现代电子技术
現代電子技術
현대전자기술
Modern Electronics Technique
2015年
23期
13-15,19
,共4页
星地一体化通信系统%同频干扰%辅助地面网络%干扰概率
星地一體化通信繫統%同頻榦擾%輔助地麵網絡%榦擾概率
성지일체화통신계통%동빈간우%보조지면망락%간우개솔
integrated satellite and terrestrial communication system%same frequency interference%ancillary terrestrial net-work%interference probability
星地一体化通信系统中，卫星网络与辅助地面网络共用一段频率，这有利于提高系统频谱效率，但也带来了系统内同频干扰。为了更加准确地计算同频干扰，利用Wilkinson方法将大量干扰源等效为单一干扰源，建立了等效干扰源的统计模型计算同频干扰概率。
星地一體化通信繫統中，衛星網絡與輔助地麵網絡共用一段頻率，這有利于提高繫統頻譜效率，但也帶來瞭繫統內同頻榦擾。為瞭更加準確地計算同頻榦擾，利用Wilkinson方法將大量榦擾源等效為單一榦擾源，建立瞭等效榦擾源的統計模型計算同頻榦擾概率。
성지일체화통신계통중，위성망락여보조지면망락공용일단빈솔，저유리우제고계통빈보효솔，단야대래료계통내동빈간우。위료경가준학지계산동빈간우，이용Wilkinson방법장대량간우원등효위단일간우원，건립료등효간우원적통계모형계산동빈간우개솔。
In integrated satellite and terrestrial communication system,the satellite based network and ancillary terrestrial network share the same frequency band,which is helpful to improve the frequency spectrum efficiency while introducing the same frequency interference in the system. To calculate the same frequency interference accurately,a large number of interfe?rence sources are equivalent to a single source by means of Wilkinson method. The statistical model of the equivalent interfe?rence source was established to calculate the probability of the same frequency interference.
