The estimation of efficiency of the search for radio signals from correspondents with a mutually unknown location in space
Heading:
| 1Panfilov, IP, 2Panfilov, VI, 3Solomko, AV, 4Mikhailovskii, VG 1Odessa National O. S. Popov Academy Of Telecommunications, Odessa, Ukraine 2The southern regional branch of «MTS-Ukraine» CJSC «Ukrainian Mobile Communications», Odessa, Ukraine 3Odessa branch of the Ukrainian State Center of Radio Frequencies, Odessa, Ukraine 4MTS Ukraine, Kyiv, Ukraine |
| Kosm. nauka tehnol. 2010, 16 ;(3):68-73 |
| https://doi.org/10.15407/knit2010.03.068 |
| Publication Language: Russian |
Abstract: We give some results of probabilistic estimation of the search for radio signals from correspondents with a mutually unknown location. We derived the formulas for the probability to reveal at least one correspondent with unknown coordinates and to find the average number of such correspondents using a receiving system with preset parameters. It is shown that even the reiteration of observation series with the use of known methods does not allow us to increase the probability of their discovery to some level acceptable from the practical point of view. This means practical impossibility to detect signals from the correspondents of such a type at space distances using universally accepted approach and results in the necessity to elaborate a new search strategy.
|
| Keywords: location in space, radio signals, reveal probability |
References:
1. Gindilis L. M. SETI: Searching for the extraterrestrial intelligence, 648 p. (Fizmatlit, Moscow, 2004) [in Russian].
2. Goldsmith D., Owen T. Searching for life in the Universe, 488 p. (Nauka, Moscow, 1983) [in Russian].
3. Kardashev N. S. Strategy for the search for extraterrestrial intelligence. Vopr. filosofii, No. 12, 43—54 (1977) [in Russian].
4. Problem of searching for life in the Universe. Proc. of Tallinn Symposium. (Moscow, 1986) [in Russian].
5. Tarter J. C. A Review of the Experimental Studies on the Search for Messages from Extraterrestrial Civilizations (Optical and Radio); The Cosmic Haystack and Recent U.S. SETI Programs. In: Problem of searching for life in the Universe: Proc. of Tallinn Symposium, 170— 182; 220—225 (Moscow, 1986) [in Russian].
6. Filippova L. N. About the radio-observation of the selected SETI-object by RATAN-600, RT-15 and RT-3 as an information for the reflection on the SETI strategy. In: Proc. of Tallinn Symposium. (Moscow, 1986).
7. Cherenkova E. L., Chernyshev O. V. Radiowave propagation, 272 p. (Radio i svjaz', Moscow, 1984) [in Russian].
8. Shklovsky I. S. Universe, Life, Intelligence. (Janus, Moscow, 1966) [in Russian].
9. Allen Telescope Array Fact Sheet: Press release of SETI Institute. Available: http://www.seti.org/ata/ . Observations of «columniform» sprites. J. Atmos. Sol.-Terr. Phys., 60, 733—740 (1998).