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Radar embedded communication method and system

A communication method and technology for a communication system, applied in the field of radar embedded communication methods and systems, can solve problems such as many interference situations, reduced radar embedded communication performance, mutual signal interference, etc., so as to avoid co-frequency signal interference and improve detection. Performance, the effect of increasing the number of communication information

Pending Publication Date: 2021-02-02
WUYI UNIV
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Problems solved by technology

Spectrum coexistence will cause the problem of mutual interference between signals, which will reduce the performance of radar embedded communication and cause more interference

Method used

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  • Radar embedded communication method and system
  • Radar embedded communication method and system
  • Radar embedded communication method and system

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Embodiment Construction

[0051] This part will describe the specific embodiment of the present invention in detail, and the preferred embodiment of the present invention is shown in the accompanying drawings. Each technical feature and overall technical solution of the invention, but it should not be understood as a limitation on the protection scope of the present invention.

[0052] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0053] I...

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Abstract

The invention discloses a radar embedded communication method and system, and the method comprises the steps: building a target function at a radar end through employing a power spectrum matching method, solving the target function through employing a quasi-Newton method, obtaining a discrete stop band constraint waveform, and transmitting the discrete stop band constraint waveform; at a label end, modulating a discrete stop band constraint waveform, embedding the communication information to be transmitted to obtain a communication signal, acquiring a radar receiving signal according to the communication signal and radar scattering echo and transmitting the signal. According to the invention, the same-frequency signal interference can be avoided, the frequency band utilization rate and the communication information number of the communication signal are improved, and the low bit error rate and the low interception rate of communication are realized under the condition of maintaining the radar detection performance.

Description

technical field [0001] The invention relates to the field of radar communication, in particular to a radar embedded communication method and system. Background technique [0002] Radar Embedded Communication (Radar Embedded Communication, REC) is to embed a small amount of communication information into the radar waveform to realize the active communication between the radar response tag and the radar. Radar embedded communication uses radar echoes as the carrier of communication signals to realize covert communication between friendly devices. Radar, communication and navigation systems are more and more widely used in society, resulting in very scarce spectrum resources, so that radar and communication systems have to work in the same frequency band. Spectrum coexistence will cause the problem of mutual interference between signals, which will reduce the performance of radar embedded communication and cause more interference. Contents of the invention [0003] The purp...

Claims

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Application Information

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IPC IPC(8): G01S7/41G01S7/02G01S7/36H04L25/03
CPCG01S7/414G01S7/418G01S7/411G01S7/023G01S7/36H04L25/03006
Inventor 麦超云刘子明黄传好秦传波
Owner WUYI UNIV
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