Eye in the Sky: Investigating Spatial Performance Following Perspective Change

2017 ◽  
Vol 61 (1) ◽  
pp. 329-333
Author(s):  
Stephen J. Cauffman ◽  
Douglas J. Gillan
Keyword(s):  
Response Times ◽  
Unmanned Aerial Systems ◽  
Perspective Change ◽  
Spatial Performance ◽  
Virtual City ◽  
Remote Perception ◽  
Image Pairs ◽  
Aerial Systems ◽  
Future Work ◽  
Image Object

Unmanned Aerial Systems (UASs) are becoming more prevalent in civilian use, such as emergency response and public safety. As a result, UASs pose issues of remote perception for human users (Eyerman, 2013). The purpose of this experiment was to test the effects of combining aerial and ground perspectives on spatial judgments of object positions in an urban environment. Participants were shown randomly ordered image pairs of aerial and ground views of objects in a virtual city and were asked to make judgments about where a missing object was in the second image of the pair. Response times and error were collected with error being calculated using the Euclidean distance formula. The results were consistent with previous research and showed that congruent trials (aerial-aerial and ground-ground) resulted in less error and response time. It was also shown that there was a significant four-way interaction between stimulus image, response image, object density, and stimulus duration. The results of this study are intended to provide the basis for future work in understanding the underlying reasons behind spatial errors that might occur during use of UASs and lead to design implementations for interfaces to reduce these errors.

scholarly journals CReSIS airborne radars and platforms for ice and snow sounding

2019 ◽  
Vol 61 (81) ◽  
pp. 58-67 ◽  
Author(s):  
Emily Arnold ◽  
Carl Leuschen ◽  
Fernando Rodriguez-Morales ◽  
Jilu Li ◽  
John Paden ◽  
...  
Keyword(s):  
Unmanned Aerial Systems ◽  
Frequency Spectra ◽  
Radar Systems ◽  
Measurement Resolution ◽  
Vertical Takeoff And Landing ◽  
Specific Frequency ◽  
Platform Development ◽  
Aerial Systems ◽  
Future Work ◽  
Vertical Takeoff

AbstractThis paper provides an update and overview of the Center for Remote Sensing of Ice Sheets (CReSIS) radars and platforms, including representative results from these systems. CReSIS radar systems operate over a frequency range of 14–38 GHz. Each radar system's specific frequency band is driven by the required depth of signal penetration, measurement resolution, allocated frequency spectra, and antenna operating frequencies (often influenced by aircraft integration). We also highlight recent system advancements and future work, including (1) increasing system bandwidth; (2) miniaturizing radar hardware; and (3) increasing sensitivity. For platform development, we are developing smaller, easier to operate and less expensive unmanned aerial systems. Next-generation platforms will further expand accessibility to scientists with vertical takeoff and landing capabilities.

scholarly journals Monitoring Tropospheric Gases with Small Unmanned Aerial Systems (sUAS) during the Second CLOUDMAP Flight Campaign

Atmosphere ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 434 ◽  
Author(s):  
Travis J. Schuyler ◽  
Sean C. C. Bailey ◽  
Marcelo I. Guzman
Keyword(s):  
Response Times ◽  
Petroleum Industry ◽  
Fast Response ◽  
The United States ◽  
Unmanned Aerial Systems ◽  
Proof Of Concept ◽  
Atmospheric Gases ◽  
Spatiotemporal Resolution ◽  
Constant Altitude ◽  
Aerial Systems

Small unmanned aerial systems (sUAS) are a promising technology for atmospheric monitoring of trace atmospheric gases. While sUAS can be navigated to provide information with higher spatiotemporal resolution than tethered balloons, they can also bridge the gap between the regions of the atmospheric boundary layer (ABL) sampled by ground stations and manned aircraft. Additionally, sUAS can be effectively employed in the petroleum industry, e.g., to constrain leaking regions of hydrocarbons from long gasoducts. Herein, sUAS are demonstrated to be a valuable technology for studying the concentration of important trace tropospheric gases in the ABL. The successful detection and quantification of gases is performed with lightweight sensor packages of low-power consumption that possess limits of detection on the ppm scale or below with reasonably fast response times. The datasets reported include timestamps with position, temperature, relative humidity, pressure, and variable mixing ratio values of ~400 ppm CO2, ~1900 ppb CH4, and ~5.5 ppb NH3. The sensor packages were deployed aboard two different sUAS operating simultaneously during the second CLOUDMAP flight campaign in Oklahoma, held during 26–29 June 2017. A Skywalker X8 fixed wing aircraft was used to fly horizontally at a constant altitude, while vertical profiles were provided by a DJI Phantom 3 (DJI P3) quadcopter flying upward and downward at fixed latitude-longitude coordinates. The results presented have been gathered during 8 experiments consisting of 32 simultaneous flights with both sUAS, which have been authorized by the United States Federal Aviation Authority (FAA) under the current regulations (Part 107). In conclusion, this work serves as proof of concept showing the atmospheric value of information provided by the developed sensor systems aboard sUAS.

LIGHTER-THAN-AIR (LTA) UNMANNED AERIAL SYSTEM (UAS) CARRIER CONCEPT FOR SURVAILLANCE AND DISASTER MANAGEMENT

2019 ◽  
Vol 3 ◽  
pp. 1255
Author(s):  
Ahmad Salahuddin Mohd Harithuddin ◽  
Mohd Fazri Sedan ◽  
Syaril Azrad Md Ali ◽  
Shattri Mansor ◽  
Hamid Reza Jifroudi ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Disaster Management ◽  
Unmanned Aerial Systems ◽  
Unmanned Aerial System ◽  
Border Control ◽  
Aerial Vehicles ◽  
Operational Safety ◽  
In Situ Methods ◽  
Aerial Systems

Unmanned aerial systems (UAS) has many advantages in the fields of SURVAILLANCE and disaster management compared to space-borne observation, manned missions and in situ methods. The reasons include cost effectiveness, operational safety, and mission efficiency. This has in turn underlined the importance of UAS technology and highlighted a growing need in a more robust and efficient unmanned aerial vehicles to serve specific needs in SURVAILLANCE and disaster management. This paper first gives an overview on the framework for SURVAILLANCE particularly in applications of border control and disaster management and lists several phases of SURVAILLANCE and service descriptions. Based on this overview and SURVAILLANCE phases descriptions, we show the areas and services in which UAS can have significant advantage over traditional methods.

Beach and dune impacts due to Hurricane Florence in Dare County, North Carolina

Shore & Beach ◽  
2019 ◽  
pp. 44-49 ◽  
Author(s):  
Elizabeth Sciaudone ◽  
Liliana Velasquez-Montoya
Keyword(s):  
North Carolina ◽  
Prior Knowledge ◽  
Unmanned Aerial Systems ◽  
State University ◽  
National Wildlife Refuge ◽  
Sediment Samples ◽  
Wildlife Refuge ◽  
Full Report ◽  
Aerial Systems

Less than two weeks after Hurricane Florence made landfall in North Carolina (NC), a team of researchers from NC State University traveled to Dare County to investigate the storm’s effects on beaches and dunes. Using available post-storm imagery and prior knowledge of vulnerabilities in the system, the team identified several locations to visit in the towns of Kitty Hawk, Nags Head, Rodanthe, Buxton, and Hatteras, as well as a number of locations within the Pea Island National Wildlife Refuge (Figure 1). Data collected included topographic profiles, still imagery and video from unmanned aerial systems, sediment samples, and geo-located photography. This Coastal Observations piece presents some of the data and photos collected; the full report is available online (Sciaudone et al. 2019), and data collected will be made available to interested researchers upon request.

A Comparative Economic Study on the Use of Unmanned Aerial Systems versus Motorcycles to Transport Laboratory Samples in Liberia

2019 ◽  
Author(s):  
Walter Ochieng ◽  
Tun Ye ◽  
Christina M. Scheel ◽  
Aun Lor ◽  
John M. Saindon ◽  
...  
Keyword(s):  
Unmanned Aerial Systems ◽  
Economic Study ◽  
Aerial Systems
Sign in / Sign up

Export Citation Format

Share Document