摘要
本文从脉冲雷达工作时序的应用需求出发,介绍了一种可调多脉冲任意时序发生电路的数字化设计。该系统通过采用单片机与CPLD技术有机结合的全数字电路设计,实现脉冲宽度从0.1μs至1ms、脉冲周期从1μs至1s的大范围、高精度任意连续可调,设置输出的时序波形准确、稳定、可靠,脉冲参数调节简便、直观,可以实现多脉冲波形的各脉冲宽度、时延、频率等参数的独立调节,并针对干扰环境所采取的电磁兼容设计考虑进行了介绍和说明,最后还提供了实际的测试波形和应用举例。
In order to meet the need of the pulse radar applied sequence, this paper presents of one adjustable multi-pulse generator by digital circuit design. By combining one-chip microcomputer and CPLD digital circuit design technologies, the system realizes large-scale and high-precision discretionary adjustment which for pulse-width from0. 1μs to 1ms and pulse-period from 1μs to ls. The output setting waveforrn sequence is precise, steady and credible. The operation of solely setting multi-pulse parameter including pulse-width, pulse-delay and pulse-frequency is simple and intuitionistic. The design consideration of electromagnetic compatibility special for strong interference environment is also introduced. And some practical test waveforms and application example are given in the end.
出处
《电子测量技术》
2009年第8期28-31,40,共5页
Electronic Measurement Technology
