发明名称 DIVERSITY RADIO TRANSMISSION SYSTEM HAVING A SIMPLE AND ECONOMICAL STRUCTURE
摘要 A DIVERSITY RADIO TRANSMISSION SYSTEM HAVING A SIMPLE AND ECONOMICAL STRUCTURE In a system for frequency-diversity transmission, separate and distinct frequency carriers are obtained from the frequency modulation of an oscillator by a pure frequency with an index such that a certain number of Bessel lines thus obtained constitute a corresponding number of separate carriers. All the carriers are subsequently modulated by the information, then poweramplified in a single amplifier having a peak power equal to that of a single signal whose effective power would be the sum of those of the separate carriers. By means of this system, equipment for radio communication by tropospheric or ionospheric scatter propagation can be constructed in a simple manner and at low cost, with a high diversity order.
申请公布号 CA1165819(A) 申请公布日期 1984.04.17
申请号 CA19810369415 申请日期 1981.01.27
申请人 THOMSON-CSF 发明人 COLLIN, CLAUDE
分类号 H04B7/12 主分类号 H04B7/12
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