broad band converter 中文意思是什麼
broad band converter
解釋
寬帶變頻器-
Digital down - converter ( ddc ) is one of the key technologies used by sdr receiver. the ddc module is a data processing part, following the ad sampler. the main function of ddc is extracting narrow - band data from broad - band data which is digitalized by ad sampler, down - converting these data to base - band, and decreasing data rate as well
Ddc數字下變頻器技術作為軟體無線電中的核心技術,是緊跟在ad采樣后的一個處理模塊,他的主要功能是從輸入的寬帶高速數字信號中提取所需的窄帶信號,將其下變頻為數字零中頻,並降低數據的速率。 -
The comparison between the results of calculation and measurement shows that the two results are in good agreement for the broad band antenna in the l band and the waveguide - coax converter of bj48 type used as antenna in the c band, with a difference of less than 0. 7db, and that the two results also agrees well in the x band for the waveguide - coax converter of bj100 type used as antenna, with an error close to 1db only at few points in the given frequency range
比對結果表明: l波段(加脊天線) 、 c波段( bj48型波導同軸轉換作為接收喇叭)的模擬結果與實測結果符合得較好,誤差小於0 . 7db ;在帶內, x波段( bj100型波導同軸轉換作為接收喇叭)的模擬結果與實測結果比較一致,只在個別頻率點處誤差近1db 。 -
Ku x band broad - bandwidth converter
波段寬帶變頻器設計
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