CAJ | 학술논문

准连续波雷达是一种低截获概率雷达，结合了脉冲雷达收发隔离和连续波雷达截获概率低的优点，但其检测性能的优劣很大程度依赖于信号形式，普通的编码信号和线性调频信号已经不能满足其对目标探测的要求。为解决这个问题，设计了一种三频段信号和与之相应的收发系统，对系统结构及三频段信号的参数选择原则、目标检测原理、模糊函数、抗近距离盲区性能做了详细分析，并指出了三频段信号相对于相位编码信号和分时发射信号的优势所在，最后通过仿真证明，将三频段信号应用于准连续波体制雷达中时能准确探测目标，得到目标的各个参数并且能有效消除近距离盲区。
준련속파뢰체시일충저절획개솔뢰체，결합료맥충뢰체수발격리화련속파뢰체절획개솔저적우점，단기검측성능적우렬흔대정도의뢰우신호형식，보통적편마신호화선성조빈신호이경불능만족기대목표탐측적요구。위해결저개문제，설계료일충삼빈단신호화여지상응적수발계통，대계통결구급삼빈단신호적삼수선택원칙、목표검측원리、모호함수、항근거리맹구성능주료상세분석，병지출료삼빈단신호상대우상위편마신호화분시발사신호적우세소재，최후통과방진증명，장삼빈단신호응용우준련속파체제뢰체중시능준학탐측목표，득도목표적각개삼수병차능유효소제근거리맹구。
A low probability of intercept( LPI) radar, quasi-continuous wave radar integrates the advanta-ges of transceiver isolation of pulse radars and low LPI of continuous wave radars, but its detection per-formance largely depends on the signal form. Ordinary coded signal and LFM signal can not satisfy the re-quirement for target detection, so a three frequency ranges signal and the corresponding transceiver system are designed. The system structure and the parameter selection principle of three frequency ranges signal, target detection principle, fuzzy function, close-blind area resistance are analyzed in detail, and the supe-riority of three frequency ranges signal relative to the phase coded signal and time-sharing signal is pointed out. Simulation demonstrates that the performance of target detection is improved and close-blind area is e-liminated, when three frequency ranges signal is applied to the quasi-continuous wave radar system.