3周波交代FSK方式の耐マルチパス特性

概要

論文の詳細を見る
There have been many researches and developments for high-speed (more than several hundred kb/s) digital mobile radio systems to construct Integrated Services Digital Network (ISDN). It arises, however, a serious problem of performance degradation due to intersymbol interference (ISI) caused by multipath fading in high-speed digital transmission. There are many strategies (e.g., equalizers, diversity combining techniques, error correcting codes, etc.) to combat multipath. But these techniques are very expensive to implement. Alternative inexpensive methods, using antimultipath signaling, have also been proposed. We consider one of such antimultipath techniques. In this paper, we analyze performance of three-frequency commutation FSK in contrast to traditional two-frequency FSK. We analytically calculate bit error probabilities for three-frequency commutation FSK and compare results with those for traditional FSK. We also discuss about improvememnt of our antimultipath commutation signaling.
岡山理科大学の論文