Active microwave holographic security check instrument system

Abstract

The invention discloses an active microwave holographic security check instrument system. The active microwave holographic security check instrument system comprises a transmitting antenna assembly, a frequency synthesizer assembly, a receiving front end, a gating control panel, a processing module, a calibration system, a power supply module and a servo system. Compared with the traditional security check equipment, the active microwave holographic security check instrument system has the advantages that personnel to be subjected to security check do not stagnate, so that security check efficiency is greatly improved; security check invisibility is high; and remote monitoring characteristic can be realized. The active microwave holographic security check instrument system can be mounted on a vehicle, so that an overall structure adopts an antenna array foldable manner, and rotation of a pitch axis and an azimuth axis can be realized while a practical application occasion is considered. Compared with the traditional security check equipment, an arrangement and control mode is more flexible, and effective early warning on a violent and horrific event can be realized. A frequency modulated continuous wave system is adopted, so that transmitting power is greatly reduced, and equipment cost is reduced.

Description

technical field [0001] The invention belongs to the field of imaging technology, in particular to an active microwave holographic security inspection system. Background technique [0002] The current imaging technologies mainly include optical imaging, infrared imaging, and microwave imaging. Optical imaging and infrared imaging have poor penetration, mainly imaging the surface features of objects. Microwave imaging is different. It is penetrating and can penetrate clothing worn by the human body. There are also many ways of microwave imaging, including SAR, ISAR, etc. At present, the imaging distance of airborne SAR can reach about 150km, and the resolution can reach about 0.15m, but the real-time performance is poor, and it cannot image the front. [0003] In recent years, a new system of radar imaging technology has emerged, called MIMO (Multiple input multiple output) radar imaging technology. This technology has the characteristics of multi-beam transmission and mult...

AI Technical Summary

Problems solved by technology

The actual radar system has not been reported in China

Images