火控雷达技术
火控雷達技術
화공뢰체기술
FIRE CONTROL RADAR TECHNOLOGY
2014年
4期
63-68
,共6页
相位编码%MAC序列%回波遮挡%多周期模糊函数%脉冲压缩
相位編碼%MAC序列%迴波遮擋%多週期模糊函數%脈遲壓縮
상위편마%MAC서렬%회파차당%다주기모호함수%맥충압축
phase-coded%MAC sequence%echo eclipse%muti-period ambiguity function%pulse compression
本文在讨论用二相编码信号构成的准连续波的数学模型和模糊函数的基础上,引入新的二元序列--MAC序列,并对其产生以及自相关特性进行了详细研究。通过对采用该序列编码的准连续波信号的周期单码重复时和多码重复的模糊函数进行仿真,其结果具有很好的图钉状,即有较高的距离和多普勒分辨率;并将MAC序列的相位编码准连续波应用在波形设计中,脉压仿真结果表明相比较m序列码,MAC序列更适用于目标检测。
本文在討論用二相編碼信號構成的準連續波的數學模型和模糊函數的基礎上,引入新的二元序列--MAC序列,併對其產生以及自相關特性進行瞭詳細研究。通過對採用該序列編碼的準連續波信號的週期單碼重複時和多碼重複的模糊函數進行倣真,其結果具有很好的圖釘狀,即有較高的距離和多普勒分辨率;併將MAC序列的相位編碼準連續波應用在波形設計中,脈壓倣真結果錶明相比較m序列碼,MAC序列更適用于目標檢測。
본문재토론용이상편마신호구성적준련속파적수학모형화모호함수적기출상,인입신적이원서렬--MAC서렬,병대기산생이급자상관특성진행료상세연구。통과대채용해서렬편마적준련속파신호적주기단마중복시화다마중복적모호함수진행방진,기결과구유흔호적도정상,즉유교고적거리화다보륵분변솔;병장MAC서렬적상위편마준련속파응용재파형설계중,맥압방진결과표명상비교m서렬마,MAC서렬경괄용우목표검측。
Based on the analysis of mathematical model and ambiguity function of binary phase-coded Quasi-continuous wave( quasi-CW) ,a new kind of binary sequence—MAC sequence is introduced, and its generation and autocorrelation characteristics are studied in detail. It has a good form of thumbtack by simulating the ambiguity function of periodical repetition with single-code and multi-code, which means that the phase-coded Quasi-CW based on MAC sequence possesses higher range and Doppler resolution. Finally, the phase-coded Quasi-CW based on MAC sequence is applied to waveform design and the simulation results indicate that the MAC se-quence has an advantage over m-sequence code in the aspect of target detection.