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R and D of suitable unit to heightening in grade of mobile wireless telegraphy system; Test on data transmission characteristics and research on transmission method. Ido musen system no kodoka ni tekigo kano na sochi no kaihatsu kenkyu; Deta denso tokusei shiken oyobi denso hoho no kenkyu

Journal Article:

Abstract

In order to heighten the grade by the present mobile wireless telegraphy system, through the experimentation and research on both data transmission and error correction methods, both data and facsimile transmission were confirmed to be possible together with the following result: In the character transmission by a CPU connection and other encoded transmissions in which even an error by one bit considerably influences the contents of data, 1200bps, as able to be widened in service area, is profitable. While the data transmission in the mobile wireless telegraphy generates many errors due to phasing and noise along the propagation route. To attenuate those errors, error correction encoding is effectively applied with a correction method to be selected by kind of data. Further the 150MHz band, as more largely influenced by urban noise than the 400MHz band, narrows service area in the urban district. While the mobile wireless telegraphy is restricted in frequency band region. 12 refs., 26 figs., 9 tabs.
Authors:
Onigawara, Shuichi; Koyama, Masayoshi; Masunaga, Katsutoshi [1] 
  1. Kyushu Electric Power Co., Inc., Fukuoka (Japan)
Publication Date:
Mar 30, 1989
Product Type:
Journal Article
Reference Number:
NEDO-89-920406; EDB-90-111585
Resource Relation:
Journal Name: Kenkyu Kiho (Kyushu Denryoku); (Japan); Journal Volume: 70
Subject:
42 ENGINEERING; DATA TRANSMISSION; CORRECTIONS; P INVARIANCE; PERFORMANCE TESTING; RADIO EQUIPMENT; FREQUENCY RANGE; INTERFERENCE; PORTABLE EQUIPMENT; RADIO NOISE; WAVE PROPAGATION; COMPUTER NETWORKS; COMPUTERS; URBAN AREAS; COMMUNICATIONS; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; EQUIPMENT; INVARIANCE PRINCIPLES; NOISE; RADIATIONS; RADIOWAVE RADIATION; TESTING; 426002* - Engineering- Lasers & Masers- (1990-)
OSTI ID:
6876937
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0287-9263; CODEN: KKKKE
Submitting Site:
NEDO
Size:
Pages: 113-135
Announcement Date:

Journal Article:

Citation Formats

Onigawara, Shuichi, Koyama, Masayoshi, and Masunaga, Katsutoshi. R and D of suitable unit to heightening in grade of mobile wireless telegraphy system; Test on data transmission characteristics and research on transmission method. Ido musen system no kodoka ni tekigo kano na sochi no kaihatsu kenkyu; Deta denso tokusei shiken oyobi denso hoho no kenkyu. Japan: N. p., 1989. Web.
Onigawara, Shuichi, Koyama, Masayoshi, & Masunaga, Katsutoshi. R and D of suitable unit to heightening in grade of mobile wireless telegraphy system; Test on data transmission characteristics and research on transmission method. Ido musen system no kodoka ni tekigo kano na sochi no kaihatsu kenkyu; Deta denso tokusei shiken oyobi denso hoho no kenkyu. Japan.
Onigawara, Shuichi, Koyama, Masayoshi, and Masunaga, Katsutoshi. 1989. "R and D of suitable unit to heightening in grade of mobile wireless telegraphy system; Test on data transmission characteristics and research on transmission method. Ido musen system no kodoka ni tekigo kano na sochi no kaihatsu kenkyu; Deta denso tokusei shiken oyobi denso hoho no kenkyu." Japan.
@misc{etde_6876937,
title = {R and D of suitable unit to heightening in grade of mobile wireless telegraphy system; Test on data transmission characteristics and research on transmission method. Ido musen system no kodoka ni tekigo kano na sochi no kaihatsu kenkyu; Deta denso tokusei shiken oyobi denso hoho no kenkyu}
author = {Onigawara, Shuichi, Koyama, Masayoshi, and Masunaga, Katsutoshi}
abstractNote = {In order to heighten the grade by the present mobile wireless telegraphy system, through the experimentation and research on both data transmission and error correction methods, both data and facsimile transmission were confirmed to be possible together with the following result: In the character transmission by a CPU connection and other encoded transmissions in which even an error by one bit considerably influences the contents of data, 1200bps, as able to be widened in service area, is profitable. While the data transmission in the mobile wireless telegraphy generates many errors due to phasing and noise along the propagation route. To attenuate those errors, error correction encoding is effectively applied with a correction method to be selected by kind of data. Further the 150MHz band, as more largely influenced by urban noise than the 400MHz band, narrows service area in the urban district. While the mobile wireless telegraphy is restricted in frequency band region. 12 refs., 26 figs., 9 tabs.}
journal = {Kenkyu Kiho (Kyushu Denryoku); (Japan)}
volume = {70}
journal type = {AC}
place = {Japan}
year = {1989}
month = {Mar}
}