OPTICAL RECEIVER FOR VHF MULTICHANNEL VIDEO TRANSMISSION

被引：6
|
作者：
TAKAHASHI, Y
NAGANO, K
TAKASAKI, Y
机构：
[1] Central Research Laboratory, Hitachi, Ltd., Kokubunji
来源：
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 1990年 / 8卷 / 07期
关键词：
D O I：
10.1109/49.59141
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Optical receivers for multichannel TV transmission in the VHF band are analyzed and tested from the viewpoints of linearity, sensitivity, and frequency response. Photodiodes and avalanche photodiodes are compared for use as a front-end detector. Optimization of the preamplifiers is studied in terms of both configurations and biasing conditions. Improvement of frequency characteristics, using a Percival coil, is also investigated. It is concluded that a receiver using a photodiode can attain as high sensitivity as and a superior linearity (around 5 dB) to one using an avalanche photodiode. © 1990 IEEE
引用
收藏
页码：1382 / 1386
页数：5
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