Autofocusing-spectral 2-D ISAR image reconstruction from linear frequency modulated signal

2003 ◽  
Author(s):  
A. Lazarov ◽  
C. Minchev
Keyword(s):  
Image Reconstruction ◽  
Linear Frequency ◽  
Linear Frequency Modulated Signal

scholarly journals Wigner-Ville Distribution Associated with the Linear Canonical Transform

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Rui-Feng Bai ◽  
Bing-Zhao Li ◽  
Qi-Yuan Cheng
Keyword(s):  
Signal Processing ◽  
Signal Detection ◽  
Transform Domain ◽  
Linear Canonical Transform ◽  
Nonstationary Signal ◽  
Linear Frequency ◽  
Simulation Results ◽  
Definition Of ◽  
Linear Frequency Modulated Signal

The linear canonical transform is shown to be one of the most powerful tools for nonstationary signal processing. Based on the properties of the linear canonical transform and the classical Wigner-Ville transform, this paper investigates the Wigner-Ville distribution in the linear canonical transform domain. Firstly, unlike the classical Wigner-Ville transform, a new definition of Wigner-Ville distribution associated with the linear canonical transform is given. Then, the main properties of the newly defined Wigner-Ville transform are investigated in detail. Finally, the applications of the newly defined Wigner-Ville transform in the linear-frequency-modulated signal detection are proposed, and the simulation results are also given to verify the derived theory.

A Sonic Distance Measurement Approach Using Linear Frequency Modulated Signal

2013 ◽  
Vol 427-429 ◽  
pp. 2018-2021
Author(s):  
Ting Lan ◽  
Jian Jun Xie ◽  
Yang Bo Wu
Keyword(s):  
Measurement System ◽  
Measurement Range ◽  
Distance Measurement ◽  
Chirp Signal ◽  
Echo Signal ◽  
Linear Frequency ◽  
Alternative Approach ◽  
Correlation Result ◽  
Linear Frequency Modulated Signal ◽  
Measurement Approach

This paper deals with the development of an alternative approach for sonic distance measurement. A linear frequency modulated signal (chirp signal) is regarded as a template signal. The sonic distance measurement system transmits the template signal and receives the echo signal, then calculate the correlation between template and echo signal. The time of flight is determined according to the position of the peak in the correlation result, then the distance is calculated. The major advantage of this approach is that it can detect weak echo signals among noises and increase measurement range significantly.

Linear frequency modulated signal induced aperiodic resonance

2020 ◽  
Vol 95 (6) ◽  
pp. 065213
Author(s):  
Yuwen Zhai ◽  
Jianhua Yang ◽  
Shuai Zhang ◽  
Houguang Liu
Keyword(s):  
Linear Frequency ◽  
Linear Frequency Modulated Signal

A Simplified Technique for Distance and Velocity Measurements of Multiple Moving Objects Using a Linear Frequency Modulated Signal

2016 ◽  
Vol 16 (15) ◽  
pp. 5912-5920 ◽  
Author(s):  
Tae-Yun Lee ◽  
Se-Yeon Jeon ◽  
Junghwan Han ◽  
Vladimir Skvortsov ◽  
Konstantin Nikitin ◽  
...  
Keyword(s):  
Moving Objects ◽  
Velocity Measurements ◽  
Linear Frequency ◽  
Linear Frequency Modulated Signal
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