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针对某伪码调相PD引信点目标视频回波模拟器的要求,提出了基于现场可编程门阵列(FPGA)与片外精密数控可编程延时线两级延时技术的引信点目标视频回波模拟器距离模拟电路的设计及实现方案。该距离模拟电路具有调整动态范围大、精度高等特点。调试表明,该电路能够满足精密测试引信截止距离的要求。
In order to meet the requirements of video echo simulator of a phase-modulated PD fuze point in a pseudo-code, a target video return based on field programmable gate array (FPGA) and on-chip precision NC programmable delay line two-stage delay technology Design and Implementation of Wave Simulator Distance Analog Circuit. The distance analog circuit with adjustable dynamic range, high accuracy and so on. Debugging shows that the circuit can meet the requirements of precision test fuze cut-off distance.