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Article
Publication date: 3 January 2017

Jiaqi Jia and Haibin Duan

The purpose of this paper is to propose a novel target automatic recognition method for unmanned aerial vehicle (UAV), which is based on backpropagation – artificial neural…

Abstract

Purpose

The purpose of this paper is to propose a novel target automatic recognition method for unmanned aerial vehicle (UAV), which is based on backpropagation – artificial neural network (BP-ANN) algorithm, with the objective of optimizing the structure of backpropagation network, to increase the efficiency and decrease the recognition time. A hardware-in-the-loop system for UAV target automatic recognition is also developed.

Design/methodology/approach

The hybrid model of BP-ANN structure is established for aircraft automatic target recognition. This proposed method identifies controller parameters and reduces the computational complexity. Approaching speed of the network is faster and recognition accuracy is higher. This kind of network combines or better fuses the advantages of backpropagation artificial neural algorithm and Hu moment. with advantages of two networks and improves the speed and accuracy of identification. Finally, a hardware-in-the-loop system for UAV target automatic recognition is also developed.

Findings

The double hidden level backpropagation artificial neural can easily increase the speed of recognition process and get a good performance for recognition accuracy.

Research limitations/implications

The proposed backpropagation artificial neural algorithm can be ANN easily applied to practice and can help the design of the aircraft automatic target recognition system. The standard backpropagation algorithm has some obvious drawbacks, namely, converging slowly and falling into the local minimum point easily. In this paper, an improved algorithm based on the standard backpropagation algorithm is constructed to make the aircraft target recognition more practicable.

Originality/value

A double hidden levels backpropagation artificial neural algorithm is presented for automatic target recognition system of UAV.

Details

Aircraft Engineering and Aerospace Technology, vol. 89 no. 1
Type: Research Article
ISSN: 1748-8842

Keywords

Book part
Publication date: 2 May 2006

Michael Lewis, Jumpol Polvichai, Katia Sycara and Paul Scerri

Wide area search munitions (WASMs) are a cross between an unmanned aerial vehicle and a munition. With an impressive array of onboard sensors and autonomous flight capabilities…

Abstract

Wide area search munitions (WASMs) are a cross between an unmanned aerial vehicle and a munition. With an impressive array of onboard sensors and autonomous flight capabilities WASMs might play a variety of roles on the modern battle field including reconnaissance, search, battle damage assessment, or communications relay.

Details

Human Factors of Remotely Operated Vehicles
Type: Book
ISBN: 978-0-76231-247-4

Book part
Publication date: 2 May 2006

Christopher D. Wickens, Stephen R. Dixon and Michael S. Ambinder

Fig. 1 presents the interface used by our pilots to fly the UAV simulation.

Abstract

Fig. 1 presents the interface used by our pilots to fly the UAV simulation.

Details

Human Factors of Remotely Operated Vehicles
Type: Book
ISBN: 978-0-76231-247-4

Article
Publication date: 17 July 2020

Pulla Rao Chennamsetty, Guruvareddy Avula and Ramarao Chunduri buchhi

The purpose of the research work is to detect camouflaged objects in autonomous systems of military applications and civilian applications such as detecting insects in paddy…

Abstract

Purpose

The purpose of the research work is to detect camouflaged objects in autonomous systems of military applications and civilian applications such as detecting insects in paddy fields, identifying duplicate products in different texture environments.

Design/methodology/approach

Camouflaged objects detection is performed by smoothing texture with nonlinear models and characterizing with statistical methods to detect the objects.

Findings

There are few challenges in existing camouflaged objects detection due to the complexities involved in the detection process. This work proposes a constructive approach with texture statistical characterization for camouflage detection. The proposed technique is found to be better than existing methods while assessing its performance using precision and recall.

Research limitations/implications

Even though there is lot of research work carried, there are few challenges for autonomous systems in camouflage detection due to the complexities involved in the detection process such as texture modeling and dynamic background problems and environment conditions for autonomous system.

Practical implications

Camouflage detection finds potential applications in security systems, surveillance, military and autonomous systems. The proposed work is implemented in different environments for camouflage detection.

Social implications

Social problems such as image acquisition environment, time of day, desert, forest and grass fields of paddy.

Originality/value

The proposed method detects camouflaged objects in autonomous systems where it is applied for images of different kinds. It is found to be effective on images recorded in battlefield and challenging environments.

Details

International Journal of Intelligent Unmanned Systems, vol. 9 no. 1
Type: Research Article
ISSN: 2049-6427

Keywords

Book part
Publication date: 4 December 2009

David N. Bibby

This study explores the relationship between brand image and brand equity in the context of sports sponsorship. Keller's (1993, 2003) customer-based brand equity models are the…

Abstract

This study explores the relationship between brand image and brand equity in the context of sports sponsorship. Keller's (1993, 2003) customer-based brand equity models are the conceptual inspiration for the research, with Faircloth, Capella, and Alford's (2001) conceptual model – adapted from the work of Aaker (1991) and Keller (1993) – the primary conceptual model. The study focuses on the sponsorship relationship between the New Zealand All Blacks and their major sponsor and co-branding partner, adidas. The sporting context for the study was the 2003 Rugby World Cup held in Australia. Data were collected from two independent samples of 200 respondents, utilizing simple random sampling procedures. A bivariate correlation analysis was undertaken to test whether there was any correlation between changes in adidas' brand image and adidas' brand equity as a result of the All Blacks' performance in the 2003 Rugby World Cup. Results support the view that Keller (1993, 2003) proposes that brand image is antecedent to the brand equity construct. Results are also consistent with the findings of Faircloth et al. (2001) that brand image directly impacts brand equity.

Details

Perspectives on Cross-Cultural, Ethnographic, Brand Image, Storytelling, Unconscious Needs, and Hospitality Guest Research
Type: Book
ISBN: 978-1-84950-604-5

Article
Publication date: 6 February 2017

Yongsheng Xiao, Lizhen Huang and Jianjiang Zhou

The purpose of this paper is to solve the azimuth sensitivity of a high-resolution range profile (HRRP), which is one of the biggest obstacles faced by a radar automatic target

Abstract

Purpose

The purpose of this paper is to solve the azimuth sensitivity of a high-resolution range profile (HRRP), which is one of the biggest obstacles faced by a radar automatic target recognition (RATR) system.

Design/methodology/approach

Aimed at addressing the shortcomings of the equal angular-sector segmentation based on the scatterer model, an adaptive angular-sector segmentation is proposed on the basis of grey incidence analysis (GIA).

Findings

The main conclusions reached are as follows. First, the adaptive angular-sector segmentation in terms of GIA is suitable for RATR based on the HRRP; and, second, the adaptive angular-sector segmentation based on the type-B degree of grey incidence model is better than the Deng-Si degree of grey incidence model and the degree of grey slope incidence model.

Practical implications

The outcome obtained in this paper can be selected for the RATR application.

Originality/value

This paper has been built on the basis of previous research achievements, and a new RATR method of adaptive angular-sector segmentation is presented based on the GIA.

Article
Publication date: 1 May 1975

APPLIED Technology, Middle East and European marketing and technical support representative of PF Industries Inc, will exhibit ground support equipment supplied to airlines…

Abstract

APPLIED Technology, Middle East and European marketing and technical support representative of PF Industries Inc, will exhibit ground support equipment supplied to airlines worldwide.

Details

Aircraft Engineering and Aerospace Technology, vol. 47 no. 5
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 29 July 2021

Aarathi S. and Vasundra S.

Pervasive analytics act as a prominent role in computer-aided prediction of non-communicating diseases. In the early stage, arrhythmia diagnosis detection helps prevent the cause…

Abstract

Purpose

Pervasive analytics act as a prominent role in computer-aided prediction of non-communicating diseases. In the early stage, arrhythmia diagnosis detection helps prevent the cause of death suddenly owing to heart failure or heart stroke. The arrhythmia scope can be identified by electrocardiogram (ECG) report.

Design/methodology/approach

The ECG report has been used extensively by several clinical experts. However, diagnosis accuracy has been dependent on clinical experience. For the prediction methods of computer-aided heart disease, both accuracy and sensitivity metrics play a remarkable part. Hence, the existing research contributions have optimized the machine-learning approaches to have a great significance in computer-aided methods, which perform predictive analysis of arrhythmia detection.

Findings

In reference to this, this paper determined a regression heuristics by tridimensional optimum features of ECG reports to perform pervasive analytics for computer-aided arrhythmia prediction. The intent of these reports is arrhythmia detection. From an empirical outcome, it has been envisioned that the project model of this contribution is more optimal and added a more advantage when compared to existing or contemporary approaches.

Originality/value

In reference to this, this paper determined a regression heuristics by tridimensional optimum features of ECG reports to perform pervasive analytics for computer-aided arrhythmia prediction. The intent of these reports is arrhythmia detection. From an empirical outcome, it has been envisioned that the project model of this contribution is more optimal and added a more advantage when compared to existing or contemporary approaches.

Details

International Journal of Pervasive Computing and Communications, vol. 20 no. 1
Type: Research Article
ISSN: 1742-7371

Keywords

Article
Publication date: 1 August 1974

Aeronautical & General Instruments Ltd, will exhibit their R 128 recording cameras, designed to photograph the information displayed on the cathode ray tube of an aircraft's…

Abstract

Aeronautical & General Instruments Ltd, will exhibit their R 128 recording cameras, designed to photograph the information displayed on the cathode ray tube of an aircraft's reconnaissance radar.

Details

Aircraft Engineering and Aerospace Technology, vol. 46 no. 8
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 1 May 1973

Airliners carrying between 800 and 1,000 passengers, weighing between 1m and 1.5m lb at take‐off may become a reality after 1980, according to Gordon Sim, director of science and…

Abstract

Airliners carrying between 800 and 1,000 passengers, weighing between 1m and 1.5m lb at take‐off may become a reality after 1980, according to Gordon Sim, director of science and engineering at Lockheed‐California Co. His prediction is based on a Lockheed study forecasting air passenger traffic growing at 11.4 per cent through the 1970's, 9.1 per cent through the 1980's and 66 per cent in the 1990's. While he believes aircraft technology is available to build this size airliner, producing an engine with the necessary thrust of about 90,0001b for a four engined aircraft may not be so easy, specially when taking into account noise levels. Mr Sim sees little significant penetration of V/TOL or S/TOL aircraft into the market before 1980 due to slow growth. Even then the relatively high operating costs would be rivalled by conventional wide‐bodied aircraft which will be designed with more advanced high‐lift systems for reduced take‐off and landing.

Details

Aircraft Engineering and Aerospace Technology, vol. 45 no. 5
Type: Research Article
ISSN: 0002-2667

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