Abstract

Abstract This paper presents some possibilities offered by a specific microwave sensor called an I-Q demodulator or complex correlator. It is shown that this narrow-band complex correlator is able to provide information about the velocity profile and the position of a monochromatic transmitter which is inside a predefined area; this situation is qualified as cooperative configuration. Nevertheless, this complex correlator can also be used in the situation where only reflected signals are considered — non cooperative configuration — such as in anticollision and level measurement processes. Such sensors can naturally be used in many industrial application fields like robotics, tank gauging and berthing aid. Therefore, to answer industrial requirements, we show in this paper that the necessary compromise between good performance and low cost can be reached.

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