Radar high-robustness low-sidelobe waveform design method

A waveform design and low sidelobe technology, applied in the field of radar detection, can solve the problems of low stability, poor suppression of range sidelobe performance, and poor anti-intercept performance, so as to facilitate engineering design and suppress strong autocorrelation distance sidelobe , High stability effect

Active Publication Date: 2021-11-05
HARBIN INST OF TECH AT WEIHAI
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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a radar high robustness and low sidelobe waveform design method to solve the low st...

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[0075] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Furthermore, it should be understood that development work, while potentially complex and time-consuming, would nevertheless be a routine undertaking for those skilled in the art having the benefit of the teachings herein. Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the so...

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Abstract

The invention discloses a radar high-robustness low-sidelobe waveform design method, belongs to the technical field of radar communication, and aims to solve the problems that an existing radar waveform design method is low in stability, poor in interception resistance and poor in self-correlation distance sidelobe suppression performance. The method is technically characterized by integrating chaotic waveform initialization, a waveform index evaluation value and a resampling thought into constant modulus waveform sequence iterative optimization by adopting a particle distributed projection thought, and designing a constant modulus phase coding waveform meeting engineering requirements. Compared with an existing waveform design method, the method avoids the influence of a non-convex local region stagnation effect on waveform design, and has higher capability of suppressing sidelobe interference of a specific interval distance. By applying the method provided by the invention, the waveform design robustness is stronger, the anti-interception performance is better, the related sidelobe is lower, and a conventional radar, an MIMO radar, a cognitive radar and the like can have better detection performance.

Description

technical field [0001] The invention relates to the technical field of radar detection, in particular to a radar waveform design method with high robustness and low sidelobe. Background technique [0002] In recent years, unmanned aerial vehicle operations have shown great combat advantages in conflicts in the Middle East and Central Asia. The level of waveform agility of land-based radar has become an important means to improve radar combat performance and battlefield survivability. Signal interception, forwarding jamming, and masking jamming are the most common forms in the field of radar electronic countermeasures. In order to make full use of the transmitter power and maximize the radar detection distance, the constant modulus of the waveform has become a necessary condition for practical engineering. However, traditional radars are limited by the form of transmitted signals, have poor anti-intercept performance, and have limited ability to suppress and block interfere...

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Application Information

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IPC IPC(8): G01S7/36
CPCG01S7/36Y02T10/40
Inventor 冯翔赵宜楠李风从赵占锋周志权
Owner HARBIN INST OF TECH AT WEIHAI
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