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ARTICLES

Optimization of a C-band Pulse Altimeter

In this paper, parameters of an old technology altimeter are discussed. Then, after deriving the measure of quality factor (height measurement accuracy), suitable solutions for improving the technology, namely decreasing its peak power (from 62.5 to 10.9w) to improve its LPI characteristics while maintaining its performance quality, are presented. In this altimeter, by interchanging older microwave devices such as a traveling-wave tube (TWT) with newer solid state devices, quality and LPI characteristics of these systems are improved despite the reduction in their size and cost. Therefore, access to systematic parameters of a pulse altimeter with low power, smaller weight and dimensions, higher security and defence capabilities is possible. In this way, it is of special importance to trade off the parameters and select an overall optimum solution.
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