Low-altitude target early warning system based on WLAN signals and implementation method thereof

Abstract

The present invention relates to a low-altitude target early warning system based on WLAN signals and an implementation method thereof. The system comprises: a signal receiving module configured to receive first radio-frequency signals emitted by a WLAN base station, observe second radio-frequency signals returned by an observation area and output first signals and output signals after amplification, filtering and analog-digital conversion; a communication module configured to transmit first signals and second signals output from the signal receiving module to a software module; and the software module comprising a first module, a second module, a third module, a fourth module, a fifth module, a sixth module, a seventh module, an eighth module, a ninth module, a tenth module, an eleventh module, a twelfth module and a thirteenth module and configured to perform a series of processing for the first signals and the second signals to obtain low-altitude target images and perform extraction of the shape, the position and the attribute of the target in the low-altitude target images to obtain early warning information. The low-altitude target early warning system can solve the problemsthat a current low-altitude target early warning system is high in price and weak in detection ability.

Description

technical field [0001] The invention relates to a low-altitude target early warning system and an implementation method thereof, in particular to a low-altitude target early warning system using WLAN signals and an implementation method thereof, belonging to the field of security technology. Background technique [0002] The low-altitude target early warning system is a kind of system that can detect and obtain two-dimensional images of targets moving at close range on the earth's surface, and has a wide range of applications in the field of national defense. [0003] Existing technical solutions related to early warning of low-altitude targets such as "CN-106199591-Low-altitude early-warning radar with high detection accuracy" and "CN105974408 A low-altitude early-warning radar" all use active photoelectric signals, and their shortcomings mainly include: [0004] (1) The above-mentioned system is an active system, and the system includes a transmitter and a receiver, and th...

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Problems solved by technology

[0007] In order to solve the problems in the above-mentioned prior art, the object of the present invention is to provide a low-altitude target early warning system based on WLAN signals and its implementation method, so as to solve the problems of high system price and weak reconnaissance capability

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