Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Chun-mao Yeh"'
Publikováno v:
Sensors, Vol 15, Iss 9, Pp 23188-23204 (2015)
The hyperbolic frequency-modulated (HFM) waveform has an inherent Doppler-invariant property. It is more conducive than the conventional linear frequency-modulated (LFM) waveform to high speed moving target imaging. In order to apply the HFM waveform
Externí odkaz:
https://doaj.org/article/c351a4809d894456b4ff0fcbfd1be7da
Publikováno v:
Sensors, Vol 16, Iss 1, p 125 (2016)
This study focuses on the rotating target imaging and parameter estimation with narrowband radar echoes, which is essential for radar target recognition. First, a two-dimensional (2D) imaging model with narrowband echoes is established in this paper,
Externí odkaz:
https://doaj.org/article/0ea4ecd11ae84b67b3f1dbaccddd44d5
Publikováno v:
IET Radar, Sonar & Navigation. 13:1242-1248
The micro-motion features induced by space targets provide effective information for target classification and recognition. This study introduces the equivalent rotational velocity (ERV) estimation for precession parameter estimation of the cone-shap
Publikováno v:
IET Radar, Sonar & Navigation. 11:563-569
In inverse synthetic aperture radar (ISAR) imaging, the radar echoes from the rotating parts on a target may contaminate the ISAR image of the main body. The performance of the autofocus algorithms may also be degraded when the interference is too st
Publikováno v:
Journal of Sensors, Vol 2016 (2016)
To present focused ISAR imaging results in the homogenous range and cross-range domain, an integrated scheme is proposed to estimate both the targets equivalent rotational velocity (RV) and rotational center (RC). The RV estimation is improved by rad
Publikováno v:
Journal of Systems Engineering and Electronics. 26:1216-1221
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 11:200-204
In this letter, a modified three-component model-based decomposition method is proposed to solve the problem of instability present in the Freeman decomposition method. We incorporate the similarity parameter and introduce a new constraint that descr
Publikováno v:
2016 CIE International Conference on Radar (RADAR).
The rotating complex target can be regarded as an overlapped multi-components signal in range-slow time domain or frequency-slow time domain. To analysis the movement forms and extract the signature of the target, we should separate the multi-compone
Publikováno v:
Journal of Systems Engineering and Electronics. 23:372-377
The mismatch effect induced by the radial motion of a target is analyzed for linear frequency modulated (LFM) signals. Then, a novel integrated processing scheme is proposed to resolve the delay-Doppler coupling effect in LFM pulse compression. There
Publikováno v:
IEEE Aerospace and Electronic Systems Magazine. 27:14-22
For high resolution imaging applications, ISAR can be viewed as a kind of camera which linearly maps the scattering centers from the physical plane to the RD image plane. Thus, the concept and methods of optical flow in computer vision may be introdu