AAIR is a project developped for MFAA consortium “Middle Frequency Aperture Array”, part of SKA Advanced Instrumentation Program. AAIR aims the miniaturization and integration inside chips, or ASIC “Application Specific Integrated Circuit”, radiofrequency features including
fast digitization. With AAIR project, cheaper cost is then highlight and power consumption is naturally brought in the...
Cryogenic low noise amplifiers (LNAs) are in high demand for highly sensitive detection in radio astronomy and quantum technology research and development. This presentation describes the design and testing of an extremely low noise amplifier based on 3-stage GaAs HEMTs and a microwave integrated circuit. Utilizing computer-aided design techniques, lumped passive components were adapted to...
As observed by computer scientists in SKA science data processor (SDP) consortium, the designed capability of scientific data processing is significantly reduced in the current design of SDP by focusing only on high-priority scientific observation tasks, and reducing the number of effective baselines of the antenna. SDP consortium reduced the sustainable requirement of imaging computation for...
For radio telescope array application, the precise time and frequency reference largely determine the quality of the observation. Here, we demonstrate an integrated dissemination system which can achieve the highly-stable frequency dissemination, time synchronization and data transfer simultaneously over a single optical fiber link. With this system, the time and frequency reference signal in...
