兵工自动化
兵工自動化
병공자동화
ORDNANCE INDUSTRY AUTOMATION
2015年
4期
52-55
,共4页
民用航海雷达%占空比%信号分选
民用航海雷達%佔空比%信號分選
민용항해뢰체%점공비%신호분선
CMR%duty ratio%de-interleaving
针对民用航海雷达的信号干扰会使舰艇雷达侦察告警设备出现重频分频和虚假信号增批现象的问题,提出一种民用航海雷达脉宽、重复间隔等典型特征参数的定量分析方法。通过对民用航海雷达影响侦察告警设备信号分选进行分析,得出由脉宽和重复周期确定的占空比是信号分选的重要依据,并结合实际问题,在舰载侦察告警设备信号分选处理过程中,选择合适的占空比值来检验雷达信号的真实性。分析结果表明,该方法能够有效地减少民用航海雷达产生的重频分频和虚假信号增批现象。
針對民用航海雷達的信號榦擾會使艦艇雷達偵察告警設備齣現重頻分頻和虛假信號增批現象的問題,提齣一種民用航海雷達脈寬、重複間隔等典型特徵參數的定量分析方法。通過對民用航海雷達影響偵察告警設備信號分選進行分析,得齣由脈寬和重複週期確定的佔空比是信號分選的重要依據,併結閤實際問題,在艦載偵察告警設備信號分選處理過程中,選擇閤適的佔空比值來檢驗雷達信號的真實性。分析結果錶明,該方法能夠有效地減少民用航海雷達產生的重頻分頻和虛假信號增批現象。
침대민용항해뢰체적신호간우회사함정뢰체정찰고경설비출현중빈분빈화허가신호증비현상적문제,제출일충민용항해뢰체맥관、중복간격등전형특정삼수적정량분석방법。통과대민용항해뢰체영향정찰고경설비신호분선진행분석,득출유맥관화중복주기학정적점공비시신호분선적중요의거,병결합실제문제,재함재정찰고경설비신호분선처리과정중,선택합괄적점공비치래검험뢰체신호적진실성。분석결과표명,해방법능구유효지감소민용항해뢰체산생적중빈분빈화허가신호증비현상。
Aiming at the problem that civil marine radar (CMR) signals disturb the de-interleaving process of ship borne reconnaissance&warning equipment and make pulse repetition frequency (PRF) false and harmonic, put forward a kind of quantitative analysis method for pulse width (PW) and pulse repetition interval (PRI) of CMR. By analyzing the influence of CMR on de-interleaving process of reconnaissance&warning, draw a conclusion that duty ratio determined by PW and PRI is important to the de-interleaving process. Combined with practical problems, the proper duty ratio threshold is selected to verify the facticity of radar signal. The results showed that the method can effectively reduce the signals whose PRF is harmonic and false because of CMR.