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Subcarrier clustering and power joint distribution method for radar communication integrated system

A joint allocation and subcarrier technology, applied in power management, wireless communication, radio wave measurement system, etc.

Active Publication Date: 2020-05-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, previous studies have neglected the influence of subcarrier clustering and power joint optimization design in OFDM waveforms on the RF stealth performance of integrated radar communication systems, which has certain limitations.

Method used

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  • Subcarrier clustering and power joint distribution method for radar communication integrated system
  • Subcarrier clustering and power joint distribution method for radar communication integrated system
  • Subcarrier clustering and power joint distribution method for radar communication integrated system

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Embodiment Construction

[0071] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0072] Under the general situation that the integrated radar communication system simultaneously tracks a single target and ensures downlink user communication, how to design subcarrier clustering and joint power allocation schemes to minimize the power consumption of the integrated radar communication system. For the integrated multi-carrier radar communication system, according to prior knowledge, the power of the target detection channel and communication channel of the integrated radar communication system is obtained; on this basis, to meet the preset radar target parameter estimation performance mutual information threshold and communication The data transmission rate threshold is the constraint condition, and the optimization goal is to minimize the total transmission power of the integrated radar communication ...

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Abstract

The invention discloses a subcarrier clustering and power joint distribution method for a radar communication integrated system. The method comprises the following steps: determining a target detection and wireless communication model and environment priori knowledge of the radar communication integrated system; respectively constructing a mutual information expression representing target parameter estimation performance and a data transmission rate expression representing communication performance; estimating a performance mutual information threshold [xi]rad and a data transmission rate threshold [xi]com according to preset target parameters, and establishing a subcarrier clustering and power joint distribution model of the radar communication integrated system; solving the subcarrier clustering and power joint distribution model of the radar communication integrated system. The total transmitting power of the radar communication integrated system can be effectively reduced, and theradio frequency stealth performance of the system is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of radar power distribution, in particular to a subcarrier clustering and power joint distribution method of a radar communication integrated system. Background technique [0002] In recent years, the rapid growth of commercial wireless communication services has led to the problem of radio frequency electromagnetic spectrum congestion, and traditional methods have become increasingly difficult to meet the actual needs of radar systems. Under the demand of improving spectrum utilization and reducing hardware cost, integrated radar communication system has attracted extensive attention of researchers from various countries. Compared with other active sensing and wireless technologies, the integrated radar communication system has the advantages of resource sharing and information interaction, and has been widely used in aviation, aerospace, navigation and other industries. [0003] At present, although the e...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/08H04W52/26G06K9/62G01S7/02
CPCH04W72/0453H04W72/0473H04W52/267H04W52/265G01S7/02G06F18/23H04W72/543H04W72/542
Inventor 时晨光王奕杰汪飞李海林周建江夏伟杰孔莹莹
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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