Download Air Force Colors 1926-1942 by Dana Bell PDF

By Dana Bell

Air strength colours Vol 1: 1926-42

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For air- and spaceborne radar the wave propagation conditions are more favourable than for ground-based radar. The beam of a high-flying radar has to cross the lower atmosphere layer while the beam of a ground-based radar is entirely buried in the lower atmosphere. Moreover, the interaction of the transmitted wave with the ground is reduced. This interaction causes additional sidelobes in the directivity pattern. • The platform motion offers the potential of high-resolution imaging through synthetic aperture processing, including interferometric imaging and change detection.

1 Environmental Effects ....................................... 2 Impact of System Parameters ........................... 3 Order Reducing Transform Processors ............................. 1 Conventional Processing .................................. 2 Space-time Transforms ..................................... 3 Spatial Transforms ............................................ 4 Auxiliary Sensor/Echo Processing (ASEP) ....... 4 Space-time Monopulse Processing ................................... 5 Summary ............................................................................

They are also most useful for illustrating the fundamentals. Therefore, most of the existing literature is focused on linear arrays. Moreover, linear arrays include all kinds of cylindrical array configurations whose axes are horizontal, and rectangular planar arrays. In Chapter 8 some considerations on circular arrays have been included. 1. 2 Radar signal processing tools In the following Sections of this chapter a few well-known signal processing tools which will be used in this book are summarised.

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