The Search for Extraterrestrial Intelligence, SETIPhilip Morrison, John Billingham, John Wolfe National Aeronautics and Space Administration, Scientific and Technical Information Office, 1977 - 276 páginas |
Dentro del libro
Resultados 1-5 de 15
Página xiii
... Pulsar signature SECTION III - 3 Figure 1 - Off - axis signal detection scheme Figure 2- System sensitivity relations Figure 3 Antenna size requirements SECTION III - 8 123 130 132 134 Figure 1 - Bi - static radar range for ISS receiver ...
... Pulsar signature SECTION III - 3 Figure 1 - Off - axis signal detection scheme Figure 2- System sensitivity relations Figure 3 Antenna size requirements SECTION III - 8 123 130 132 134 Figure 1 - Bi - static radar range for ISS receiver ...
Página 80
... pulsars was a fortuitous accident due to the presence and curiosity of an astute graduate student in a favorable observational situation . Analog pen and paper recording of data was in use . For a third and final example , proof of the ...
... pulsars was a fortuitous accident due to the presence and curiosity of an astute graduate student in a favorable observational situation . Analog pen and paper recording of data was in use . For a third and final example , proof of the ...
Página 82
... pulsar pulse - shape studies should be encouraged . Radio Frequency Interference ( RFI ) Solving the RFI problem is crucial to SETI . Section III - 8 discusses RFI extensively and Section III - 9 presents the unanimous Science Workshop ...
... pulsar pulse - shape studies should be encouraged . Radio Frequency Interference ( RFI ) Solving the RFI problem is crucial to SETI . Section III - 8 discusses RFI extensively and Section III - 9 presents the unanimous Science Workshop ...
Página 123
... pulsar produced by simultaneous observation on adjacent frequency channels . ( Photograph courtesy of Martin Ewing , Calif . Inst . of Technology . ) We do not wish to overstress or understress the importance of pattern recognition ...
... pulsar produced by simultaneous observation on adjacent frequency channels . ( Photograph courtesy of Martin Ewing , Calif . Inst . of Technology . ) We do not wish to overstress or understress the importance of pattern recognition ...
Página 157
... Pulsars The time - averaged flux density of pulsars is generally quite weak : at 1.5 GHz it is ≤0.1 Jy . This may be compared with a minimum detectable flux for a 26 - m SETI program ( T , = 15 K , 7 = 200 $ , KR = 1 , np = 0.6 ) of 45 ...
... Pulsars The time - averaged flux density of pulsars is generally quite weak : at 1.5 GHz it is ≤0.1 Jy . This may be compared with a minimum detectable flux for a 26 - m SETI program ( T , = 15 K , 7 = 200 $ , KR = 1 , np = 0.6 ) of 45 ...
Otras ediciones - Ver todas
The Search for Extraterrestrial Intelligence, SETI Philip Morrison,John Billingham,John Wolfe Vista completa - 1977 |
The Search for Extraterrestrial Intelligence, SETI Philip Morrison,John Billingham,John Wolfe Vista completa - 1977 |
The Search for Extraterrestrial Intelligence, SETI Philip Morrison,John Billingham,John Wolfe Vista completa - 1977 |
Términos y frases comunes
Ames Research Center antenna Arecibo array astrometric astrophysical bandwidth beam capabilities channels clouds collecting area Communication with Extraterrestrial COMPLEMENTARY DOCUMENT cosmic cost density detection direction distance Earth Earth-based electromagnetic emission entire sky evolution extraterrestrial civilizations extraterrestrial intelligence flux level Frank Drake frequency band galactic Galaxy ground-based hydrogen Institute of Technology INTERSTELLAR COMMUNICATION interstellar medium INTERSTELLAR SEARCH SYSTEM Jesse Greenstein Jet Propulsion Laboratory maser microwave window NASA noise observations Observatory optimum orbit Philip Morrison planetary systems planets polarization possible present probes Project Cyclops pulsars pulse radar radiation radio astronomy radio frequency interference radio telescopes range receiver resolution satellite Science Workshop scientific Search for Signals Section SENS sensitivity SETI system signals from extraterrestrial solar system sources space spectral type spectrum star formation stellar strategy structure studies techniques temperature terrestrial transmitting University VLBI W/m² water hole wavelength