Intelligent generation method of range gate pull-off interference

A distance gate, intelligent technology, applied in the direction of radio wave measurement systems, instruments, etc., can solve the problems of failure of towing interference, easy to be locked by the enemy, affecting towing interference, etc., and achieve the effect of good interference effect.

Pending Publication Date: 2021-12-24
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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AI Technical Summary

Benefits of technology

This patented technology helps optimize communication for multiple devices simultanously without overlapping their signals or causing collisions with each other's data packets. It uses advanced techniques such as beamforming algorithms (BFA) that aim at optimally aligning transmission paths while minimizing distortion caused by multipath fading. By analyzing these models and selecting an optimal set of waves offsets, distances are determined which help reduce interference when transmitting radio frequency signals through different media like airplanes or wireless networks. Overall this innovative approach improves efficiency and reliability in communications across various types of equipment including sensors and cameras.

Problems solved by technology

This patents describes how current methods used to prevent radars from getting stuck or causing confusion during their operation are becoming less effective due to increased interferers such as clutter caused by other objects like buildings around them. Additionally, these techniques have limitations when trying to detect targets at long distances where they may move away quickly without triggering any changes.

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  • Intelligent generation method of range gate pull-off interference
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Embodiment Construction

[0033] The present invention mainly adopts the method of computer simulation experiment to verify, and all steps and conclusions are verified correctly on Matlab2014.

[0034] Concrete realization process of the present invention is as follows:

[0035] Step 1: Create a scene map of a jammer being tracked by the tracking radar of the fire control system in an air-to-air war, and initialize system parameters, mainly including: the initial position of the radar and the jammer, the movement mode of the jammer, etc.;

[0036] Such as figure 1 The scene diagram of a single jammer being tracked by a tracking radar is shown. In this embodiment, the radar is located at the origin of the Cartesian coordinate system, and the jammer moves in a straight line at a uniform speed away from the radar in a two-dimensional plane. The state vector of the jammer can be expressed as The initial state is X(1)=[50km 50m / s 55km 350m / s]'. The equation of motion followed is

[0037] X(k+1)=F(k)X(

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Abstract

The invention discloses an intelligent generation method of range gate pull-off interference, belongs to the technical field of electronic countermeasures and aims to solve the problem that a traditional range gate pull-off interference method ignores information interconnection among multiple frames and is not flexible. The method comprises the following steps of: analyzing a range gate pull-off interference process and establishing a range gate pull-off interference multi-frame optimization model; in order to measure the effect of range gate pull-off interference, selecting an average gate offset distance as a target function; aiming at the challenges that the intermediate state of the target function is unknown and noise is involved, fitting the target function by utilizing a Monte Carlo method; and finally, providing a range gate pull-off interference optimization method based on an improved particle swarm algorithm. The algorithm provided by the invention can dynamically adjust the pull-off distance of different frames, maximizes the range gate pull-off interference effect, and is superior to a traditional method in the aspects of pull-off success rate and pull-off distance.

Description

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Claims

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Application Information

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Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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