High-fidelity missile-borne radar echo simulation method

A radar echo simulation and echo simulation technology, which is applied in radio wave measurement systems, instruments, etc., can solve the problems of difficult engineering applications and the echo fidelity is lower than expected, and achieves improved fidelity and good coherence. Effect

Pending Publication Date: 2022-05-06
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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Problems solved by technology

[0003] However, in the hardware-in-the-loop simulation test stage of the radar development process, due to the limitations of hardware platform computing accuracy, hardware resource scale, and real-time echo simulation, the design of the echo simulator usually simplifies the design of the radar echo simulation algorithm , resulting in echoes with less fidelity than expected
In contrast, the simulation algorithm design based on radar theory derivation develops relatively rapidly and is far ahead of the hardware implementation of radar echo simulation. However, due to the complexity of the algorithm, it is difficult to apply engineering, especially in complex electromagnetic environments. and high-speed motion scenes

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  • High-fidelity missile-borne radar echo simulation method

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] Such as figure 1 As shown, a high-fidelity ballistic radar echo simulation method based on the complex scene simulation model and projectile motion model, the input conditions are ballistic data, radar operating parameters, antenna information, environmental information, target information, radar emission signals, etc. , in order to improve the fidelity of echo simulation, the echo simulation algorithm takes into account the influence of factors such as the radar working process, the attitude of the projectile, the change of antenna illumination and the antenna pattern on the echo. During the echo simulation, first establish the geometric model of the scene according to the test requirements, calculate the beam irradiation scene range according to parameters such as the radar carrier position, attitude angle and antenna beam angle, and calculate the co...

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Abstract

The invention discloses a high-fidelity missile-borne radar echo simulation method, and the method comprises the steps: defining a universal characteristic quantity through a characteristic model of a complex target and the change rule of the motion attitude and transmission signals of a missile-borne radar in different scenes, and generating a pulse characteristic index file in advance; and continuous or segmented interception is controlled to generate high-fidelity radar echo signals. The high-fidelity missile-borne radar echo simulation method is suitable for high-fidelity missile-borne radar echo simulation in a complex electromagnetic environment and a high-speed motion scene.

Description

technical field [0001] The invention relates to the simulation of radar echo signals, in particular to a high-fidelity missile-borne radar echo simulation method. Background technique [0002] Generally, modern radars have high-resolution, long-distance, high-precision capabilities, and can achieve multi-target detection and tracking, anti-jamming, clutter and other capabilities. As the functions realized by the radar system become more and more complex and the components become larger and larger, the requirements for the simulation of radar echoes are also constantly increasing in the development and testing of the radar system. In order to verify the performance of the radar machine, hardware-in-the-loop simulation debugging and field test tests are usually used. If the field test scheme is adopted in the early stage of commissioning, it will consume a lot of manpower and financial resources, and many uncontrollable field environments will prolong the commissioning cycle,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/4052
Inventor 陈香国毕锐锐王泰林
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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