本 文提出全相位DFT數字濾波器，全相位FIR濾波器及全相位FFr頻譜分析.全相位數字濾波器它有良好的濾波
器頻率特性，適用放頻譜分析，多路復用和擴頻通信中窄帶干擾抑制等頻域自適應濾波器.
關健詞:全相位DFT濾波器;全相位FIR濾波器;全相位FFT頻譜分析;
The All Phase Digital Filter
Wa ng Z ha oh ua H ou Z he ng xin S uF e i
(Sc ho olo f I n fo rm ati on E n gin ee rin g,T i a njin U niv ers ity ,Ti anjin,30 0072)
Ab st rac t:T hisp aperin troducesa a lp haseD Frd igitalfi lter,a lp haseF IRf iltera nda llph aseF FTf requencya nalysis.T his
al phase digital filters have good frequency performance. Whereas it is suited for the design of frequency domain adaptive filter
which can be applied to lots of fields such as frequency analysis, multiplex and suppressing narrow-band interference in PN
spread-spectrum systems.
Ke yw o rds: alp haseD Frf ilter;allph aseF IRfi lter,al lph aseF Frfr equencya nalysis