CABSim: A cycle-accurate array processor simulation environment for digital radio astronomy

2010 ◽  
Author(s):  
R P Armstrong ◽  
M E Jones
Keyword(s):  
Radio Astronomy ◽  
Array Processor ◽  
Simulation Environment ◽  
Digital Radio ◽  
Processor Simulation

scholarly journals A Decade of Developing Radio-Astronomy Instrumentation using CASPER Open-Source Technology

2016 ◽  
Vol 05 (04) ◽  
pp. 1641001 ◽  
Author(s):  
Jack Hickish ◽  
Zuhra Abdurashidova ◽  
Zaki Ali ◽  
Kaushal D. Buch ◽  
Sandeep C. Chaudhari ◽  
...  
Keyword(s):  
Signal Processing ◽  
Software Development ◽  
Open Source ◽  
Radio Astronomy ◽  
Scientific Instruments ◽  
Academic Institutions ◽  
Programming Environments ◽  
Digital Radio ◽  
Scientists And Engineers ◽  
Radio Astronomy Instrumentation

The Collaboration for Astronomy Signal Processing and Electronics Research (CASPER) has been working for a decade to reduce the time and cost of designing, building and deploying new digital radio-astronomy instruments. Today, CASPER open-source technology powers over 45 scientific instruments worldwide, and is used by scientists and engineers at dozens of academic institutions. In this paper, we catalog the current offerings of the CASPER collaboration, and instruments past and present built by CASPER users and developers. We describe the ongoing state of software development, as CASPER looks to support a broader range of programming environments and hardware and ensure compatibility with the latest vendor tools.

scholarly journals EMC certification of a digital radio astronomy receiver: A case study

2012 ◽  
Author(s):  
F. Schlagenhaufer ◽  
B. Crosse ◽  
D. Emrich ◽  
S. Tingay ◽  
P. Hall
Keyword(s):  
Radio Astronomy ◽  
Digital Radio

High-speed brightfield 3-D imaging and 3-D image analysis of thick and overlapped cell clusters in cytological preparations

1994 ◽  
Vol 52 ◽  
pp. 218-219
Author(s):  
Robert W. Mackin
Keyword(s):  
Image Analysis ◽  
High Speed ◽  
Three Dimensional ◽  
Image Data ◽  
Ccd Camera ◽  
Objective Lens ◽  
Array Processor ◽  
Vaginal Smears ◽  
Low Contrast ◽  
Computer Controlled

This paper presents two advances towards the automated three-dimensional (3-D) analysis of thick and heavily-overlapped regions in cytological preparations such as cervical/vaginal smears. First, a high speed 3-D brightfield microscope has been developed, allowing the acquisition of image data at speeds approaching 30 optical slices per second. Second, algorithms have been developed to detect and segment nuclei in spite of the extremely high image variability and low contrast typical of such regions. The analysis of such regions is inherently a 3-D problem that cannot be solved reliably with conventional 2-D imaging and image analysis methods.High-Speed 3-D imaging of the specimen is accomplished by moving the specimen axially relative to the objective lens of a standard microscope (Zeiss) at a speed of 30 steps per second, where the stepsize is adjustable from 0.2 - 5μm. The specimen is mounted on a computer-controlled, piezoelectric microstage (Burleigh PZS-100, 68/μm displacement). At each step, an optical slice is acquired using a CCD camera (SONY XC-11/71 IP, Dalsa CA-D1-0256, and CA-D2-0512 have been used) connected to a 4-node array processor system based on the Intel i860 chip.

Phased Arrays for Radio Astronomy, Remote Sensing, and Satellite Communications

2018 ◽  
Author(s):  
Karl F. Warnick ◽  
Rob Maaskant ◽  
Marianna V. Ivashina ◽  
David B. Davidson ◽  
Brian D. Jeffs
Keyword(s):  
Remote Sensing ◽  
Radio Astronomy ◽  
Phased Arrays ◽  
Satellite Communications

Santos: A physics-based digital human simulation environment

2006 ◽  
Author(s):  
Karim Abdel-Malek ◽  
Jasbir Arora ◽  
Jingzhou Yang ◽  
Timothy Marler ◽  
Steve Beck ◽  
...  
Keyword(s):  
Simulation Environment ◽  
Digital Human ◽  
Human Simulation
Sign in / Sign up

Export Citation Format

Share Document