CAJ | 학술논문

提出了一种提高时间分辨率取样积分器稳定性的平衡取样法。利用平衡混频器能够消除本振噪声的原理，将两个单二极管取样门接成对称结构，由一个取样门脉冲控制，通过差分放大消除取样脉冲、偏置电压和二极管参数等变化引起的基线漂移，提高了取样积分器的稳定性。同时，在基于取样积分器的近距离冲激雷达中，可以大大提高接收机的灵敏度和目标检测概率。
제출료일충제고시간분변솔취양적분기은정성적평형취양법。이용평형혼빈기능구소제본진조성적원리，장량개단이겁관취양문접성대칭결구，유일개취양문맥충공제，통과차분방대소제취양맥충、편치전압화이겁관삼수등변화인기적기선표이，제고료취양적분기적은정성。동시，재기우취양적분기적근거리충격뢰체중，가이대대제고접수궤적령민도화목표검측개솔。
This paper presents the balanced sampling-a way to promote thestability of high time resolution sampling integrator.The balanced mixer has the property of eliminating the local oscillation,so based on this princple,two single diode sampling circuits controlled by one sampling impulse are linked symmetrically.Through differencing amplifier,the datum line drift caused by the change of impulse,biase as well as diode is eliminated,and thus the stability of sampling integrator is promoted.Besides,in short-distance impulse radar based on sampling integrator,the method can greatly increase the sensitiviy and target-inspecting rate of receiver.