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本文从单脉冲体制导引头测角精度出发,分析了接收机各通道相移(和路通道、差路通道、调制器、视频通道)对测角精度的影响。从而得出了各通道相移与测角介调输出间的定量关系式,最后列出了各通道单独相移及组合相移存在时,角信息输出的表达式。通过相移对测角影响的分析,可以了解在单脉冲雷达接收机中减小各通道相移的重要性,也可以依据实际系统中存在的相移源的大小,采取相应的措施有效地减小相移。本文为这种实际调整提供浮浅的依据。
In this paper, based on the measurement accuracy of single-pulse system seeker, the influence of phase shift (sum channel, difference channel, modulator and video channel) on the accuracy of measurement is analyzed. The quantitative relationship between the phase shift of each channel and the angular modulation output is obtained. Finally, the expression of angular information output when individual phase shifts and combined phase shifts exist in each channel is obtained. Through the analysis of the effect of phase shift on the goniometry, we can understand the importance of reducing the phase shift of each channel in a monopulse radar receiver, and also can take effective measures to reduce the phase shift in the actual system based on the size of the phase-shift source Small phase shift. This article provides a superficial basis for this practical adjustment.