The Mars exploration plans of ESA

Baglioni, P.; Fisackerly, R.; Gardini, B.; Gianfiglio, G.; Pradier, A.; Santovincenzo, A.; Vago, Jorge L.; Winnendael, M. van

doi:10.1109/mra.2006.1638019

Cited by 21 publications

(10 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Phase A studies followed in 2004. The ExoMars mission (Baglioni et al , 2006 ; Vago et al , 2006 ; Vago and Kminek, 2008 ) was approved at the 2005 ESA Ministerial Conference. However, a last-minute request to accommodate an instrumented station on the landing platform—to recover science from the discontinued Netlander mission (Dehant et al , 2004 )—resulted in a more complicated design, requiring a larger launcher, which could not be achieved with the available budget.…”

Section: Introductionmentioning

confidence: 99%

Habitability on Early Mars and the Search for Biosignatures with the ExoMars Rover

Vago¹,

Westall²,

Coates³

et al. 2017

Astrobiology

410

253

View full text Add to dashboard Cite

The second ExoMars mission will be launched in 2020 to target an ancient location interpreted to have strong potential for past habitability and for preserving physical and chemical biosignatures (as well as abiotic/prebiotic organics). The mission will deliver a lander with instruments for atmospheric and geophysical investigations and a rover tasked with searching for signs of extinct life. The ExoMars rover will be equipped with a drill to collect material from outcrops and at depth down to 2 m. This subsurface sampling capability will provide the best chance yet to gain access to chemical biosignatures. Using the powerful Pasteur payload instruments, the ExoMars science team will conduct a holistic search for traces of life and seek corroborating geological context information. Key Words: Biosignatures—ExoMars—Landing sites—Mars rover—Search for life. Astrobiology 17, 471–510.

show abstract

Section: Introductionmentioning

confidence: 99%

Habitability on Early Mars and the Search for Biosignatures with the ExoMars Rover

Vago¹,

Westall²,

Coates³

et al. 2017

Astrobiology

410

253

View full text Add to dashboard Cite

show abstract

“…The effect of the radiation of the antenna on the ground can be seen from the antenna reflection coefficient Figure 6(b), which shows |S 11 | projection on the ground surface, where the distance between the radiating source and the ground surface has been increased from 0 to 100 cm. The sand layer volume is 300 3 200 3 200 cm 3 To determine the sufficient distance between both antennas by applying Snell law as shown in Figure 6(a) so the distances d is variable according to incident angle h i and the minimum distance is 1 m and maximum distance is 4 m.…”

Section: Ground Penetrating Radar Systemmentioning

confidence: 99%

“…CP antennas can be generated by exciting two orthogonal modes with equal amplitude but in phase quadrature and it can be achieved by two categories for the single port antenna. The first approach is an asymmetrical feed structure, such as asymmetrical Y-shaped-coupled feed structure [2] and asymmetric-CPW-fed structure [3]. Second, circular polarization can be generated with geometrical perturbations, such as slots, slits, spur lines, truncated corners, cuts, and tuning stubs [4].…”

Section: Introductionmentioning

confidence: 99%

“…Hence, a great demand is needed to direct tens or hundreds of research activities to develop a novel, miniaturized, low cost, possible compromise solution between depth and resolution, suitable for all kinds of mines, scanning in real time, easy to interpret, and decrease the false alarm. One of the most serious hardware components for the performance of ground penetrating radar (GPR) is the antenna system . The GPR is a promising technology to detect and identify aquifer water or nonmetallic mines.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compact printed log‐periodic dipole antenna for water detection by using ground penetrating radar

Elsheakh

Abdallah

2014

Micro & Optical Tech Letters

View full text Add to dashboard Cite

Compact printed fractal log-periodic dipole antenna (FLPDA) is proposed for water detection using ground penetrating radar (GPR). First fractal structure is introduced in an antenna design and evolves the traditional Euclidean log-periodic dipole array (LPDA). A fabricated proof-of-concept prototype of the proposed antenna is printed on a FR4 substrate with a relative permittivity of 4.7 on both substrate thickness 1.6 and 9.5 mm with occupied area of 85 3 110 and 60 3 70 cm 2 , respectively. The fabricated antenna has approximately 75% size reduction as compared to traditional LPDA. The 210dB impedance bandwidth extends from 45 MHz to more than 500 MHz. Both numerical and experimental results show that the FLPDA antenna has stable directional radiation patterns and apparently miniaturized effect, which are suitable for various ultrawideband applications. Main parameters and characteristics of the proposed antenna are discussed using both electromagnetic simulation and measurement. The effect of sandy soil, water layer, and the distance between sand and proposed antennas are also studied. Figure 11 Radiation pattern for thin substrate (solid line Eh, and dash line EA) at 50 MHz (a) XZ-plane, (b) XY-plane and at 500 MHz, (c) XZ-plane, and (d) XY-plane, respectively

show abstract

“…UMS has attracted more attention in 1990s, and they have been widely used in aerospace and robotics, e.g. [5,6]. Control of UMS is now one of the most active research fields in control community.…”

Section: Introductionmentioning

confidence: 99%

A survey of underactuated mechanical systems

Liu

2013

IET Control Theory & Applications

249

142

View full text Add to dashboard Cite

An underactuated mechanical system (UMS) is the system that has fewer independent control actuators than degrees of freedom to be controlled. Control of UMS is considered as one of the most active fields of research due to its diverse engineering applications.This survey reviews UMS from its history to the state-of-the-art research on modelling, classification, control methods, and to some extent, provides some unique insights for bottleneck issues of control and future research directions.

show abstract

The Mars exploration plans of ESA

Cited by 21 publications

References 3 publications

Habitability on Early Mars and the Search for Biosignatures with the ExoMars Rover

Habitability on Early Mars and the Search for Biosignatures with the ExoMars Rover

Compact printed log‐periodic dipole antenna for water detection by using ground penetrating radar

A survey of underactuated mechanical systems

Contact Info

Product

Resources

About