Automated conflict-avoidance for unmanned aerial systems is quickly becoming feasible due to near-future advances in communication guarantees. The NextGen Implementation Plan introduced by the FAA lays out requirements for air traffic in the US airspace to be implemented by 2020. This includes mandates for the introduction of the automatic dependent surveillance broadcast (ADS-B) on each system...

• The Mode S data link is a high-capacity air-ground digital communications system that can deliver information to the cockpit in a form that will significantly improve pilot situational awareness and aircraft utility. The Federal Aviation Administration is currently deploying Mode S surveillance sensors with data-link capability at 143 sites across the United States. Two Mode S data-link appli...

SYNTHESIS OF APERIODIC ANTENNA ARRAY FOR ISOFLUX RADIATION IN SATELLITE APPLICATIONS BASED ON GENETIC ALGORITHMS Alberto Reyna, Marco A Panduro and Carlos del Rio-Bocio 1. Unidad Académica Multidisciplinaria Reynosa-Rodhe, Universidad Autónoma de Tamaulipas (UAT) Carretera Reynosa-San Fernando, Reynosa, Tamaulipas, 88779 México Phone: (52) 899.921.3300, Fax: (52) 899.921.3301, Email: mamendoza@...

With the rapid growth of general aircraft and lack of ground facilities, air traffic control and aeronautical communication system face huge pressure, especially in low-altitude airspace. Aeronautical ad hoc networks (AANETs) are large scale multi-hop wireless network of aircraft, which could provide direct air-to-air communication between aircraft without ground infrastructures. However, the f...

In one concept proposed under the NASA Small Aircraft Transportation System program, pilots would self-separate by observing other aircraft near an airport using ADS-B and a moving-map display. An Airport Management Module (AMM) would sequence this traffic. The question was, however, whether the concept was practical and whether an automated Cockpit Associate (CA) could relieve pilot workload a...

One of the core objectives of supply-side drug law enforcement is to reduce drug use by raising the cost of buying drugs. The effectiveness of this strategy depends on how illicit drug users respond to the rise in costs. The aim of the current study was to estimate how methamphetamine users would respond to changes in the prices of methamphetamine and heroin, using hypothetical drug purchasing ...

Many researchers have hypothesized relationships between personality disorders and gender role (i.e., masculinity and femininity). However, research has not addressed if people who are masculine or feminine more often meet the criteria for personality disorders. The present study examined whether college students (N = 665, 60% women) higher in masculinity or femininity more often exhibited feat...

In theory, unisexual taxa have an advantage over ecologically similar bisexual species because unisexuals produce twice as many daughters and, thus, should quickly outcompete coexisting bisexuals in any given population. For sperm-dependent unisexual (gynogenetic) species, stable coexistence with their bisexual sperm donors can be postulated if male mate choice puts unisexual females at a disad...

Within the NASA Aviation Systems Capacity Program, the Terminal Area Productivity (TAP) Project is addressing airport capacity enhancements during instrument meteorological conditions (IMC). The Airborne Information for Lateral Spacing (AILS) research within TAP has focused on an airborne centered approach for independent instrument approaches to closely spaced parallel runways using Differenti...

The Automatic Dependent Surveillance Broadcast protocol is one of the latest compulsory advances in air surveillance. While it supports tracking ever-growing number aircraft air, also introduces cybersecurity issues that must be mitigated e.g., false data injection attacks where an attacker emits fake surveillance information. recent sources and tools available to obtain flight records allow re...