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 "...

Examples

Embodiment

[0059] Firstly, the parameters of the frequency control array are initialized, and then the interference signal model is established to locate the target in the space, and then the time-dependent frequency offset is designed based on the target position information, and random variables are added to destroy the linear distribution of the frequency offset to form a point Beam, and then use the frequency offset to establish a time-dependent frequency control array point interference signal model, and finally weight the model beam pattern so that the beam is aimed at the interference target and transmitted at a higher power to achieve interference. The specific implementation steps are as figure 1 Shown:

[0060] Step 1: Initialize the frequency control array parameters, the specific process is as follows:

[0061] Because the working frequency band of the remote control signal of the UAV is hopping within the range of 2.4GHz-2.483GHz, the parameters of the frequency control arr...

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 "...

Examples

Embodiment

[0059] Firstly, the parameters of the frequency control array are initialized, and then the interference signal model is established to locate the target in the space, and then the time-dependent frequency offset is designed based on the target position information, and random variables are added to destroy the linear distribution of the frequency offset to form a point Beam, and then use the frequency offset to establish a time-dependent frequency control array point interference signal model, and finally weight the model beam pattern so that the beam is aimed at the interference target and transmitted at a higher power to achieve interference. The specific implementation steps are as figure 1 Shown:

[0060] Step 1: Initialize the frequency control array parameters, the specific process is as follows:

[0061] Because the working frequency band of the remote control signal of the UAV is hopping within the range of 2.4GHz-2.483GHz, the parameters of the frequency control arr...

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