 Bangi Selangor, Malaysia. (web link)

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