舰船电子对抗
艦船電子對抗
함선전자대항
JIANGCHUAN DIANZI DUIKANG
2014年
1期
104-108
,共5页
信道化接收机%多相滤波器%CORDIC算法%瞬时测频
信道化接收機%多相濾波器%CORDIC算法%瞬時測頻
신도화접수궤%다상려파기%CORDIC산법%순시측빈
channelized receiver%polyphase filter%CORDIC algorithm%instantaneous frequency measurement
在输入为实信号、滤波器组为偶型排列并且50％重叠的情况下，推导出多相滤波信道化接收机的高效结构，利用Hilbert变换将0信道的实数信号变为复解析信号，然后进行CORDIC算法测相、一阶差分算法测频。通过仿真实验证明该设计方案的正确性与可行性。
在輸入為實信號、濾波器組為偶型排列併且50％重疊的情況下，推導齣多相濾波信道化接收機的高效結構，利用Hilbert變換將0信道的實數信號變為複解析信號，然後進行CORDIC算法測相、一階差分算法測頻。通過倣真實驗證明該設計方案的正確性與可行性。
재수입위실신호、려파기조위우형배렬병차50％중첩적정황하，추도출다상려파신도화접수궤적고효결구，이용Hilbert변환장0신도적실수신호변위복해석신호，연후진행CORDIC산법측상、일계차분산법측빈。통과방진실험증명해설계방안적정학성여가행성。
In case that the input is real signal ,the filter group is even-arrangement and 50% overlap-ping ,this paper educes the efficient structure of channelized receiver based on polyphase filter ,uses Hilbert transformation to transform the real signal of channel zero into plural analysis signal ,and then performs the phase measurement by CORDIC algorithm and frequency measurement by one-order difference algorithm .T he simulation results prove the correctness and feasibility of the design scheme .
