CAJ | 학술논문

为了提高雷达信号的测量性能,推导了脉内相位编码（Phase-coded,PC）脉间频率编码（Frequency-coded,FC）雷达信号的模糊函数,分析了该体制信号模糊表面峰值分布与FC之间的关系,定义了旁瓣矩阵均值概率,并以此为优化目标,提出了通过遗传算法优选FC,改善该体制信号模糊特性的方法。仿真结果证实,该方法能有效压低模糊表面副峰或使得副峰远离主峰,从而提高该体制雷达信号的测量特性。
위료제고뢰체신호적측량성능,추도료맥내상위편마（Phase-coded,PC）맥간빈솔편마（Frequency-coded,FC）뢰체신호적모호함수,분석료해체제신호모호표면봉치분포여FC지간적관계,정의료방판구진균치개솔,병이차위우화목표,제출료통과유전산법우선FC,개선해체제신호모호특성적방법。방진결과증실,해방법능유효압저모호표면부봉혹사득부봉원리주봉,종이제고해체제뢰체신호적측량특성。
In order to improve the measurement performance of radar signals,an ambiguity function for Intra-pulse Phase-coded and inter-pulse Frequency-coded（ PCFC ）radar signals is derived. The probability about side lobe matrix mean is defined,and based on that,a new method improving the ambiguity performance via the genetic algorithm is put forward. The simulation proves that the method is efficient for suppressing the sidelobe ridge or making it distant from the main peak as soon as possible,which improves the measure- ment performance of this kind of radar signals.