Presentation 2000/12/1
Fundamental Characteristics of Onboard Bandwidth-Variable FFT Filter Bank
Fumihiro YAMASHITA, Hiroshi KAZAMA, Yoshinori NAKASUGA, Masazumi UEBA,
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Abstract(in English) Voice service is currently the main service in mobile satellite communications, but in the futute, there will be a demand for high-data rate services offering multimedia contents.Therefore, an onboard processor capable of handling services of various data rates is required.In the present study, it is assumed that a non-regenerative onboard processor will be used.The onboard processor must have functions to filter signals and convert their frequencies in a channel-by-channel manner.An FFT filter bank satisfies these requirements.However, the conventional onboard FFT filter bank is only applicable to signals of constant bit rate.Hence, the onboard bandwidth-variable filter bank that can handle many signals of various bit rates is proposed.The principle of operation of the bandwidth-variable FFT filter bank is described, then the BER performance of an FPGA-implemented design is evaluated.
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Keyword(in English) Onboard Processing / FFT filter bank / Bandwidth-variable
Paper # SAT200-90
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Committee SAT
Conference Date 2000/12/1(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fundamental Characteristics of Onboard Bandwidth-Variable FFT Filter Bank
Sub Title (in English)
Keyword(1) Onboard Processing
Keyword(2) FFT filter bank
Keyword(3) Bandwidth-variable
1st Author's Name Fumihiro YAMASHITA
1st Author's Affiliation NTT Network Innovation Laboratories()
2nd Author's Name Hiroshi KAZAMA
2nd Author's Affiliation NTT Service Integration Laboratories
3rd Author's Name Yoshinori NAKASUGA
3rd Author's Affiliation NTT Network Innovation Laboratories
4th Author's Name Masazumi UEBA
4th Author's Affiliation NTT Network Innovation Laboratories
Date 2000/12/1
Paper # SAT200-90
Volume (vol) vol.100
Number (no) 484
Page pp.pp.-
#Pages 6
Date of Issue