VIA Technologies EPIA SN-Series Specifications download pdf (Page 16)

Background

Chapter 2. Background

In this Chapter a brief description of all the preparatory activities carried out during

the three years PhD course is reported, emphasizing those that led to the definition of the

subject of this work.

In Section 2.1 the AMSC project is discussed in detail; this study allowed to deepen

themes such as the development of optical systems for remote sensing purposes. Digital

sensor technologies, their electronic integration and optical layouting using CAO

(Computer Aided Optics) software are only part of the background knowledge acquired in

the course of this work. The AMSC project aimed to the development of a digital

multispectral camera equipped with an innovative tunable LCD filter ended with the need

to find a suitable platform to carry out functional tests on the prototype model, because of

the inherent difficulties in reproducing the same operational conditions.

Sections 2.2 and 2.3 describe two projects directly related to the previous one because

they are possible candidates for an image based attitude determination sensor that will be

utilized onboard the ALMASat-EO mission. STARS is a very accurate three axial

standalone attitude determination sensor that processes Earth image sequences in the

visible spectrum. STARS involves the use of an high frame rate detector which is

significantly different from that used on the AMSC and many image process algorithms

must be run in real time mode. LCCES is also an Earth sensor but working in the Thermal

Infrared spectrum. This project has much in common with both STARS and AMSC

because of the use of an image based sensing device and the development of custom

optics. This study is built around a new detector type, the uncooled microbolometer,

which allows the development of small size and low power systems without substantial

performances loss. Optics are also characterized by the use of Germanium lens which

have its own transmission window in the TIR spectrum.

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VIA Technologies EPIA SN-Series Specifications Page 16