scholarly journals Developing a Focal Plane Array at the GBT for 21 cm Astronomy

2012 ◽  
Author(s):  
Christopher Anderson
Keyword(s):  
Data Collection ◽  
West Virginia ◽  
Focal Plane ◽  
Focal Plane Array ◽  
Valuable Resource ◽  
Frequency Range ◽  
Intensity Mapping ◽  
Receiver Array ◽  
Green Bank Telescope ◽  
Single Receiver

Progress has been made on the design of a 9 receiver array in the 700 to 945 MHz range to replace the single receiver in that frequency range currently in use at the Green Bank Telescope (GBT) in West Virginia. The new array will increase the rate of data collection ~9x in ongoing 21 cm intensity mapping, and it should also be a valuable resource for other users of the GBT. The following paper describes the science of 21 cm intensity mapping and the work that has been done in designing the receiver for the focal plane array. 

scholarly journals A High-Multi Target Resolution Focal Plane Array-Based Laser Detection and Ranging Sensor

Sensors ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 1210 ◽  
Author(s):  
Hyeon-June Kim ◽  
Eun-Gyu Lee ◽  
Choul-Young Kim
Keyword(s):  
Digital Signal Processor ◽  
Focal Plane ◽  
Digital Signal ◽  
Focal Plane Array ◽  
Cmos Process ◽  
Detection Scheme ◽  
Laser Detection ◽  
Noise Current ◽  
Laser Detection And Ranging ◽  
Single Receiver

This paper introduces a digital-assisted multiple echo detection scheme, which utilizes the waste time of the full serial data readout period in a focal plane array (FPA)-based laser detection and ranging (LADAR) receiver. With the support of an external digital signal processor (DSP) and additional analog memory inserted into the receiver, the proposed readout scheme can effectively enhance multi-target resolution (MTR) three times higher than the conventional FPA-based LADAR, while maintaining low power consumption and a small area. A prototype chip was fabricated in a 0.18-μm CMOS process with an 8 × 8 FPA configuration, where each single receiver pixel occupied an area of 100 μm × 100 μm. The single receiver achieved an MTR of 20 ns with 7.47 mW power dissipation, an input referred noise current of 4.48 pA/√Hz with a bandwidth 530 MHz, a minimum detectable signal (MDS) of 340 nA, a maximum walk error of 2.2 ns, and a maximum non-linearity of 0.05% among the captured multiple echo images.

MUSTANG 2: A Large Focal Plane Array for the 100 m Green Bank Telescope

2014 ◽  
Vol 176 (5-6) ◽  
pp. 808-814 ◽  
Author(s):  
S. R. Dicker ◽  
P. A. R. Ade ◽  
J. Aguirre ◽  
J. A. Brevik ◽  
H. M. Cho ◽  
...  
Keyword(s):  
Focal Plane ◽  
Focal Plane Array ◽  
Green Bank Telescope

Dual Band MWIR/LWIR Focal Plane Array Test Results

1999 ◽  
Author(s):  
A. Goldberg ◽  
S. Wang ◽  
M. Sundaram ◽  
P. Uppal ◽  
M. Winn ◽  
...  
Keyword(s):  
Focal Plane ◽  
Focal Plane Array ◽  
Dual Band ◽  
Test Results

Dual-Band Imaging of Military Targets Using a QWIP Focal Plane Array

2001 ◽  
Author(s):  
A. Goldberg ◽  
T. Fischer ◽  
S. Kennerly ◽  
S. Wang ◽  
M. Sundaram
Keyword(s):  
Focal Plane ◽  
Focal Plane Array ◽  
Dual Band
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