Related Experiment Video
Updated: Feb 15, 2026

Terahertz Imaging and Characterization Protocol for Freshly Excised Breast Cancer Tumors
Published on: April 5, 2020
Envelope Correction of Micro-Motion Targets in the Terahertz ISAR Imaging
Qi Yang1, Bin Deng2, Hongqiang Wang3
1College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China. yangqi_nudt@163.com.
Abstract:
Motion compensation is a crucial step to inverse synthetic aperture radar imaging, and envelope correction is the foundation of motion compensation. Research on envelope correction based on the small-angle imaging model has matured after years of development. However, the small-angle imaging model is not applicable to parameter estimation and imaging of micro-motion targets. According to the characteristics of the micro-motion targets and the superiorities of terahertz imaging radar, an envelope correction method for micro-motion targets in the terahertz region was proposed in this paper, including the jump error correction based on periodic correction and drift error compensation based on nonlinear fitting. Then a 330 GHz imaging radar and two experiments on corner reflectors and a warhead model were introduced. The validity of the method was verified by the experimental results, and the performance of the method was proved by the inverse Radon transform of the range profile sequences.
More Related Videos
Related Concept Videos
Distance Corrections
Outer Layers of the Cell Envelope
Power Factor Correction
Equation of Motion: General Plane motion
Moreover, the body's center of mass experiences a rotational effect as a result of these couple moments. This rotation can be articulated as the...
NMR Spectrometers: Resolution and Error Correction
Absolute Motion Analysis- General Plane Motion
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...

