Abstract
The research results on the autodyne signal formation in microwave oscillators, which are exposed under the impact of the proper reflected emission and, at the same time, of the external frequency-locked signal are presented. The basic relations are obtained for signal analysis under the condition of the quasistatic target movements. The theoretical research results are confirmed by experimental data obtained on the example of an oscillator made on the basis of the 8mm-range Gunn diode.
Highlights
Autodyne transceivers are widely used in various Short Range Radar Systems, in process parameter sensors and in the measuring systems in industry and in the transport as well as for various scientific applications, military systems and medicine devices [1,2,3,4,5]
In order to search for new AD features and to improve its parameters, a number of publications were prepared concerning the research results of AD synchronised from the additional microwave oscillator [5]
If you introduce the initial detuning between the frequencies ex and 0 closer to the edge of the synchronisation band, in synchronised AD (SAD) there is the possibility of a significant increase in the transfer coefficient of the autodyne signal compared to conventional AD
Summary
Autodyne transceivers (or just autodynes - AD) are widely used in various Short Range Radar Systems, in process parameter sensors and in the measuring systems in industry and in the transport as well as for various scientific applications, military systems and medicine devices [1,2,3,4,5]. In the literature known to the authors, the features of the generation of synchronised AD (SAD) signals, which should be taken into account at its utilization, have not been sufficiently studied [6]. In this connection, the aim of this paper is to fill up this gap
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