电讯技术
電訊技術
전신기술
TELECOMMUNICATIONS ENGINEERING
2013年
2期
156-161
,共6页
雷达告警%威胁识别%告警小盒%虚警率
雷達告警%威脅識彆%告警小盒%虛警率
뢰체고경%위협식별%고경소합%허경솔
RWR%threat discrimination%Warning Box%false warning ratio
雷达告警器(RWR)多用“告警小盒”法进行威胁鉴别,虚警率高是影响雷达告警器效能发挥的关键问题之一.提出了一种新的告警器虚警机理,即对于RWR中相同频段内、方向也近似相同的多个脉冲序列组成的信号流中,虽然这些序列各自不相关,且任何单一序列均与某“告警小盒”指标相差很大,但可能有某些组合片段符合该“小盒”告警判决条件,从而产生虚警.仿真结果表明了这种告警机理的存在,而且在某些条件下这种虚警率也相当高.
雷達告警器(RWR)多用“告警小盒”法進行威脅鑒彆,虛警率高是影響雷達告警器效能髮揮的關鍵問題之一.提齣瞭一種新的告警器虛警機理,即對于RWR中相同頻段內、方嚮也近似相同的多箇脈遲序列組成的信號流中,雖然這些序列各自不相關,且任何單一序列均與某“告警小盒”指標相差很大,但可能有某些組閤片段符閤該“小盒”告警判決條件,從而產生虛警.倣真結果錶明瞭這種告警機理的存在,而且在某些條件下這種虛警率也相噹高.
뢰체고경기(RWR)다용“고경소합”법진행위협감별,허경솔고시영향뢰체고경기효능발휘적관건문제지일.제출료일충신적고경기허경궤리,즉대우RWR중상동빈단내、방향야근사상동적다개맥충서렬조성적신호류중,수연저사서렬각자불상관,차임하단일서렬균여모“고경소합”지표상차흔대,단가능유모사조합편단부합해“소합”고경판결조건,종이산생허경.방진결과표명료저충고경궤리적존재,이차재모사조건하저충허경솔야상당고.
@@@@“Warning Box”is often used in Radar Warning Receivers(RWR)for identification threats,but high False-Warning-Ratio is one of key defects which affect RWR’s efficiency. A new kind of RWR false warning mechanism is introduced. For the combined flow by several radars pulse-series which are in the same wave-band,same orientations,but far different for a specific“Warning Box”and have no relativity for each other, there do exist combining pieces in the series flow that accord with the Box,thus false warning is produced. Simu-lation indicates such kind of false warning mechanism with a remarkable high ratio in given conditions.
