Imaging of a Moving Target With Rotating Parts Based on the Hough Transform

• Published in: IEEE transactions on geoscience and remote sensing Vol. 46; no. 1; pp. 291 - 299
• Main Authors: Zhang, Qun, Yeo, Tat Soon, Tan, Hwee Siang, Luo, Ying
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.01.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied geophysics; Associate members; Computer simulation; Data mining; Dynamic range; Earth sciences; Earth, ocean, space; Exact sciences and technology; Frequency modulation; Heat treatment; Hough transform (HT); Hough transforms; Image processing; Imaging; Interference; Internal geophysics; micro-Doppler; Moving targets; Robust stability; Rotating; rotating parts; Sidebands; Signal generators; Spectrogram; Straight lines; micro-Doppler; rotating parts; moving targets; spectrogram; Hough transform (HT); image processing; computer programs; simulation; rotation; remote sensing; interferences; frequency; separation; standard samples; transformations; movement
• ISSN: 0196-2892; 1558-0644
• DOI: 10.1109/TGRS.2007.907105

The rotation of structures in a target introduces additional frequency modulations on the returned signals and also generates sidebands about the center Doppler frequency of the target. In other words, the body image will be contaminated due to the interference from the rotating parts. In this paper, an imaging method for moving targets with rotating parts is presented. The method is simple to implement and is based on the Hough transform (HT), which is widely used in image processing. Using the standard HT and an extended HT, we put forward a separation method by detecting the straight lines and the sinusoids on the spectrogram, respectively. A computer simulation is given to illustrate the effectiveness of the proposed method.