| 摘要: |
| 研究了一种新的旋转干涉仪测向解模糊算法。首先分析了旋转干涉仪测向时的相位差
变化规律，然后针对Ka频段雷达信号在使用旋转干涉仪测向时相位差变化大的问题，建立了
进行两次修正的解模糊算法。该方法硬件实现结构简单，易应用于被动导引头中。通过计算
机仿真验证算法的稳定性，结果表明，当信噪比高于-8 dB时，解模糊成功率超过90%。 |
| 关键词: Ka频段雷达信号 旋转式干涉仪 测向 解模糊 被动导引头 |
| DOI： |
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| 基金项目: |
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| A new method for ambiguity solving based on rotary interferometer |
| HE Ming,LI Yun-hao,TANG Bin |
| () |
| Abstract: |
| Based on rotary interferometer, an approach for phase difference measu
rement and ambiguity solving is presented. First the changes of phase d
ifference are analyzed when using a rotating interferometer to find direction, t
hen aiming at
the problem that for Kaband radar signals the phase difference becomes great
er when using a rotating interferomet
er to find direction, twice modified ambiguity solving algorithm is established.
Adopting this method, the hardware structure is easy to be achieved in the pass
ive seeker. According to the simulation result, probability of ambiguity solv
ing is better than 90% when SNR (SignaltoNoise Ratio) is above -8 dB. |
| Key words: Ka band radar signal rotary interferometer direction finding ambiguity solving passive seeker |
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