Avoiding Collisions at Any (Low) Cost: ADS-B Like Position Broadcast for UAVs

Real-Time Attitude and Position Estimation for Small UAVs Using Low-Cost Sensors

Small unmanned air vehicles (UAVs) and micro air vehicles (MAVs) have payload and power constraints that prohibit heavy sensors and powerful processors. This paper presents real-time attitude and position estimation solutions that use small, inexpensive sensors and low-power microprocessors. In connection with an Extended Kalman Filter attitude estimation scheme, a novel method for dealing with...

Screening at any cost?

Can we increase screening participation, and if so, at what cost? These were the questions I asked myself while reading the article “Effect of provider and patient reminders, deployment of nurse practitioners, and financial incentives on cervical and breast cancer screening rates,” which appears on page e282 of this issue.1 Kaczorowski et al present the results of a large concerted effort that ...

Avoiding Collisions Between Aircraft: State of the Art and Requirements for UAVs operating in Civilian Airspace

In this paper we consider the ability of Unmanned Aerial Vehicles (UAVs) to operate safely in civilian airspace. This ability is increasingly important as UAVs proliferate and their usage spreads to non-military applications. According to regulatory requirements by the FAA and others this capability must demonstrate a level of performance that meets or exceeds that of an equivalent human pilot ...

Wto Accession at Any Cost

The World Trade Organization’s (WTO) goal of liberalizing multilateral trade does not exist in a vacuum; that is to say, liberalizing trade is not an end in itself. The preamble to the Agreement Establishing the World Trade Organization (“Marrakesh Agreement”), explicitly states that “[t]he Parties to this Agreement, recognizing that their relations in the field of trade and economic [endeavor]...

ADS Position Statements