Time-independent frequency-controlled array spot-shaped interference beam forming method

Abstract

The invention discloses a time- independent frequency-controlled array spot-shaped interference beam forming method. Through the controllable beam forming method, a transmitting beam can only performenergy convergence at a designated target, so that interference radiation energy received by surrounding targets is reduced. The time- independent frequency-controlled array spot-like interference beam forming method specifically comprises the following steps that step 1, frequency-controlled array parameters are initialized; step 2, an interference signal model is established; step 3, a target echo signal is received and the position of an interfering target is determined; step 4, the frequency offset of time-dependent removal is designed; step 5, random variables are introduced into the random frequency offset of the time-independent; step 6, a time-independent frequency control array spot-shaped interference signal model is established; step 7, phase weighting is carried out on a beam pattern; and step 8, fixed-point interference is realized. According to the time- independent frequency-controlled array spot-shaped interference beam forming method, fixed-point interference can be performed on the target more accurately, the energy of the frequency-controlled array beam can be continuously converged at the target, and meanwhile, the influence on the surrounding environment is reduced by changing an original S-shaped beam into a spot-shaped beam.

Description

technical field [0001] The invention relates to the technical field of array signal processing, in particular to a method for forming point-shaped interference beams of frequency-controlled arrays with time-dependence removal. Background technique [0002] In recent years, thanks to the rapid and widespread proliferation of drone technology, various types of drones have been launched on the market. Due to their wide variety and comprehensive functions, they not only bring convenience to people's lives but also improve Work efficiency, but related accidents also occur frequently, which poses a huge challenge to social security and public security management. [0003] In order to maintain social security and the concealment of some special places, various research institutions and manufacturers at home and abroad have also developed a variety of interference methods, such as the UAV rapid capture and failure system of the United States Alliant Technology Systems (ATK) ; The "...

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Problems solved by technology

[0004] Aiming at the deficiencies of the existing technology, the technical problem solved by the present invention is how to overcome the inability of the frequency control array energy to continuously converge at the target and how to reduce the beam energy convergence area to reduce the impact of the interference beam on the surrounding environment

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