光电雷达红外调制检测技术

发布时间：2018-06-13 18:02

本文选题：光电雷达 + 红外调制　；参考：《应用光学》2017年03期

【摘要】：因红外调制检测技术用于检测扫描积分型光电雷达调制器的工作性能,为此设计一套与调制器固有属性匹配的光学传递和激光准直系统。运用标准伺服控制理论为调制脉码信号建立Ⅲ型条件稳定的轴系扫描模型,通过截获、跟踪视场切换及驱动电压调幅,使模拟红外汇聚的激光扫描光束与3°×3°、40′×40′十字靶标重合,计量扫描视场及零位精度偏差,采集标定反射镜振动位置和扫描频率的过零脉冲,用以实现红外信号调制性能的检测。测试结果表明,该红外调制检测技术对调制器扫描视场的精度测量优于0.5′(1σ),零位误差的精度测量不大于5′(1σ),系统检测的相对误差不大于±1%,满足光电雷达红外光轴瞄准线工艺装配的精度要求,可应用于线列扫积型调制器的性能检测。
[Abstract]:Because the infrared modulation detection technology is used to detect the performance of the scanning integrated photoelectric radar modulator, a set of optical transmission and laser collimation system is designed to match the intrinsic properties of the modulator. The standard servo control theory is used to set up a three type condition stable axis scanning model for the modulated pulse code signal, and the field of view is tracked through interception. Switching and driving voltage amplitude modulation make the laser scanning beam of analog infrared converging with 3 * * 3 degrees, 40 'x 40' cross target, measure the scanning field of view and zero precision deviation, collect the zero crossing pulse for calibrating the vibration position and scanning frequency of the reflector, so as to realize the detection of the infrared signal modulation performance. The test results show that the infrared modulation is used. The measurement technique is superior to 0.5 '(1 sigma), the accuracy of zero error is not more than 5' (1 sigma), and the relative error of the system detection is not more than 1%. It can meet the precision requirements of the infrared optical axis sight line process assembly of the photoelectric radar, and can be applied to the performance detection of the line scan modulator.
【作者单位】：江苏金陵机械制造总厂;
【基金】：军内科研项目资助
【分类号】：TN958

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