中文摘要：

针对雷达在现代电子战争中采用简单调制的电磁波信号容易被远距离的敌方电子侦察设备截获的问题，提出了一种线性调频和Taylor四相码的组合调制雷达信号，通过理论分析和计算机仿真，给出了信号的波形，画出了模糊图，分析了距离分辨力、速度分辨力和低截获特性，结果表明该信号具有线性调频和Taylor四相码2种信号的优点，是一种具有“图钉”型模糊函数的低截获概率信号．

英文摘要：

A hybrid radar signal composed of linear frequency modulation （LFM） and Taylor quadriphase coded signal was presented, in point of the question that the simply modulated radar signals can be easily intercepted by electronic reconnaissance equipment of the distant enemy in modern electronic war. By the theoretical analysis and computer simulation, several.characteristics of radar signal have been discussed, such as waveform, ambiguity graph, the distance resolution, the velocity resolution and the low intercept factor of hybrid signal. The results show the signal has the advantages of LFM and quadriphase coded signal. It＇s a LPI signal with the “thumbtack” ambiguity function.