Air and Spaceborne Radar Systems: An Introduction by P. Lacomme, J.C. Marchais, J.P. Hardange, E. Normant

By P. Lacomme, J.C. Marchais, J.P. Hardange, E. Normant

This creation to the sector of radar is meant for real clients of radar. It makes a speciality of the historical past, major ideas, services, modes, houses and particular nature of contemporary airborne radar. The ebook examines radar's function in the approach while engaging in is assigned missions, exhibiting the chances of radar in addition to its boundaries. eventually, given the altering operational necessities and the aptitude unfolded by means of glossy technological advancements, a concluding part describes how radar might evolve within the future.The authors assessment the present nation of the most different types of airborne and spaceborne radar structures, designed for particular missions in addition to for the worldwide surroundings in their host airplane or satellites. They contain quite a few examples of the parameters of those radars. The emphasis within the publication isn't just on a selected radar approach, yet both at the major radar capabilities and missions. whether a variety of recommendations are defined during this e-book, the point of interest is on these that are attached to sensible functions.

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12. 5 1 2 3 4 5 Wavelength cm 10 Atmospheric Absorption Water (in the form of rain or fog) considerably increases this absorption measured in dB/km. In the X- and Ku-bands, and above, this phenomenon assumes major importance. It imposes an upper limit on the frequency band used for any given application. /DFRPPH5DGDUERRN 3DJH  0RQGD\ )HEUXDU\    30 46 Part I — General Principles Chapter 1 showed how choosing a high frequency helps increase antenna gain. A trade-off must be reached based on the desired application: • • • • For ground-based radars or air-surveillance radars on large platforms, you can use large antenna.

Choosing the wavelength for a specific radar involves a trade-off between a number of factors such as • • • the properties of electromagnetic waves (see Chapter 4) operational aims and applications available volume and technology, etc. 75 cm). 1 Introduction Nowadays airborne and space-based radars have some civilian applications, but most of them are defense oriented. Airborne civilian applications concern mainly weather radars of liners and Exclusive Economic Zone surveillance (EEZ). Space-based civilian radars are used for global earth resource management.

The weapons range from conventional to LASERguided bombs or long-range Air-to-Ground missiles. These fighters used to rely on optical fire control systems (visible or infrared), but as these are subject to severe adverse weather limitations and are quite short-range, the radars are more and more the preferred solutions for all weather standoff weapon delivery. Fixed targets like bridges or buildings can be designated in geographical coordinates (WGS 84) to the weapon at the Mission Preparation level with data supplied by Surveillance or Reconnaissance missions (if available with sufficient accuracy).

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