Reconfigurable and single-shot chirped microwave pulse compression using a time-spectrum convolution system

2011 ◽  
Author(s):  
Ming Li ◽  
Antonio Malacarne ◽  
Sophie LaRochelle ◽  
Jianping Yao ◽  
Jose Azana
Keyword(s):  
Microwave Pulse ◽  
Pulse Compression ◽  
Time Spectrum ◽  
Single Shot

scholarly journals High Power Microwave Pulse Compression Using a Helical Slow-Wave Structure

2012 ◽  
Vol 365 ◽  
pp. 012056 ◽  
Author(s):  
Vasudha Rajput ◽  
N Parmar ◽  
K S Bhat ◽  
K P Maheswari ◽  
Y Choyal
Keyword(s):  
Slow Wave ◽  
High Power ◽  
Microwave Pulse ◽  
Pulse Compression ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
High Power Microwave ◽  
Power Microwave

High power microwave pulse compression of energy doublers

2010 ◽  
Vol 22 (4) ◽  
pp. 849-852
Author(s):  
沈旭明 Shen Xuming ◽  
张鹏 Zhang Peng ◽  
和天慧 He Tianhui
Keyword(s):  
High Power ◽  
Microwave Pulse ◽  
Pulse Compression ◽  
High Power Microwave ◽  
Power Microwave

Prepulse suppression in microwave pulse‐compression cavities

1986 ◽  
Vol 57 (10) ◽  
pp. 2475-2480 ◽  
Author(s):  
R. A. Alvarez ◽  
D. P. Byrne ◽  
R. M. Johnson
Keyword(s):  
Microwave Pulse ◽  
Pulse Compression

scholarly journals Multiclass Radio Frequency Interference Detection and Suppression for SAR Based on the Single Shot MultiBox Detector

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 4034 ◽  
Author(s):  
Junfei Yu ◽  
Jingwen Li ◽  
Bing Sun ◽  
Jie Chen ◽  
Chunsheng Li
Keyword(s):  
Radio Frequency ◽  
Pulse Compression ◽  
Radio Frequency Interference ◽  
Single Shot ◽  
Separation Problem ◽  
Underdetermined Blind Source Separation ◽  
Time Frequency ◽  
Interference Signals ◽  
Novel Method ◽  
Short Time

Radio frequency interference (RFI) is known to jam synthetic aperture radar (SAR) measurements, severely degrading the SAR imaging quality. The suppression of RFI in SAR echo signals is usually an underdetermined blind source separation problem. In this paper, we propose a novel method for multiclass RFI detection and suppression based on the single shot multibox detector (SSD). First, an echo-interference dataset is established by randomly combining the target signal with various types of RFI in a simulation, and the time–frequency form of the dataset is obtained by utilizing the short-time Fourier transform (STFT). Next, the time–frequency dataset acts as input data to train the SSD and obtain a network that is capable of detecting, identifying and estimating the interference. Finally, all of the interference signals are exactly reconstructed based on the prediction results of the SSD and mitigated by an adaptive filter. The proposed method can effectively increase the signal-to-interference-noise ratio (SINR) of RFI-contaminated SAR echoes and improve the peak sidelobe ratio (PSLR) after pulse compression. The simulated experimental results validate the effectiveness of the proposed method.

Microwave pulse compression using diffraction gratings

1998 ◽  
Vol 43 (2) ◽  
pp. 209-215 ◽  
Author(s):  
S. N. Vlasov ◽  
N. G. Kazakova ◽  
E. V. Koposova
Keyword(s):  
Microwave Pulse ◽  
Pulse Compression ◽  
Diffraction Gratings

Single-shot photonic time-intensity integration based on a time-spectrum convolution system

2012 ◽  
Vol 37 (8) ◽  
pp. 1355 ◽  
Author(s):  
Antonio Malacarne ◽  
Reza Ashrafi ◽  
Ming Li ◽  
Sophie LaRochelle ◽  
Jianping Yao ◽  
...  
Keyword(s):  
Time Spectrum ◽  
Single Shot
Sign in / Sign up

Export Citation Format

Share Document