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Power Allocation Method of Distributed Networking Radar Based on LPI under Spectrum Coexistence

A distribution method and networked radar technology, applied in advanced technology, climate sustainability, sustainable communication technology, etc., to achieve the effects of controlling interference, improving radio frequency stealth performance, and meeting target parameter estimation performance

Active Publication Date: 2021-06-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, there is no LPI-based distributed networked radar power allocation method under spectrum coexistence in the prior art

Method used

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  • Power Allocation Method of Distributed Networking Radar Based on LPI under Spectrum Coexistence
  • Power Allocation Method of Distributed Networking Radar Based on LPI under Spectrum Coexistence
  • Power Allocation Method of Distributed Networking Radar Based on LPI under Spectrum Coexistence

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Embodiment Construction

[0033] The technical solution of the present invention will be further introduced below in combination with specific embodiments.

[0034] This specific implementation mode discloses a power allocation method for distributed networking radar based on LPI under spectrum coexistence. The distributed MIMO radar has M T transmit antennas and M R receiving antennas, and the spectrum of the distributed MIMO radar and the transmission signal of the communication system coexist. Such as figure 1 As shown, the power allocation method includes the following steps:

[0035] S1: Acquire prior knowledge;

[0036] S2: Estimate the performance mutual information threshold ε according to the given target parameters, and establish a mathematical model of distributed MIMO radar power allocation based on LPI under the spectrum coexistence environment;

[0037] S3: By calculating the distributed MIMO radar power allocation mathematical model, the optimal radiation power allocation of the dist...

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Abstract

The invention discloses a distributed network radar power allocation method based on LPI under the coexistence of frequency spectrum. The distributed MIMO radar has M T transmit antennas and M R receiving antennas, and the distributed MIMO radar and the communication system transmit signal spectrum coexist; the power allocation method includes the following steps: S1: obtain prior knowledge; S2: estimate the performance mutual information threshold ε according to the given target parameters, and establish the spectrum coexistence environment Next, the distributed MIMO radar power allocation mathematical model based on LPI; S3: By calculating the distributed MIMO radar power allocation mathematical model, the optimal radiation power allocation of the distributed MIMO radar system is obtained. The invention can improve the radio frequency stealth performance.

Description

technical field [0001] The present invention relates to the technical field of radar power optimal allocation, in particular to an LPI-based distributed networking radar power allocation method under spectrum coexistence. Background technique [0002] Spectrum congestion is a growing problem. Due to increasing configurations and bandwidth in wireless communications, as well as the use of network centric and unmanned systems, the spectrum is increasingly constrained by operational capabilities, and the radar and communications spectrum requires greater flexibility. In this context, the coexistence of radar and communication spectrum aims to improve the ability of radar and communication to share spectrum, so that radar and communication systems can achieve a win-win situation. [0003] However, there is no LPI-based distributed networked radar power allocation method under spectrum coexistence in the prior art. Contents of the invention [0004] Purpose of the invention: ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413H04B7/0426
CPCY02D30/70
Inventor 时晨光仇伟汪飞李海林周建江夏伟杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS