Browsing by Author "Hobbs, Stephen"

GeoSAR Feasibility Study: Summary of the Group Design Project. MSc in Astronautics and Space Engineering 2012/13

Hobbs, Stephen (Cranfield University, 2013-06-28)

Students of the MSc course in Astronautics and Space Engineering 2012–13 at Cranfield University performed a feasibility study of a geosynchronous radar mission for their group project. This report summarises the students’ ...

GeoSAR: Summary of the Group Design Project MSc in Astronautics and Space Engineering 2005/06 Cranfield University

Hobbs, Stephen (2006-08-14)

Students of the MSc course in Astronautics and Space Engineering 2005/06 at Cranfield University took GeoSAR as one of their group projects. This report summarises their findings. GeoSAR is an initial feasibility study for ...

Geostare system performance assessment methodology

Hobbs, Stephen; Convenevole, Carlo; Guarnieri, A. M.; Wadge, G. (IEEE, 2016-11-03)

Geosynchronous synthetic aperture radar (GEO SAR) is attracting growing interest due to its potential for flexible and frequent imaging over continental areas. Studies are underway to evaluate mission design options and ...

HySim: a tool for space-to-space hyperspectral resolved imagery

Felicatti, Leonard; Hobbs, Stephen; Leslie, Cameron; Rowling, Samuel; Dhesi, Mekhi; Harris, Toby; Brydon, George; Chermak, Lounis; Soori, Umair; Allworth, James; Balson, David (International Astronautical Federation (IAF), 2023-10-06)

This paper introduces HySim, a novel tool addressing the need for hyperspectral space-to-space imaging simulations, vital for in-orbit spacecraft inspection missions. This tool fills the gap by enabling the generation of ...

Improving 2D resolution in geosynchronous SAR via spatial spectrum synthesis: method and verification

Chen, Xinyan; Chen, Zhiyang; Li, Yuanhao; Hu, Cheng; Dong, Xichao; Hobbs, Stephen (IEEE, 2024-02-01)

Geosynchronous synthetic aperture radar (GEO SAR) has the advantages of a short revisit time and a large beam footprint. Enhancing spatial resolution has become a hotspot in spaceborne SAR research areas. The existing ...

Insect ventral radar cross-section polarisation dependence measurements for radar entomology

Hobbs, Stephen; Aldhous, Anthony C. (The Institution of Electrical Engineers, 2006-12-31)

Radar entomology has developed such that routine long-term monitoring of insect flight through the atmospheric boundary layer is now practical. Typical entomological radars use X-band (9.4 GHz) marine transceivers with a ...

Laplace plane and low inclination geosynchronous radar mission design

Hobbs, Stephen; Sanchez, Joan-Pau (Springer, 2017-05-17)

This study is inspired by the Laplace orbit plane property of requiring minimal station-keeping and therefore its potential use for long-term geosynchronous synthetic aperture radar (GEOSAR) imaging. A set of GEOSAR user ...

Laplace plane GeoSAR feasibility study: summary of the group design project MSc in astronautics and space engineering 2014-15, Cranfield University

Hobbs, Stephen (Cranfield University, 2015-10-07)

Students of the MSc course in Astronautics and Space Engineering 2014-15 at Cranfield University performed a feasibility study of a geosynchronous radar mission for their group project. This report summarises the students' ...

Linear mixture modelling solution methods for satellite remote sensing

Hobbs, Stephen (2003-11-04)

This report documents the algorithms used in the program MIXMOD to analyse mixed pixel data (assuming linear mixing). The report describes the mathematical algorithms rather than acting as a user’s manual for MIXMOD. The ...

Lunar South Pole Mission (LSPM) :

Hobbs, Stephen (2003-01-01)

This report is a summary of the group design project of the MSc in Astronautics and Space Engineering at Cranfield University for the year 1996/97. The project was a feasibility study of a European unmanned mission to the ...

Mars Xpress. Summary of the Group Design Project, MSc in Astronautics and Space Engineering, 1997/98, Cranfield University

Hobbs, Stephen; Turner, Ray (2003-09-19)

This is a summary of the Group Design Project of the MSc course in Astronautics and Space Engineering in the College of Aeronautics at Cranfield University for the academic year 1997/98. Executive summaries from all the ...

Meteorological OSSEs for new zenith total delay observations: impact assessment for the hydroterra geosynchronous satellite on the October 2019 Genoa event

Meroni, Agostino N.; Boni, Giorgio; Pulvirenti, Luca; Monti-Guarnieri, Andrea; Haagmans, Roger; Hobbs, Stephen; Parodi, Antonio (MDPI, 2020-11-18)

Along the Mediterranean coastlines, intense and localized rainfall events are responsible for numerous casualties and several million euros of damage every year. Numerical forecasts of such events are rarely skillful, ...

Method for estimating clutter limited geosynchronous synthetic aperture radar performance

Convenevole, Carlo; Hobbs, Stephen (IEEE, 2019-09-27)

This paper reviews the geosynchronous synthetic aperture radar (GeoSAR) literature and highlights a gap in land clutter theory.The gap concerns clutter models with weather dependence for incidence angles between 20 and 70 ...

MUSTANG 0 A low-cost technology demonstration nanosatellite. Summary of the Group Design Project MSc in Astronautics and Space Engineering 2004/05 Cranfield University

Hobbs, Stephen (2005-09-05)

Students of the MSc course in Astronautics and Space Engineering 2004/05 at Cranfield University took Mustang 0 as their group project. This report summarises their findings. Mustang is a partnership of several groups ...

MUSTANG 2001 Summary of the Group Design Project MSc in Astronautics and Space Engineering 2001/02 Cranfield University

Hobbs, Stephen; Bowling, Tom; Roberts, Peter C. E. (2003-09-18)

MUSTANG (Multi-University Space Technology Advanced Nanosatellite Group) was the group design project for students of the MSc in Astronautics and Space Engineering for the Academic Year 2001/02 at Cranfield University. ...

MUSTANG: A Technology demonstrator for formation flying and distributed systems technologies in space

Roberts, Peter C. E.; Bowling, Tom; Hobbs, Stephen (2005-06-27)

Future astronomical, surveillance and communications concepts are expected to depend heavily upon distributed systems – many satellites flying in formation to form synthesized detector arrays many times the size of each ...

Optimal orbital configurations of spaceborne optical sensors constellations for space surveillance

D'Anniballe, Antonio; Felicetti, Leonard; Hobbs, Stephen (International Astronautical Federation (IAF), 2023-10-06)

With the increasing number of satellites, there is a progressively higher demand for accurate surveillance and collision risk analysis systems. Most of the space situational awareness domain depends today on ground-based ...

ORWELL Demonstrator, Summary of the Group Design Project, MSc in Astronautics and Space Engineering, 1998/99, Cranfield University

Hobbs, Stephen; Turner, Ray (2003-09-19)

ORWELL Demonstrator, the group design project for the MSc in Astronautics and Space Engineering 1998/99, is a demonstrator for an Earth observation (EO) system whose objective is to provide a commercial service complementing ...

Physics-based clutter model for geosynchronous synthetic aperture radar

Convenevole, Carlo; Hobbs, Stephen (IEEE, 2020-06-02)

In this paper the land clutter literature is briefly discussed and a need for a new class of clutter models for the Geosynchronous Synthetic Aperture Radar System Performance Assessment is shown. A new physics-based clutter ...

PRIMA: Precursor Rendezvous for Impact Mitigation of Asteroids. Summary of the Group Design Project, MSc in Astronautics and Space Engineering 2006/07

Hobbs, Stephen (2007-01-01)

Students of the MSc course in Astronautics and Space Engineering 2006/07 at Cranfeld University took the Precursor Rendezvous for Impact Mitigation of Asteroids (PRIMA) mission as one of their group projects. This report ...

Browsing by Author "Hobbs, Stephen"

Browsing by Author "Hobbs, Stephen"

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