Calculation method of frequency response curve of chaff bomb

Abstract

The invention discloses a calculation method of a frequency response curve of a chaff bomb. The method comprises the following steps: setting an electromagnetic wave frequency interval needing to be simulated, and calculating a frequency response curve of a chaff filament which is of each size and at each frequency point of the electromagnetic wave frequency interval, wherein chaff filaments of various sizes are contained in each chaff bomb; carrying out superposition synthesis on the frequency response curves, which are obtained by the chaff filaments of all the sizes, of each frequency pointof the electromagnetic wave frequency interval, to obtain the frequency response curve of the chaff bomb at each frequency point of the electromagnetic wave frequency interval; and adjusting the obtained frequency response curve of the chaff bomb at each frequency point of the electromagnetic wave frequency interval according to a bird nest effect, wherein only corresponding parameters of the curve need to be adjusted. According to the calculation method of the invention, a whole process does not need artificial participation, and errors between a finally formed curve graph and a curve underan actual situation basically do not exist.

Description

technical field [0001] The invention relates to a calculation method for the frequency response curve of chaff springs. technical background [0002] For passive jammers in radar electronic countermeasures, chaff bombs of different formulations are often composed of half-wavelength chaff wires of different numbers and lengths. This kind of chaff formula bomb is often equipped as a self-defense weapon for weapons such as fighter planes, ships or tanks. When attacked by air-to-air missiles or surface-to-air missiles, chaff bombs are fired to interfere with the electromagnetic waves of the missile seeker and form false targets. To divert missiles to complete electronic countermeasures. Chaff wires of different lengths produce different magnitudes of electromagnetic scattering for different electromagnetic frequencies. At present, the algorithm of the chaff elastic response curve requires too much manual participation in the result adjustment. The algorithm mainly uses the hal...

AI Technical Summary

Problems solved by technology

Most of the whole process requires manual participation, and there is a large error between the final graph and the actual curve

The result graph generated at the same time cannot be set for line width, color, etc.

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