SPECTRUM SHAPING SAW FILTERS FOR HIGH-BIT-RATE DIGITAL RADIO

被引：6

作者：

GANSSPUCHSTEIN, R ^{[1
]}

RUPPEL, C ^{[1
]}

STOCKER, HR ^{[1
]}

机构：

[1] SIEMENS AG,SAW RES LAB,D-8000 MUNICH 83,FED REP GER

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 1988年 / 35卷 / 06期

关键词：

Digital Communication Systems - Mathematical Techniques--Transfer Functions - Modems - Probability - Radio Interference--Crosstalk;

D O I：

10.1109/58.9323

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The structure of a QAM radio system is explained. Some novel designs that demonstrate the current status of spectral shaping SAW (surface acoustic wave) filters are presented. Compensation of second-order effects is discussed. Experimental results for a filter for a 140-Mb/s 16 QAM cochannel system with a roll-off factor of 0.19 are shown. Two other examples of filters for a 140-Mb/s, 64 QAM system with a 35% relative bandwidth are also presented.

引用

页码：673 / 684

页数：12

共 15 条

[11] Ruppel C., 1985, IEEE 1985 Ultrasonics Symposium. Proceedings. (Cat. No.85CH2209-5), P7
[12] RUPPEL C, 1983, IEEE ULTRASON S, P23
[13] ACOUSTIC SURFACE WAVE FILTERS
TANCRELL, RH
HOLLAND, MG
[J]. PROCEEDINGS OF THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, 1971, 59 (03): : 393 - +
[14] Visintini G., 1987, IEEE 1987 Ultrasonics Symposium Proceedings (Cat. No.87CH2492-7), P145
[15] ORTHOGONAL COCHANNEL OPERATION FOR HIGH SPECTRUM EFFICIENCY BASED ON THE EXAMPLE OF 16 QAM-140 MBIT/S SYSTEMS USING ROLLOFF 0.19
VOGEL, K
[J]. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1987, 5 (03) : 321 - 328

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