Frequency diversity array radar-communication integration method

A frequency diversity array and frequency diversity technology, which is applied in the field of radar communication, can solve the problem that the application scenarios of radar communication are not proposed.

Active Publication Date: 2017-11-24
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology

[0004] The above two methods and other current radar communication integrated signal design methods do not propose the application scenario of radar communication integration, nor do they involve the application of beamforming array radar in integrated signal design

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  • Frequency diversity array radar-communication integration method

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Embodiment Construction

[0108] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited.

[0109] figure 1 The implementation process of the present invention is shown. Firstly, the integrated array radar transmission signal is designed; then the radar communication integration application scene judgment model is established, and whether the airspace target exists is determined according to the correlation between a group of modulated transmission signals and echoes: if determined If the target does not exist, the echo signal is processed by communication receiving signal; if it is determined that the target exists, the echo signal is processed by radar receiving signal.

[0110] The schematic diagram of the transmitting part of the FDCA radar array is as follows: figure 2 shown.

[0111] (1) A frequency diversity Chirps array (FDCA) radar transmission system is proposed, and the digita...

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Abstract

The invention provides a frequency diversity array radar-communication integration method. Digital baseband signals are combined with frequency diversity Chirps array signals to act as an integrated transmitting signal through a binary phase shift keying modulation mode by using the radar pulse transmitting mode. A radar-communication integration application scene judgment model is established, the target existence situation is judged through the correlation of the transmitting signal and the received echo signal, and then whether target positioning processing or communication processing is performed is determined. The radar-communication integration application scene judgment model and a radar function and communication function application time discrimination mechanism are established. The integrated transmitting signal forms beams, the distance dependence can suppress clutter interference, and the azimuth dependence enables the beams to perform automatic scanning in the space. Baseband beam formation is performed on each path of baseband signal in communication signal receiving processing to enhance the space gain, and distance angle decoupling is completed through a set of modulated transmitting pulses so as to realize positioning of a single target.

Description

technical field [0001] The invention relates to the technical field of radar communication, in particular to an integrated method for frequency diversity array radar communication. Background technique [0002] The integrated radar communication system based on signal sharing has been extensively studied after the US Naval Laboratory carried out the verification of the ship-based advanced multifunctional radio frequency concept plan in 2005. The waveform design of the shared signal has become the main research problem. Radar signal How to be compatible with communication signals is a difficult problem in research. At present, there are mainly two design methods proposed in the aspect of radar communication integrated signal design: [0003] One is based on the pulse compression radar signal, using the quasi-orthogonality of the chirp signal frequency modulation slope to carry out integrated signal design; the other is based on the OFDM radar signal, using the pulse transmis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/04H04L27/20
CPCG01S13/04H04L27/20
Inventor 欧阳缮黄高见谢跃雷李晶晶徐子安黄东红
Owner GUILIN UNIV OF ELECTRONIC TECH
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