A Modified Digital Predistortion Method for Phased Array Transmitters with Multi-Channel Time Delay

2018 ◽  
Author(s):  
Qing Luo ◽  
Chao Yu ◽  
Xiao-Wei Zhu
Keyword(s):  
Time Delay ◽  
Phased Array ◽  
Digital Predistortion

scholarly journals Digital Predistortion of Phased-Array Transmitter With Shared Feedback and Far-Field Calibration

2021 ◽  
Vol 69 (1) ◽  
pp. 1000-1015
Author(s):  
Nuutti Tervo ◽  
Bilal Khan ◽  
Olli Kursu ◽  
Janne P. Aikio ◽  
Markku Jokinen ◽  
...  
Keyword(s):  
Phased Array ◽  
Far Field ◽  
Digital Predistortion ◽  
Field Calibration

A flexible continuous beamformer with time delay for an optical-controlled phased-array antenna

2003 ◽  
Vol 36 (3) ◽  
pp. 187-190 ◽  
Author(s):  
Jianliang Yang ◽  
Swee Chuan Tjin ◽  
Yunqi Liu ◽  
Nam Quoc Ngo
Keyword(s):  
Time Delay ◽  
Phased Array ◽  
Array Antenna ◽  
Phased Array Antenna

Research on Parallel PZT Phased Array Based Structural Health Monitoring in CFPR

2013 ◽  
Vol 753-755 ◽  
pp. 2343-2346
Author(s):  
Ya Jie Sun ◽  
Yong Hong Zhang ◽  
Hui Qiang Tang ◽  
Cheng Shan Qian ◽  
Shen Fang Yuan
Keyword(s):  
Time Delay ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Lamb Wave ◽  
Phased Array ◽  
Signal Amplitude ◽  
Gray Scale ◽  
One Dimensional ◽  
Structural Health ◽  
Damage Location

Phased array theroy can controll the Lamb wave beem steering in certain range by adding the time delay to the signals. Phased array theory is used to identify the damge in the structure. One dimensional PZT array is restricted in monitoring distance. Two parellel PZT sensors arrays are utilized to monitor the CFPR structure to extend the monitoring distance and to improve the precision of the damage locatilization. The experiment is done on the CFPR structure by using two parellel PZT arrays to detect the damage in the structure. The results of the experiment is shown on the mapped image. Gray-scale in the mapped image from dark to light corresponds to the signal amplitude from low to high. The highlight of the mapped image is the damage location in the structure. The monitoring results in the CFPR structure by two parellel PZT arrays is accurate and identical.

Sign in / Sign up

Export Citation Format

Share Document