The monopulse secondary surveillance radar(SSR) antenna needs sum, difference and sidelobe suppression omnidirectional channels.

单脉冲二次雷达要求天线具有和、差和副瓣抑制三个通道。

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Compared with the Primary Radar, the Secondary Surveillance Radar using the Monopulse Technology can measure the range and the azimuth of the targets more accurately.

相比于一次雷达，采用单脉冲技术的二次雷达可以更加准确的测量空中目标的距离和方位。

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