现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
17期
39-42
,共4页
刘能%傅其祥%谢晓霞%王伟
劉能%傅其祥%謝曉霞%王偉
류능%부기상%사효하%왕위
全极化有源假目标干扰系统%比值校正法%幅相一致性校正%FPGA+DSP
全極化有源假目標榦擾繫統%比值校正法%幅相一緻性校正%FPGA+DSP
전겁화유원가목표간우계통%비치교정법%폭상일치성교정%FPGA+DSP
full polarimetric active decoy system%ratio correction method%amplitude-phase consistency correction%FPGA plus DSP
全极化有源假目标干扰系统,具有调制、转发任意极化形式假目标的能力,由于H,V极化通道之间幅相特性存在着不可避免的差异,降低了后续数字信号处理精度,从而影响了系统的干扰效果。针对这一问题,应用对频谱的比值校正法,解决了离散频谱的幅值和相位的精确求解问题,较好地校正了H,V极化通道之间的幅相不一致,并且在基于FPGA+DSP的数字信号处理板上实现了该方法,实验证明该方法校准效果良好,有较强的应用价值。
全極化有源假目標榦擾繫統,具有調製、轉髮任意極化形式假目標的能力,由于H,V極化通道之間幅相特性存在著不可避免的差異,降低瞭後續數字信號處理精度,從而影響瞭繫統的榦擾效果。針對這一問題,應用對頻譜的比值校正法,解決瞭離散頻譜的幅值和相位的精確求解問題,較好地校正瞭H,V極化通道之間的幅相不一緻,併且在基于FPGA+DSP的數字信號處理闆上實現瞭該方法,實驗證明該方法校準效果良好,有較彊的應用價值。
전겁화유원가목표간우계통,구유조제、전발임의겁화형식가목표적능력,유우H,V겁화통도지간폭상특성존재착불가피면적차이,강저료후속수자신호처리정도,종이영향료계통적간우효과。침대저일문제,응용대빈보적비치교정법,해결료리산빈보적폭치화상위적정학구해문제,교호지교정료H,V겁화통도지간적폭상불일치,병차재기우FPGA+DSP적수자신호처리판상실현료해방법,실험증명해방법교준효과량호,유교강적응용개치。
Full polarimetric active decoy system has the ability to modulate and transmit the false targets with arbitrary po-larization forms. Because the unavoidable differences of amplitude and phase between horizontal and vertical polarization chan-nels reduce the accuracy of the following digital signal processing,and affect the jamming effect,author corrects the difference by applying the ratio correction method of frequency spectrum. The accurate solution of amplitude and phase of the discrete spec-trum was realized. The method was realized with FPGA and DSP. Experiments prove the calibration effect and strong application value of this method.