Aerospace and Electronic Systems - August 2018 - 2
In This Issue - Technically
PROPOSED LANDING ON EUROPA: INSTRUMENTS, RADIATION
SHIELDING, PLANETARY PROTECTION, AND MISSION
This article proposes a suite of instruments for a lander vehicle for
studying Europa. It outlines the scientific and engineering parameters
for the instruments. It estimates the mass, volume, and power consumption for each instrument. The article then outlines the network
and power distribution for the instruments. It proposes burying the
electronics in ice to shield them from radiation. To provide planetary
protection, it proposes both a method for assembling the spacecraft in
an autoclave and trajectories for the boosters and sky crane to fly away
from Europa to destruction in Jupiter's atmosphere. Finally, the article
outlines the launch vehicle, the spacecraft, and the mission trajectory,
and estimates the power consumption, cost, and schedule for a mission
to Europa.
A CRYOGENIC 0.35 M CMOS TECHNOLOGY BSIM3.3 MODEL
FOR SPACE INSTRUMENTATION: APPLICATION TO A BANDGAP
DESIGN
Space missions require electronics providing high performances under
extreme conditions. The most restrictive ones are cryogenic, temperatures and radiations. Application Specific Integrated Circuit (ASIC)
aims at reaching high performances, low weight and low power consumption. Therefore, simulation models available from industrial
foundries are meant to work only from 230 K to 430 K. In this work,
we present a cryogenic electrical model for a 0.35 μm/3.3V CMOS
technology, based on extracted transistor BSIM3.3 parameters model
from room temperature down to the temperature of liquid nitrogen.
These models are used to design and test a full CMOS reference voltage circuit giving a 1.3V with only 20 ppm/K drift between 100 K and
150 K for space instrumentation.
USE OF A NEW ONLINE CALIBRATION PLATFORM WITH
APPLICATIONS TO INERTIAL SENSORS
A new computational platform for sensor calibration has been constructed that uses the quantity called wavelet variance (WV) in order to deliver an estimation framework called Generalized Method of
Wavelet Moments (GMWM). GMWM not only allows estimation of
considerably complex stochastic models, but allows them to be done in
a numerically stable, computationally efficient, and statistically consistent manner for any kind of signal or measurement. In this article,
we illustrate how the GMWM can be employed to study and model
the noise structure of the two IMUs by means of the online available
GUI and illustrate the basic steps needed for the stochastic calibration
of an inertial sensor for navigation. In order to facilitate the use of this
tool for practitioners interested in sensor calibration, a graphical-userinterface (GUI) called gui4gmwm has been created.
2
IEEE A&E SYSTEMS MAGAZINE
AUGUST 2018
Aerospace and Electronic Systems - August 2018
Table of Contents for the Digital Edition of Aerospace and Electronic Systems - August 2018
Contents
Aerospace and Electronic Systems - August 2018 - Cover1
Aerospace and Electronic Systems - August 2018 - Cover2
Aerospace and Electronic Systems - August 2018 - Contents
Aerospace and Electronic Systems - August 2018 - 2
Aerospace and Electronic Systems - August 2018 - 3
Aerospace and Electronic Systems - August 2018 - 4
Aerospace and Electronic Systems - August 2018 - 5
Aerospace and Electronic Systems - August 2018 - 6
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Aerospace and Electronic Systems - August 2018 - 68
Aerospace and Electronic Systems - August 2018 - Cover3
Aerospace and Electronic Systems - August 2018 - Cover4
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