Millimeter-Wave Holographic Imaging System with Rotating Antenna Arrays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current millimeter-wave active three-dimensional holographic imaging systems for human-body security inspection have complex structures and high implementation costs, with low image resolution due to independent scanning and information transmission by multiple units.
Innovation Solution
A security inspection system using a single millimeter-wave transceiving module with multiple switch antenna arrays that rotate in the same direction, employing a parallel-image processing module to synthesize three-dimensional holographic images from echo signals, reducing system complexity and cost while enhancing image resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple scan units are used to reduce scan time, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple antenna arrays into a single integrated array structure that performs both transmitting and receiving functions. Instead of using separate scan units for transmission and reception, the invention merges these functions into one unified antenna array system, thereby reducing device complexity while maintaining high scan speed through parallel signal processing channels.
2Productivity
If multiple scan units operate independently, then productivity is improved, but measurement precision deteriorates
Solution Approach 1:
The patent merges the scanning operations of multiple antenna arrays into a coordinated single-array system. By combining the transmitting and receiving antenna arrays into one integrated structure with synchronized operation, the system achieves both high productivity through parallel processing and high measurement precision through unified spatial sampling and coherent signal integration.
Solution Approach 2:
The invention implements feedback mechanisms where the receiving antenna array continuously monitors echo signals and feeds this information back to the transmitting array for real-time signal processing and image reconstruction. This feedback loop enables precise measurement by continuously optimizing the transmitted signals based on received echoes, thereby maintaining high image resolution during rapid scanning.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves a simpler structure, lower costs, and higher image resolution through denser echo signal synthesis, improving the clarity of three-dimensional holographic images compared to existing systems.
Implementation Method 1
a transmitter will transmit a millimeter-wave signal of a high stability, then a receiver receives echo signals reflected back from the object
Implementation Method 2
a receiver receives echo signals reflected back from the object and processes the echo signals with a highly related reference signal to extract amplitude and phase information
Data Source
AI summary
The present disclosure relates to a security inspection system and method using the three-dimensional holographic imaging technology. The system comprises: a body frame; a millimeter-wave transceiving module, disposed on the body frame; and at least two millimeter-wave switch antenna arrays, connected with the millimeter-wave transceiving module; the number of the millimeter-wave switch antenna arrays being the same as that of the scan areas; a scan driving device, configured to drive the at least two millimeter-wave switch antenna arrays to rotate along the same direction; a control device, configured to control the scan driving device to generate a rotation angle signal; and a parallel-image processing module, configured to synthesize a three-dimensional holographic image of an under-test object according to echo signals collected by the millimeter-wave transceiving module and spatial position information of the echo signals. The present disclosure simplifies the system structure and improves the imaging resolution.