Array radar signal transmitting and receiving method under radio frequency shielding signal

Abstract

The invention discloses an array radar signal transmitting and receiving method under a radio frequency shielding signal. The idea of the invention includes the following steps: transmitting signals by a local side radar, determining interference signals in the signals transmitted by the local side radar, constructing an objective function and solving the objective function, obtaining an optimal detection signal matrix in the signals transmitted by the local side radar, and then simultaneously transmitting the optimal detection signal matrix and the interference signals in the signals transmitted by the local side radar in a radar signal transmitting antenna network, obtaining a radar detection echo signal with low interference after an opposite side target reflects the signals, receivingthe radar detection echo signal with low interference by a radar signal receiving antenna network, fusing and accumulating the received radar detection echo signal with low interference to obtain thefused and accumulated radar detection echo signal, and performing pulse compression processing on the fused and accumulated radar detection echo signal to further obtain the location of the opposite side target, wherein the location of the opposite side target is an array radar signal transmitting and receiving result under the radio frequency shielding signal.

Description

Technical field [0001] The invention belongs to the field of communication technology, and in particular relates to a method for transmitting and receiving array radar signals under radio frequency shielding signals, which is suitable for effectively interfering with the other side while enabling our side to obtain detection capability. Background technique [0002] In modern radar countermeasure systems, according to the different sources of interference energy, it can be divided into active interference and passive interference. In these two interference methods, the configuration of active interference is more flexible and more destructive, making It has become the most widely studied form of interference. [0003] The active interference of radar refers to the radar that interferes with the other party's radar by transmitting specific signals. According to the type of transmitted signal, it is divided into two types: suppressive interference and deceptive interference; in suppr...

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Problems solved by technology

[0003] Active jamming of radar means that radar interferes with the opponent's radar by transmitting specific signals. According to the type of transmitted signal, it is divided into two types: suppressive jamming and deceptive jamming; in suppressive jamming, radar emits large-energy suppressive The jamming signal is used to interfere with the opponent's radar, making it incapable of working, but at this time we need to call other radars to transmit detection signals to detect the opponent's position, which will cause a huge loss in time, space and resources for our radar waste

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