Business Outlook — UWB Location Tech on a Roll Apr 1, 2008 By: Stephen Colwell

Ultra-wideband location applications envisioned or already created support emergency services, asset tracking, and manufacturing inventory management.

Let's Go Downtown! Let's Go Indoors! Pedestrian Navigation in Obstructed Environments Nov 1, 2007 By: Franz Weimann, Günther Abwerzger, Bernhard Hofmann-Wellenhof

Firefighters, rescue teams, and other special workers need hybrid navigation to perform safely and efficiently in GNSS signal-denied areas.

Robots helping with the housework may seem like science fiction, but Waseda University researchers are exploring ways that humanoid robots could live in harmony with humans. To enable robots to navigate household living spaces, the researchers are developing a seamless indoor/outdoor positioning solution using GPS technology with pseudolites.

Tracking First Responders Integrated Nav with Software-Defined Radio Nov 1, 2006

A networked radionavigation approach that augments GPS signals with time-of-arrival observations using a software-defined radio can overcome attenuation, and often complete blockage, of GPS inside buildings or in urban canyons. The SDR can operate both as a GPS receiver and also as a 900 MHz transceiver operating within the ISM band. Applications for this technology include firefighters and other first responders, and military operations in urban terrain.

Optimizing Indoor GPS Performance Receiver Frequency Standards Nov 1, 2003 By: Larry D. Vittorini, Brent Robinson

GPS was never intended for indoor environments, and indeed, the relatively weak satellite signals do not readily lend themselves to use in such environments. The Federal Communications Commission's E911 mandate has spurred significant effort in the GPS community to apply its combined expertise to solve this dilemma.

Centimeter-Accuracy Indoor Navigation Using GPS-Like Pseudolites Nov 1, 2001 By: Changdon Kee, Doohee Yun, Haeyoung Jun, Bradford Parkinson, Sam Pullen, Tom Lagenstein

Pseudolites enable GPS navigation in indoor environment.

Indoor GPS: The No-Chip Challenge This article continues our series on the "one-chip challenge," the effort to reduce the physical parameters of GPS receiver technology to accommodate its integration into an ever-wider variety of platforms, products, and systems - particularly portable devices. Written by engineers at a GPS company focusing on cellular telephone markets, the article describes a receiver architecture that employs a large number of signal-processing correlators to increase the sensitivity of user equipment to the point that.. Sep 1, 2001 By: Frank van Diggelen, Charles Abraham

Location-enabling cell phones will increase demand for GPS by over one hundredfold.