Introduction toSynthetic Aperture Radar Systems for Small Aircrafts: Data Processing Approaches
The synthetic aperture radar (SAR) is considered now as the most effective instrument for producing radar images of ground scenes with a high spatial resolution. The usage of small aircrafts as the platform for the deployment of SAR systems is attractive from the point of view of many practical applications. Firstly, this enables for a substantial lowering of the exploitation costs of SAR sensors. Secondly, such solution provides a possibility to perform a rather quick surveillance and imaging of particular ground areas. Finally, the progress in this direction will allow for a much wider application of SAR sensors. However, the formation of high-quality SAR images with SAR systems deployed on small aircrafts is still a challenging problem. The main difficulties come from significant variations of the aircraft trajectory and the antenna orientation during real flights. These motion errors lead to defocusing, geometric distortions, and radiometric errors in SAR images. In this chapter, we describe three effective approaches to the SAR data processing, which enable the solution of the above problems: 1. Time-domain SAR processing with clutter-lock and geometric correction by resampling,…
Introduction To Analysis of the Maintenance Process of the Military Aircraft
This chapter presents the analysis of the maintenance process of a military aircraft with a detailed description of two areas, i.e. the process of maintaining and the process of operating. Each of these processes is briefly characterized. The section also involves methods enabling the determination of: residual durability of specified devices/systems of a military aircraft on the basis of the diagnostic parameters of these devices/systems, and the effectiveness of a combat task execution on the basis of information registered in the process of aiming. Each presented method is illustrated by a computational example. Tasks executed by the military aircraft A modern military aircraft (MMA) is a hybrid of the most up-to-date achievements in the field of materials engineering (the use of light metal alloys and composite structures), electronic engineering (fast microprocessor systems, modern systems in the field of power electronics), and specialized software supporting the maintenance process (automatic flight control system, integrated diagnostic systems). Due to such combination, tasks executed…
Strategies for Managing Multiple Projects
While managing a single project can be a challenging proposition, managing multiple projects truly separates the boys and girls from the men and women when it comes to project management.…
What is Crash Manoeuvring of Ship in Emergency Situation and what’s its Procedure?
“Crash” word is generally used to describe some kind of accident or damage when one object slams into another. However, in the shipping world, when the word is combined with…
What is Turbocharger?
Turbocharger is one of the most important parts of the main propulsion system of the ship. Turbocharger surging is a phenomenon, which affects the performance of the turbocharger and reduces…
What is an Entablature in Ship’s Engine?
An entablature is a part of the ship’s main engine. It is the housing which holds the cylinder liner, along with the scavenge air space and cooling water spaces. The…
A Chief Engineer’s Concern Regarding Slow Steaming of Ships
Slow steaming has been adopted by majority of companies and ship owners in order to survive in these tough times of rising fuel prices and financial recession. Originally started for…
Intelligent Engines – The New Generation Machines
Today the world needs engines that can cope up with the stringent emission norms and higher demands for robust, reliable and smart engines with low operational cost. To achieve the…
How to Prevent Crankcase Explosion on a Ship?
Crankcase explosion is one of the most dangerous reasons that can lead to massive accidents and fires on a ship. It is therefore imperative to prevent all the reasons that…
Procedure for Cross Head Bearing Removal of Marine Engine
It is very important in a large two stroke slow speed engine to transfer the power generated in the combustion chamber to the crankshaft without transmitting transverse forces to the…
