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Radio frequency stealth-based distributed MIMO radar jamming waveform design method

A waveform design and radar jamming technology, applied to radio wave measurement systems, instruments, etc., can solve problems such as increasing the transmit power of the jamming system, reducing the radio frequency stealth performance of the jamming system, and increasing the probability of jamming signal interception, so as to improve the radio frequency stealth performance , Excellent radio frequency stealth performance, guaranteed effect of interference performance

Active Publication Date: 2018-05-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

The existing research on active suppressive jamming mainly aims at maximizing the jamming effectiveness, but increasing the transmit power of the jamming system also increases the interception probability of the jamming signal by the passive detection system of the enemy, thus greatly reducing the jamming effect. The radio frequency stealth performance of the system

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  • Radio frequency stealth-based distributed MIMO radar jamming waveform design method
  • Radio frequency stealth-based distributed MIMO radar jamming waveform design method
  • Radio frequency stealth-based distributed MIMO radar jamming waveform design method

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0037]In the present invention, firstly, in the case of electronic countermeasures between the airborne electronic jamming system and the distributed MIMO radar, according to the prior knowledge, the frequency response of the target relative to the distributed MIMO radar, the radar transmission signal and the receiver noise power spectrum are obtained; then, Aiming at minimizing the total transmission power of the airborne electronic jamming system, under the condition of satisfying certain jamming performance, a distributed MIMO radar jamming waveform design model based on radio frequency stealth is established, and the model is solved by Lagrangian multiplier method . Through the iterative ca...

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Abstract

The invention discloses a radio frequency stealth-based distributed MIMO radar jamming waveform design method. In the case of electronic countermeasure between an airborne electronic jamming system and the distributed MIMO radar, according to prior knowledge, the frequency response of a target relative to the distributed MIMO radar, radar transmission signals and a receiver noise power spectrum are acquired; then, with the target of minimizing the total transmission power of the airborne electronic jamming system, a radio frequency stealth-based distributed MIMO radar jamming waveform design model is built, and the model is solved through a Lagrange multiplier method; and iterative calculation is carried out through a dichotomy method, the jamming waveform with the minimum total transmission power of the airborne electronic jamming system is selected as the optimal solution, and the minimum jamming total power meeting constraint conditions can be obtained. The radio frequency stealth-based distributed MIMO radar jamming waveform design method has the beneficial effects that the jamming performance to the distributed MIMO radar system can be ensured, and the radio frequency stealthperformance of the airborne electronic jamming system can also be enhanced effectively.

Description

technical field [0001] The invention relates to a distributed MIMO radar interference waveform design method based on radio frequency stealth, and belongs to the technical field of radar interference waveform design. Background technique [0002] The distributed MIMO radar system is an organic whole composed of multiple transmitting antennas and multiple receiving antennas, which cooperate with each other and are closely related to each other. Functions such as identification and tracking, interference suppression, and fire guidance. Targets in the same field of view can be detected by multiple transmit and receive antennas. In order to prevent the distributed MIMO radar from detecting and tracking the target, it is not enough to only interfere with some radar receivers in the system. All radar receivers must be effectively jammed to cover the penetration target. However, the jamming resources of the airborne electronic jamming system are often limited. In order to achieve...

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Application Information

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IPC IPC(8): G01S7/38
CPCG01S7/38
Inventor 时晨光汪飞李海林周建江
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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