System design
This chapter considers the principal factors affecting the design of a GPR in order to illustrate those factors which need to be considered. The aim is to illustrate the technical options available to the operator or designer. This is not a rigorous treatment of radar system analysis but does enable an order of magnitude estimate of the various loss components to be assessed. Many radar systems generate a fast rise time impulsive voltage, so the signal level is best considered from the point of view of voltages across particular nodes in the network. A consideration of this approach is given at the end of this section, and an expression suitable for evaluation using MathCAD™ is included, together with a series of modelled results for particular values.
System design, Page 1 of 2
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