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An Optimal Design Method for Transmitting Signals of Distributed MIMO Radar Based on Radio Frequency Stealth

A transmission signal, radio frequency stealth technology, applied in the field of distributed multi-input multi-output radar transmission signal optimization design, can solve the problem of reducing the total transmission power

Active Publication Date: 2021-05-11
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0006] Purpose of the invention: Aiming at the simultaneous existence of environmental clutter and colored noise in practical applications, a distributed MIMO radar transmission signal based on radio frequency stealth is proposed, which reduces the total transmission power of the distributed MIMO radar system and improves its radio frequency stealth performance Optimal Design Method

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  • An Optimal Design Method for Transmitting Signals of Distributed MIMO Radar Based on Radio Frequency Stealth
  • An Optimal Design Method for Transmitting Signals of Distributed MIMO Radar Based on Radio Frequency Stealth
  • An Optimal Design Method for Transmitting Signals of Distributed MIMO Radar Based on Radio Frequency Stealth

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[0054] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0055] The present invention proposes a distributed MIMO radar transmission signal optimization design method based on radio frequency stealth. The main task accomplished by this method is to obtain target , the environmental clutter reflection matrix and the eigenvalues ​​of the colored noise matrix, with the goal of minimizing the total power of the transmitted signal of the distributed MIMO radar system, under the condition of satisfying a certain target tracking performance, the transmission of the distributed MIMO radar system The signal is adaptively optimized and designed.

[0056] Such as figure 1 Shown, a kind of distributed MIMO radar transmitting signal optimization design method based on radio frequency stealth of the present invention may further comprise the steps:

[0057] (1) Determine the reflection matrix...

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Abstract

The invention discloses a distributed MIMO radar transmission signal optimization design method based on radio frequency stealth, which includes obtaining the reflection matrix H of the target relative to the radar system, the reflection matrix C of the environmental clutter relative to the radar system, and the colored noise at the radar receiver. Matrix N; establish a distributed MIMO radar signal optimization design model based on radio frequency stealth; determine the optimal Lagrangian multiplier to be substituted into the KKT necessary condition to obtain the optimal transmission signal of the distributed MIMO radar to obtain a distributed MIMO with radio frequency stealth performance Radar transmits signal. The radio frequency stealth-based distributed MIMO radar transmission signal optimization design method of the present invention, starting from practical applications, reduces the total transmission power of the distributed MIMO radar system and improves its radio frequency stealth performance.

Description

technical field [0001] The present invention relates to radar signal optimization design technology, in particular to a distributed multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO) radar transmission signal optimization design method based on radio frequency stealth. Background technique [0002] Distributed MIMO radar system is a new active detection technology, which has aroused great interest of many scholars and scientific research institutions at home and abroad in recent years. In the distributed MIMO radar system, the distance between each array element is large, and the target can be observed from different angles, and a large space diversity gain can be obtained, which can effectively reduce the radar cross section (Radar Cross Section, RCS) scintillation of the target on the system detection performance and tracking. It has the advantages of higher spatial resolution, better target detection performance and more flexible resource management des...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/282
CPCG01S7/282
Inventor 时晨光汪飞李海林周建江夏伟杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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