Presentation 2016-11-11
Reducing near-far problem by elevated pseudolite with transmission power control
Satoshi Takahashi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Three-dimensional satellite navigation on the ground requires radiowave reception from more than the four satellites. The use of a pseudo satellite, or pseudolite, would be a possible way for enabling us to know a users position. It is usually placed on the ground, transmits radiowave that is the same format as the navigation satellites transmit, and acts as the navigation satellite. We can use a pseudolite as one of a needed satellite of obtaining the position within a distance the receiver can use the radiowave. In close vicinity to a pseudolite, however, the receiver encounters an excessive reception power and it results in lost of the position by blocking the satellite radiowaves. The phenomena is referred to as the near-far problem. For alleviating the effect, the burst pulse transmission and its power control have been proposed for the pseudolite radiowave. This paper evaluates increase in the availability of a pseudolite signal and reducing interference due to the near-far problem by elevating the pseudolite.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) GPS / pseudo satellite / pseudolite / near-far problem / burst pulse transmission / transmission power control
Paper # CS2016-46
Date of Issue 2016-11-03 (CS)

Conference Information
Committee CS
Conference Date 2016/11/10(2days)
Place (in Japanese) (See Japanese page)
Place (in English) KKR Hakodate
Topics (in Japanese) (See Japanese page)
Topics (in English) Broadband Access Systems, Home Networks, Network Services, Applications for Communications, etc.
Chair Tetsuya Yokotani(Kanazawa Inst. of Tech.)
Vice Chair Hidenori Nakazato(Waseda Univ.)
Secretary Hidenori Nakazato(NTT)
Assistant

Paper Information
Registration To Technical Committee on Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Reducing near-far problem by elevated pseudolite with transmission power control
Sub Title (in English)
Keyword(1) GPS
Keyword(2) pseudo satellite
Keyword(3) pseudolite
Keyword(4) near-far problem
Keyword(5) burst pulse transmission
Keyword(6) transmission power control
1st Author's Name Satoshi Takahashi
1st Author's Affiliation Hiroshima City University(Hiroshima City Univ.)
Date 2016-11-11
Paper # CS2016-46
Volume (vol) vol.116
Number (no) CS-293
Page pp.pp.33-37(CS),
#Pages 5
Date of Issue 2016-11-03 (CS)