Delay profile measurement system for microwave mobile communications and delay characteristics in an urban environment

Author

Kobayashi, Takehiko ; Masui, Hironari ; Takahashi, Satoshi ; Takahashi, Koichi ; Kage, Kouzou

Author_Institution

YRP Key Tech. Labs., Yokosuka, Japan

fYear

1999

fDate

1999

Firstpage

163

Lastpage

166

Abstract

We have developed a system for measuring the microwave broadband propagation delay profile over 100-MHz spread bandwidths in the 3, 8, and 16 GHz bands. Experiments confirmed the system has a time resolution of 20 ns, maximum measurable delay of 40 μs, relative amplitude error of within 3 dB and dynamic range of over 60 dB. We used the system to measure line-of-sight delay profiles in an urban area and particularly studied effects of mobile antenna height. We found that delay spreads increase with increasing transmit/receive distance and become larger at the lower antenna height

Keywords

delays; land mobile radio; measurement systems; microwave propagation; mobile antennas; time measurement; 100 MHz; 16 GHz; 3 GHz; 40 mus; 8 GHz; bandwidth; delay characteristics; delay profile measurement system; dynamic range; experiments; line-of-sight delay profiles; maximum measurable delay; microwave broadband propagation delay profile; microwave mobile communications; mobile antenna height; relative amplitude error; time resolution; transmit/receive distance; urban environment; Antenna measurements; Area measurement; Bandwidth; Delay effects; Delay systems; Dynamic range; Microwave measurements; Particle measurements; Propagation delay; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-5454-0

Type

conf

DOI

10.1109/RAWCON.1999.810955

Filename

810955