The computed band passes. ... The interim correlator input is filtered by 8 analog filters (50 Mhz wide at the 260 Mhz IF... one for each sub correlator). ... For bandwidths of 25 Mhz and below the real data stream is digitally down converted to complex samples I, Q streams. ... The Top figure is the halfband filter bandpass computed from the filter coefficients. ... The computed filter has aliased power, extra IQ filtering, and two applications of the filter on the resulting real bandpass. ...

... omichain (omichain-1.50) [xmmsas_20070708_1801-7.1.0] . ... The omichain then cycles through each filter in the filter list and processes each exposures in the exposure list for that filter. ... First it checks to see if the exposure is a full-frame low resolution mode, and if so it runs omcomb to combine the four separate image segments into a single full-frame image, which is then processed instead of the individual image segments. ...

... Posts tagged ?particle filter? ... Astronomers have developed their ways of processing signals almost independent to but sometimes collaboratively with engineers, although the fundamental of signal processing is same: extracting information. ... This particular issue of IEEE signal processing magazine may shed lights for astronomers interested in signal processing and statistics outside the astronomical society. IEEE Signal Processing Magazine Jul. ... ArXiv] 3rd week, Dec. ... Entries RSS . ...

An improved correlator for ALMA has been proposed by an European consortium including Astron (NL), Bordeaux University (FR), IRAM (FR) and Arcetri. ... The work in Arcetri has focused on the efficent design of a digital receiver, that exploits the peculiarities of the astronomical signal, i.e. the extremely coarse quantization and the stochastic nature of the input signal. ... A complex mixer followed by a two stage bandpass filter. ... Phase effects in a hybrid correlator . ...

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

... trous Up: The discrete wavelet Previous: Introduction . Multiresolution analysis [ 25 ] results from the embedded subsets generated by the interpolations at different scales. ... In order to restore the original data, Mallat uses the properties of orthogonal wavelets, but the theory has been generalized to a large class of filters [ 8 ] by introducing two other filters and named conjugated to h and g . ... Figure: The filter bank associated with the multiresolution analysis . ...

... In doing so, the filter also reads all of the RTF markup that specifies the destination, paragraph and text styles of the next character. ... If the text was not SPECIAL, process the paragraph style
. ... Using the HTML paragraph" markup name, the filter (using the .PTag table) knows what tags to generate for the text. ... For each matched entry in the .TMatch table, the filter uses the HTML "text" markup name, the filter (using the .TTag table, see 5.1.2 ) knows what tags to generate for the text...

Instrument Science Report ACS 00-05 MEASURED THROUGHPUT AND BANDPASS OF THE RAMP FILTERS R. C. Bohlin and Z. Tsvetanov 2000 June ABSTRACT ACS has 12 narrow band ramp filters with 2% bandpasses of / and three ramps with medium bandpasses of 9%. ... 4 Instrument Science Report ACS 00-05 Figure 2: Sample transmission profiles for each of the 12 ACS narrow band ramp filters. ... 5 Instrument Science Report ACS 00-05 Figure 3: As in Figure 1, except for the medium band ramp filters. ...

... Jitter imaging (also known as microscanning ) is probably one of the most efficient ways to perform astronomical observations in the infrared. ... Several algorithms are described for each step, having in mind an automatic data processing in pipeline mode (i.e., without user interaction) as intended for the Very Large Telescope. ... Jitter imaging is an efficient method used in astronomical infrared observations to take care of sky background issues with a minimum loss of observing time. ...

Analysis of general features of the chaotic system behavior and investigation of the properties of concrete chaotic sources. ... Analysis of information properties of chaotic systems and chaotic oscillations as concrete objects for information processing and comunications. ... This hypothesis gives a possibility of designing simple mathematical structures accomplishing various processes of information processing using chaos. ... Activities | ... E-mail: chaos@mail.cplire.ru ...

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