A radiation signal simulation device and its implementation method

Abstract

The invention discloses a special radiation signal simulation device and an implementation method. The simulation device comprises a restraint condition construction unit, an array weighting coefficient calculating unit, an emission array amplitude control unit, an emission antenna array unit, a battle situation parameter management unit, a radar signal source unit, an up-conversion unit, a receiving array amplitude control unit, a receiving antenna array unit, a down-conversion unit and an intermediate frequency signal processing unit, wherein the restraint condition construction unit, the array weighting coefficient calculating unit, the emission array amplitude control unit and the emission antenna array unit are connected in sequence; the battle situation parameter management unit, the radar signal source unit and the up-conversion unit are connected in sequence; the receiving array amplitude control unit, the receiving antenna array unit, the down-conversion unit and the intermediate frequency signal processing unit are connected in sequence; the array weighting coefficient calculating unit is connected with the receiving array amplitude control unit; the up-conversion unit is connected with the emission antenna array unit; the emission antenna array unit is an emission antenna array consisting of a plurality of emission antenna array elements; the receiving antenna array unit is a receiving antenna array consisting of a plurality of receiving antenna array elements. By adopting the special radiation signal simulation device and the implementation method, nulls can be formed at a plurality of specified angles, a quick calculating process is achieved, and radiation signals with a capability of suppressing echoes in specific directions can be simulated.

Description

technical field [0001] The invention relates to a signal simulation device, in particular to a special radiation signal simulation device and an implementation method, belonging to the technical field of signal processing. Background technique [0002] With the study of anti-interference from strong scatterers and anti-radiation missiles, the control of radar antenna emission pattern has received extensive attention from scholars at home and abroad, and a series of research results have been achieved. For the control of the radar antenna pattern, the commonly used methods mainly include the amplitude weighting, initial phase weighting and array spacing weighting of the radar transmitting antenna array elements. Among them, the two methods of initial phase weighting and array spacing weighting need to use linearization approximation for the calculation of the weighted pattern, and the control is relatively complicated, so the amplitude weighting is more widely used. [0003]...

AI Technical Summary

Problems solved by technology

All the above methods can form a local optimum under certain conditions, and can form a null sink in the specified azimuth area of ​​the transmitting beam, but there are problems such as small sink amplitude, complex system design, and relatively long solution time. Not suitable for hardware implementation

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