Fast and Accurate Analysis of Reflector Antennas With Phased Array Feeds Including Multiple Reflections Between Feed and Reflector

2014 ◽  
Vol 62 (7) ◽  
pp. 3450-3462 ◽  
Author(s):  
Oleg A. Iupikov ◽  
Rob Maaskant ◽  
Marianna V. Ivashina ◽  
Andre Young ◽  
Per-Simon Kildal
Keyword(s):  
Phased Array ◽  
Multiple Reflections ◽  
Reflector Antennas ◽  
Accurate Analysis ◽  
Phased Array Feeds

scholarly journals PAFINDER – Searching for FRBs and pulsars using Phased Array Feeds

2017 ◽  
Vol 13 (S337) ◽  
pp. 370-371
Author(s):  
Mateusz Malenta ◽  
Ewan Barr ◽  
Aaron Chippendale ◽  
Xinping Deng ◽  
Daniel George ◽  
...  
Keyword(s):  
Real Time ◽  
Radio Telescope ◽  
Phased Array ◽  
Single Pulse ◽  
Radio Bursts ◽  
Pulse Detection ◽  
Phased Array Feeds

AbstractThe challenges of detecting and localising Fast Radio Bursts in real time can be met with the use of Phased Array Feeds. One such system, capable of creating up to 36 simultaneous beams, is currently being commissioned at the Effelsberg radio telescope in Germany following testing at the 64 m Parkes radio telescope. The PAFINDER (Phased Array Feed FRB Finder) pipeline will be used with this receiver to enable real–time single–pulse detection and localisation.

A Study of Phased Array Ultrasonic Velocity Profile Monitor for Flow Rate Measurement

2013 ◽  
Author(s):  
Takuya Fukumoto ◽  
Keisuke Tsukada ◽  
Tomonori Ihara ◽  
Nobuyoshi Tsuzuki ◽  
Hiroshige Kikura
Keyword(s):  
Velocity Profile ◽  
Ultrasonic Velocity ◽  
Flow Rate ◽  
Measurement System ◽  
Phased Array ◽  
Profile Measurement ◽  
Multiple Reflections ◽  
Horizontal Pipe ◽  
Array Sensor ◽  
Velocity Profile Measurement

A new ultrasonic velocity profile measurement system with a phased array sensor was developed for accurate flow rate measurements. This measurement system employs phased array technique to reduce noise from multiple reflections which occurs in a wedge. However, phased array technique has some difficulties — one of them is about grading lobes. Thus, the array sensor was designed to reduce the grading lobes using simple calculations. Performance of the manufactured array sensor was evaluated by experimental measurements of sound pressure distribution emitted from the array sensor, and optimal parameters to control the array sensor were obtained. Hardware and software of the ultrasonic velocity profile measurement system with a phased array sensor were also developed. The software is based on ultrasonic Doppler method. Velocity profiles of horizontal pipe flow were measured using the developed system, and the availability of the system applying a phased array sensor was confirmed.

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