Detection method of aircraft with low radar scattering cross-sectional area

Abstract

The invention belongs to the technical field of radar detection, and discloses a detection method of an aircraft with a low radar scattering cross-sectional area. The method comprises the steps of 1,wave position arrangement and illumination; 2, ground clutter analysis and processing; 3, clutter cancellation processing; 4, profile detection of an invisible target. After the third step is executed, an output result of joint detection needs to be initially judged, and whether or not the profile of the aircraft with the low radar scattering cross-sectional area is detected is judged. According to the method, the aircraft with the low radar scattering cross-sectional area is utilized for achieving an attenuation effect on electromagnetic waves, and a traditional mode that radar target reflected wave energy is taken as a detection basis is changed; the excellent invisibility of the aircraft with the low radar scattering cross-sectional area is utilized, a shadow detection technology in optical image processing is introduced into the radar detection processing method of the aircraft with the low radar scattering cross-sectional area, the engineering applicability is high, and the methodhas high application value.

Description

technical field [0001] The invention belongs to the technical field of radar detection, and relates to a detection method for detecting aircraft with a low radar scattering cross-sectional area. Background technique [0002] The low radar cross-sectional area aircraft adopts a very unique shape design and is coated with high-performance radar absorbing materials, so that only a small part of the energy of the electromagnetic waves irradiated by the radar on the aircraft is reflected back to the radar, and the echo energy received by the radar is very high. Faint and hard to detect. Low radar cross section aircraft pose a threat to homeland air defense security. Radar is the most effective and reliable means of detecting air targets and can work around the clock. The current detection method for aircraft with low radar cross-sectional area is mainly meter-wave radar detection. [0003] Meter wave radar detection technology uses the wavelength of the electromagnetic wave its...

AI Technical Summary

Problems solved by technology

When an aircraft with a low radar cross-sectional area enters or passes through the radar beam irradiation area, it will form a radio wave attenuation phenomenon or a shielding effect, which will absorb a part of the irradiation energy, and may also absorb a part of the ground reflection energy, resulting in clutter reaching the radar power reduction

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