Empirical study of stepped-FM UWB microwave sensor

Author

Nakamura, Ryohei ; Kajiwara, Akihiro

Author_Institution

Grad. Sch. of Environ. Eng., Univ. of Kitakyushu, Kitakyushu, Japan

fYear

2011

fDate

16-19 Jan. 2011

Firstpage

363

Lastpage

366

Abstract

This paper presents an ultra wideband (UWB) microwave sensor using a stepped-FM scheme. Impulse-radio UWB sensor requires high speed A/D in order to synchronize and detect the nanosecond pulse echo. Also it may be difficult to use the bandwidth wider than 500MHz without causing interference with other wireless systems. Our suggested scheme which does not require any high speed A/D devices can coexist with other wireless systems since spectrum holes (non-activated within a portion of the radio spectrum) are easy to be designed over specific bandwidth. In this paper, the measurements were conducted using the experimental device and the above mentioned characteristic is investigated.

Keywords

analogue-digital conversion; echo; frequency modulation; microwave detectors; radio spectrum management; ultra wideband communication; UWB microwave sensor; high speed A/D; impulse-radio UWB sensor; nanosecond pulse echo; radio spectrum; stepped-FM scheme; ultra wideband microwave sensor; wireless systems; Antenna measurements; Degradation; Frequency measurement; Interference; Microwave sensors; Narrowband; Wireless communication; Stepped-FM; UWB; microwave sensor; spectrum-hole;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Symposium (RWS), 2011 IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4244-7687-9

Type

conf

DOI

10.1109/RWS.2011.5725460

Filename

5725460