系统工程与电子技术
繫統工程與電子技術
계통공정여전자기술
SYSTEMS ENGINEERING AND ELECTRONICS
2015年
4期
795-801
,共7页
相位编码%脉冲压缩雷达%数字射频存储器%间歇采样%码元预测%转发干扰
相位編碼%脈遲壓縮雷達%數字射頻存儲器%間歇採樣%碼元預測%轉髮榦擾
상위편마%맥충압축뢰체%수자사빈존저기%간헐채양%마원예측%전발간우
phase-coded%pulse compression radar%digital radio frequency memory (DRFM)%intermittent-sampling%predicted code%repeater jamming
以对相位编码脉冲压缩雷达干扰为背景，分析了相位编码信号的编码特点，介绍了间歇采样直接转发和重复转发干扰的原理与干扰效果，在时域详细推导了相位编码信号的脉冲压缩处理过程。在此基础上提出了一种基于数字射频存储器的间歇采样预测转发干扰方法，在理论上分析了其干扰效果：可使相位编码脉冲压缩雷达产生多个导前、导后的逼真假目标。研究了码元的选择和重组对干扰效果的影响。通过仿真实验对文中分析的结论进行了验证。结果表明，间歇采样预测转发干扰比间歇采样直接转发和重复转发干扰具有更好的干扰效果。
以對相位編碼脈遲壓縮雷達榦擾為揹景，分析瞭相位編碼信號的編碼特點，介紹瞭間歇採樣直接轉髮和重複轉髮榦擾的原理與榦擾效果，在時域詳細推導瞭相位編碼信號的脈遲壓縮處理過程。在此基礎上提齣瞭一種基于數字射頻存儲器的間歇採樣預測轉髮榦擾方法，在理論上分析瞭其榦擾效果：可使相位編碼脈遲壓縮雷達產生多箇導前、導後的逼真假目標。研究瞭碼元的選擇和重組對榦擾效果的影響。通過倣真實驗對文中分析的結論進行瞭驗證。結果錶明，間歇採樣預測轉髮榦擾比間歇採樣直接轉髮和重複轉髮榦擾具有更好的榦擾效果。
이대상위편마맥충압축뢰체간우위배경，분석료상위편마신호적편마특점，개소료간헐채양직접전발화중복전발간우적원리여간우효과，재시역상세추도료상위편마신호적맥충압축처리과정。재차기출상제출료일충기우수자사빈존저기적간헐채양예측전발간우방법，재이론상분석료기간우효과：가사상위편마맥충압축뢰체산생다개도전、도후적핍진가목표。연구료마원적선택화중조대간우효과적영향。통과방진실험대문중분석적결론진행료험증。결과표명，간헐채양예측전발간우비간헐채양직접전발화중복전발간우구유경호적간우효과。
A jamming technique aims at phase-coded pulse compression radar.The encoded characteristic of phase-coded signal is analyzed.The jamming principle and effectiveness of intermittent-sampling direct and periodic repeater are presented.The derivation of phase-coded pulse compression process is described in detail. On the basis of the above mentioned,a new jamming method of intermittent-sampling predictive repeater based on digital radio frequency memory (DRFM)is presented.The jamming effectiveness is analyzed theoretically. This method can make the phase-coded pulse radar form several precede and lag lifelike false targets.The selec-tion and combination of code on the jamming effectiveness are discussed.The conclusion is approved by simula-tion.The studied result shows that the proposed jamming has better effectiveness than the intermittent-sam-pling direct and periodic repeater jamming.
