The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Pada masa ini terdapat keperluan untuk pembangunan jalur frekuensi baharu untuk membolehkan penciptaan sistem komunikasi mudah alih generasi akan datang. Daripada jalur berpotensi, jalur gelombang mikro 3 GHz dan lebih tinggi memegang janji yang paling besar. Kajian eksperimen tentang ciri kelewatan perambatan berbilang laluan mesti dijalankan untuk mencapai penghantaran berkelajuan tinggi dalam jalur gelombang mikro. Kami telah membangunkan sistem untuk mengukur profil kelewatan penyebaran jalur lebar gelombang mikro melebihi lebar jalur penyebaran 100 MHz dalam jalur 3, 8 dan 15 GHz. Percubaan kami mengesahkan prestasi sistem dengan resolusi 20-ns, kelewatan boleh ukur maksimum 40-µs, ralat amplitud relatif dalam 3 dB dan julat dinamik melebihi 60 dB. Kami menggunakan sistem kami untuk mengukur profil kelewatan di kawasan bandar dengan garis penglihatan, terutamanya, dari segi kesan ketinggian antena mudah alih. Contoh biasa dibentangkan. Analisis menunjukkan bahawa sebaran kelewatan meningkat dengan jarak hantar/terima dan menurun dengan ketinggian antena yang lebih tinggi.
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Salinan
Hironari MASUI, Koichi TAKAHASHI, Satoshi TAKAHASHI, Kouzou KAGE, Takehiko KOBAYASHI, "Delay Profile Measurement System for Microwave Broadband Transmission and Analysis of Delay Characteristics in an Urban Environment" in IEICE TRANSACTIONS on Electronics,
vol. E82-C, no. 7, pp. 1287-1292, July 1999, doi: .
Abstract: There is currently a need for development of a new frequency band to enable creation of next-generation mobile communication systems. Of the potential bands, the 3 GHz and over microwave band holds the greatest promise. Experimental studies on the delay characteristics of multipath propagation must be conducted in order to achieve high-speed transmission in the microwave band. We have developed a system for measuring the microwave broadband propagation delay profile over 100 MHz spread bandwidths in the 3, 8 and 15 GHz bands. Our experiments confirmed system performances of 20-ns resolution, 40-µs maximum measurable delay, relative amplitude error of within 3 dB and dynamic range of over 60 dB. We used our system to measure delay profiles on an urban area with line of sight, particularly, in terms of the effects of mobile antenna height. Typical examples are presented. Analysis showed that delay spreads increased with transmit/receive distance and decreased with the higher antenna height.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e82-c_7_1287/_p
Salinan
@ARTICLE{e82-c_7_1287,
author={Hironari MASUI, Koichi TAKAHASHI, Satoshi TAKAHASHI, Kouzou KAGE, Takehiko KOBAYASHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Delay Profile Measurement System for Microwave Broadband Transmission and Analysis of Delay Characteristics in an Urban Environment},
year={1999},
volume={E82-C},
number={7},
pages={1287-1292},
abstract={There is currently a need for development of a new frequency band to enable creation of next-generation mobile communication systems. Of the potential bands, the 3 GHz and over microwave band holds the greatest promise. Experimental studies on the delay characteristics of multipath propagation must be conducted in order to achieve high-speed transmission in the microwave band. We have developed a system for measuring the microwave broadband propagation delay profile over 100 MHz spread bandwidths in the 3, 8 and 15 GHz bands. Our experiments confirmed system performances of 20-ns resolution, 40-µs maximum measurable delay, relative amplitude error of within 3 dB and dynamic range of over 60 dB. We used our system to measure delay profiles on an urban area with line of sight, particularly, in terms of the effects of mobile antenna height. Typical examples are presented. Analysis showed that delay spreads increased with transmit/receive distance and decreased with the higher antenna height.},
keywords={},
doi={},
ISSN={},
month={July},}
Salinan
TY - JOUR
TI - Delay Profile Measurement System for Microwave Broadband Transmission and Analysis of Delay Characteristics in an Urban Environment
T2 - IEICE TRANSACTIONS on Electronics
SP - 1287
EP - 1292
AU - Hironari MASUI
AU - Koichi TAKAHASHI
AU - Satoshi TAKAHASHI
AU - Kouzou KAGE
AU - Takehiko KOBAYASHI
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E82-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 1999
AB - There is currently a need for development of a new frequency band to enable creation of next-generation mobile communication systems. Of the potential bands, the 3 GHz and over microwave band holds the greatest promise. Experimental studies on the delay characteristics of multipath propagation must be conducted in order to achieve high-speed transmission in the microwave band. We have developed a system for measuring the microwave broadband propagation delay profile over 100 MHz spread bandwidths in the 3, 8 and 15 GHz bands. Our experiments confirmed system performances of 20-ns resolution, 40-µs maximum measurable delay, relative amplitude error of within 3 dB and dynamic range of over 60 dB. We used our system to measure delay profiles on an urban area with line of sight, particularly, in terms of the effects of mobile antenna height. Typical examples are presented. Analysis showed that delay spreads increased with transmit/receive distance and decreased with the higher antenna height.
ER -