... On 27mar03 and 17apr03 measurements of tsys were done using lbw to see how the component changed with frequency. ... Fit a 2 az sine wave to each swing: polDif=TsysA-TsysB=A*sin(2*az + phase) + constant. ... The data was also used to measure compression of the system by the various radars and to watch the sun move in the sidelobes of the telescope. ... The strips at za =4.5 and 7 (red,green) have the sbc1b instability. za=12 and 14.5 have sidelobes of the sun. ... Black is 27mar03, red is 17apr03. ...

Radio Interferometry Principles . Radio Interferometry Signal Processing . ... A radio interferometer consists of a pair of directional antennas that are tuned to receive radio emissions from a source in a desired RF band. ... The antennas are pointed at the radio source of interest and are set up to receive the signal and process it into a form suitable for transmission to the correlator. ... In connected element interferometry, the digital signal goes directly to the correlator. ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

... Up: Interrupts and Signals Previous: Sending Signals - kill() . int (*signal(int sig, void (*func)()))() - that is to say the function signal() will call the func functions if the process receives a signal sig . ... signal(SIGINT, SIG_IGN); . ... Finally lets write a program that communicates between child and parent processes using kill() and signal(). fork() creates the child process from the parent. ... The child picks up these signals with signal() and calls appropriate functions. ...

This page provides explanatory text for the dials shown on the Rice Current Solar Wind Conditions and Current Solar Wind Conditions (Dials Only) webpage. These dials use the last good received set of measurements from the Real Time Solar Wind package on the Advanced Composition Explorer (ACE) spacecraft. ... Measured) This quantity is the number of solar wind protons per unit volume as measured by the ACE Solar Wind Electron Proton Alpha Monitor (SWEPAM) . ... It is measured by ACE/SWEPAM. ...

ASKAP Industry briefing Russell Gough October 23, 2009 Outline · Introduction · ASKAP specifications · Analog System specifications · Design constraints · ASKAP prototype PAF receiver system · Design Options · Solution · Key challenges and future directions · Mass production and testing of receiver packages · Component cooling · Integrated receivers (`system-on-a-chip') CSIRO. ... ASKAP Industry briefing - October 23, 2009 Slide 10 ASKAP Analog System architecture with 200 receiver elements CSIRO. ...

SET OF MAGNETIC AND ELECTRIC FIELD DETECTORS EXO-EM . ... 3 components measurements of both magnetic and electric fields; . ... wide frequency range (0 - 10000) Hz; . ... ECHO-EM is intended for measurement of a complete vector and three components of both electric and magnetic fields, and transfers the received data to the block of the processing of the information and also in telemetry. ... digital 0.1-20 Hz; . ... frequency band (0.01- 10000) Hz; . ... digital (500 - 1000) Hz; . ...

... Direct data transmission rate (Mbps) . ... the density of electron fluexs with energies in four bands from 0.04 MeV to 1.7 MeV; . ... sensor (TV, IR) data and heliogeophisical information (HGI) transmission to data receiving and processing centers at a rate of up to 2.56 Mbps; . ... 1.76 GHz - TV- and heliogeophysical information and DCLI's data transmission to data receiving and processing centers; . 7.5 GHz - TV- and heliogeophisical data transmission to data receiving and processing centers; . ...

... Tracking stations will be selected in accordance with the schedule issued daily by the General Operative Control Group (GOCG) in Lavochkin Association with the gaps in operations during spacecraft contact with the control stations (CS). ... Communication frequencies (carrier): high data rate information transmission downlink from the SRT ­ 15.000 GHz; uplink synchronization ­ 7.2075 GHz; downlink synchronization ­ 8.400 GHz. ...

... 314 Astronomical Data Analysis Software and Systems XIII, eds. F. Ochsenbein, M. Allen, & D. Egret (San Francisco: ASP), 720 . ... The Combined Array for Research in Millimeter-wave Astronomy (CARMA) will be the combination of the BIMA, OVRO, and SZA millimeter arrays, at a new high elevation site (7200', 2200 m). ... CARMA's monitoring system (CAM), is designed to collect monitor data periodically from a set of heterogenous systems and organize these monitor points hierarchically. ...

... Archives . ... The PCA and ICA is used for separating mixed components with some assumptions. ... The need of source separation methods in astronomy has led various adaptations of decomposition methods available. ... I rarely come up with a paper which gathered and summarized component separation methods applicable to astronomical data. In that regards, the following paper seems useful to overview methods of reducing dimensionality for astronomers. [arxiv:0805.0269] . ... Chandra Blog . ...

On line simulation in ALMA Software Robert Lucas ALMA Simulation workshop Summary · · · · · · Need for hardware simulation for software testing Requirements for on-line simulation A Shared Simulator Limitations Current capabilities Further wor