E-Mail Alert

Add your e-mail address to receive forthcoming issues of this journal:

Journal Browser

Journal Browser

Special Issue "Aerospace Sensor Systems"

Quicklinks

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: closed (30 September 2008)

Special Issue Editor

Guest Editor
Prof. Dr. Claude Nicollier

EPFL, Swiss Space Center, PPH341 - Station 13, CH-1015 Lausanne, Switzerland
Website | E-Mail
Phone: +41 79 223 9636
Fax: +41 21 693 6940
Interests: spaceflight; astronaut; European space technology

Special Issue Information

Dear Colleagues,

This special issue will focus on the broad development of Aerospace Sensor Systems. Any sensor technology that addresses issues related to this topic is acceptable. Full research papers with new results or a comprehensive review of the state-of-art of Aerospace Sensor Systems are encouraged for submission. There are no restrictions on the topics of interest of this special issue. In addition, authors are encouraged to submit full research papers. There is no length restriction.

Prof. Dr. Claude Nicollier
Guest Editor

Keywords

  • aerospace sensors

Published Papers (7 papers)

View options order results:
result details:
Displaying articles 1-7
Export citation of selected articles as:

Research

Jump to: Review

Open AccessArticle Globally Optimal Multisensor Distributed Random Parameter Matrices Kalman Filtering Fusion with Applications
Sensors 2008, 8(12), 8086-8103; doi:10.3390/s8128086
Received: 28 August 2008 / Revised: 26 November 2008 / Accepted: 3 December 2008 / Published: 8 December 2008
Cited by 33 | PDF Full-text (187 KB) | HTML Full-text | XML Full-text
Abstract
This paper proposes a new distributed Kalman filtering fusion with random state transition and measurement matrices, i.e., random parameter matrices Kalman filtering. It is proved that under a mild condition the fused state estimate is equivalent to the centralized Kalman filtering using all
[...] Read more.
This paper proposes a new distributed Kalman filtering fusion with random state transition and measurement matrices, i.e., random parameter matrices Kalman filtering. It is proved that under a mild condition the fused state estimate is equivalent to the centralized Kalman filtering using all sensor measurements; therefore, it achieves the best performance. More importantly, this result can be applied to Kalman filtering with uncertain observations including the measurement with a false alarm probability as a special case, as well as, randomly variant dynamic systems with multiple models. Numerical examples are given which support our analysis and show significant performance loss of ignoring the randomness of the parameter matrices. Full article
(This article belongs to the Special Issue Aerospace Sensor Systems)
Open AccessArticle Minimal-Drift Heading Measurement using a MEMS Gyro for Indoor Mobile Robots
Sensors 2008, 8(11), 7287-7299; doi:10.3390/s8117287
Received: 10 October 2008 / Revised: 12 November 2008 / Accepted: 14 November 2008 / Published: 17 November 2008
Cited by 15 | PDF Full-text (484 KB) | HTML Full-text | XML Full-text
Abstract
To meet the challenges of making low-cost MEMS yaw rate gyros for the precise self-localization of indoor mobile robots, this paper examines a practical and effective method of minimizing drift on the heading angle that relies solely on integration of rate signals from
[...] Read more.
To meet the challenges of making low-cost MEMS yaw rate gyros for the precise self-localization of indoor mobile robots, this paper examines a practical and effective method of minimizing drift on the heading angle that relies solely on integration of rate signals from a gyro. The main idea of the proposed approach is consists of two parts; 1) self-identification of calibration coefficients that affects long-term performance, and 2) threshold filter to reject the broadband noise component that affects short-term performance. Experimental results with the proposed phased method applied to Epson XV3500 gyro demonstrate that it effectively yields minimal drift heading angle measurements getting over major error sources in the MEMS gyro output. Full article
(This article belongs to the Special Issue Aerospace Sensor Systems)
Open AccessArticle Can Commercial Digital Cameras Be Used as Multispectral Sensors? A Crop Monitoring Test
Sensors 2008, 8(11), 7300-7322; doi:10.3390/s8117300
Received: 7 October 2008 / Revised: 30 October 2008 / Accepted: 14 November 2008 / Published: 17 November 2008
Cited by 34 | PDF Full-text (2321 KB) | HTML Full-text | XML Full-text
Abstract
The use of consumer digital cameras or webcams to characterize and monitor different features has become prevalent in various domains, especially in environmental applications. Despite some promising results, such digital camera systems generally suffer from signal aberrations due to the on-board image processing
[...] Read more.
The use of consumer digital cameras or webcams to characterize and monitor different features has become prevalent in various domains, especially in environmental applications. Despite some promising results, such digital camera systems generally suffer from signal aberrations due to the on-board image processing systems and thus offer limited quantitative data acquisition capability. The objective of this study was to test a series of radiometric corrections having the potential to reduce radiometric distortions linked to camera optics and environmental conditions, and to quantify the effects of these corrections on our ability to monitor crop variables. In 2007, we conducted a five-month experiment on sugarcane trial plots using original RGB and modified RGB (Red-Edge and NIR) cameras fitted onto a light aircraft. The camera settings were kept unchanged throughout the acquisition period and the images were recorded in JPEG and RAW formats. These images were corrected to eliminate the vignetting effect, and normalized between acquisition dates. Our results suggest that 1) the use of unprocessed image data did not improve the results of image analyses; 2) vignetting had a significant effect, especially for the modified camera, and 3) normalized vegetation indices calculated with vignetting-corrected images were sufficient to correct for scene illumination conditions. These results are discussed in the light of the experimental protocol and recommendations are made for the use of these versatile systems for quantitative remote sensing of terrestrial surfaces. Full article
(This article belongs to the Special Issue Aerospace Sensor Systems)
Open AccessArticle Motion Compensation of Moving Targets for High Range Resolution Stepped-Frequency Radar
Sensors 2008, 8(5), 3429-3437; doi:10.3390/s8053429
Received: 7 May 2008 / Accepted: 21 May 2008 / Published: 23 May 2008
Cited by 17 | PDF Full-text (100 KB) | HTML Full-text | XML Full-text
Abstract
High range resolution (HRR) profiling using stepped-frequency pulse trains suffers from range shift and the attenuation/dispersion of range profiles while the target of interest is moving. To overcome these two drawbacks, a new algorithm based on the maximum likelihood (ML) estimation is proposed
[...] Read more.
High range resolution (HRR) profiling using stepped-frequency pulse trains suffers from range shift and the attenuation/dispersion of range profiles while the target of interest is moving. To overcome these two drawbacks, a new algorithm based on the maximum likelihood (ML) estimation is proposed in this paper. Without altering the conventional stepped-frequency waveform, this algorithm can estimate the target velocity and thereby compensate the phase errors caused by the target’s motion. It is shown that the velocity can be accurately estimated and the range profile can be correctly reconstructed. Full article
(This article belongs to the Special Issue Aerospace Sensor Systems)
Open AccessArticle Range and Velocity Estimation of Moving Targets Using Multiple Stepped-frequency Pulse Trains
Sensors 2008, 8(2), 1343-1350; doi:10.3390/s8021343
Received: 2 February 2008 / Accepted: 20 February 2008 / Published: 22 February 2008
Cited by 14 | PDF Full-text (224 KB) | HTML Full-text | XML Full-text
Abstract
Range and velocity estimation of moving targets using conventional steppedfrequencypulse radar may suffer from the range-Doppler coupling and the phasewrapping. To overcome these problems, this paper presents a new radar waveform namedmultiple stepped-frequency pulse trains and proposes a new algorithm. It is shown
[...] Read more.
Range and velocity estimation of moving targets using conventional steppedfrequencypulse radar may suffer from the range-Doppler coupling and the phasewrapping. To overcome these problems, this paper presents a new radar waveform namedmultiple stepped-frequency pulse trains and proposes a new algorithm. It is shown that byusing multiple stepped-frequency pulse trains and the robust phase unwrapping theorem(RPUT), both of the range-Doppler coupling and the phase wrapping can be robustlyresolved, and accordingly, the range and the velocity of a moving target can be accuratelyestimated. Full article
(This article belongs to the Special Issue Aerospace Sensor Systems)

Review

Jump to: Research

Open AccessReview Small Magnetic Sensors for Space Applications
Sensors 2009, 9(4), 2271-2288; doi:10.3390/s90402271
Received: 23 December 2008 / Revised: 7 March 2009 / Accepted: 26 March 2009 / Published: 30 March 2009
Cited by 59 | PDF Full-text (418 KB) | HTML Full-text | XML Full-text
Abstract
Small magnetic sensors are widely used integrated in vehicles, mobile phones, medical devices, etc for navigation, speed, position and angular sensing. These magnetic sensors are potential candidates for space sector applications in which mass, volume and power savings are important issues. This work
[...] Read more.
Small magnetic sensors are widely used integrated in vehicles, mobile phones, medical devices, etc for navigation, speed, position and angular sensing. These magnetic sensors are potential candidates for space sector applications in which mass, volume and power savings are important issues. This work covers the magnetic technologies available in the marketplace and the steps towards their implementation in space applications, the actual trend of miniaturization the front-end technologies, and the convergence of the mature and miniaturized magnetic sensor to the space sector through the small satellite concept. Full article
(This article belongs to the Special Issue Aerospace Sensor Systems)
Figures

Open AccessReview Thermographic Phosphors for High Temperature Measurements: Principles, Current State of the Art and Recent Applications
Sensors 2008, 8(9), 5673-5744; doi:10.3390/s8095673
Received: 25 July 2008 / Revised: 1 September 2008 / Accepted: 5 September 2008 / Published: 15 September 2008
Cited by 136 | PDF Full-text (2728 KB) | HTML Full-text | XML Full-text
Abstract
This paper reviews the state of phosphor thermometry, focusing on developments in the past 15 years. The fundamental principles and theory are presented, and the various spectral and temporal modes, including the lifetime decay, rise time and intensity ratio, are discussed. The entire
[...] Read more.
This paper reviews the state of phosphor thermometry, focusing on developments in the past 15 years. The fundamental principles and theory are presented, and the various spectral and temporal modes, including the lifetime decay, rise time and intensity ratio, are discussed. The entire phosphor measurement system, including relative advantages to conventional methods, choice of phosphors, bonding techniques, excitation sources and emission detection, is reviewed. Special attention is given to issues that may arise at high temperatures. A number of recent developments and applications are surveyed, with examples including: measurements in engines, hypersonic wind tunnel experiments, pyrolysis studies and droplet/spray/gas temperature determination. They show the technique is flexible and successful in measuring temperatures where conventional methods may prove to be unsuitable. Full article
(This article belongs to the Special Issue Aerospace Sensor Systems)

Journal Contact

MDPI AG
Sensors Editorial Office
St. Alban-Anlage 66, 4052 Basel, Switzerland
sensors@mdpi.com
Tel. +41 61 683 77 34
Fax: +41 61 302 89 18
Editorial Board
Contact Details Submit to Sensors
Back to Top