RADAR TARGET SIMULATOR WHEN PROBING WITH PRIMARILY LONG SIGNALS Russian patent published in 2014 - IPC G01S7/38 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to devices designed to simulate the frequency-time structure of a radar signal reflected from an underlying surface, from one or more targets, and can be used, for example, to simulate false targets and interference for protecting present targets and to simulate echo signals of radar sets and radar altimeters. Parameters of bright points of targets come from a separate external device. The invention enables to do without a multi-input adder of signals of bright points of targets and a set of modulators that are complex for implementation with a large number of bright points, especially during digital signal processing. Instead of an adder, the disclosed simulator has a synchroniser, one or two switches and a common modulator. In the version with two switches, only one common modulator is used instead of a set of modulators.

EFFECT: simple requirements for the simulator during both analogue and digital signal processing without considerable deterioration of quality of simulated target portraits when probing with primarily long signals.