【摘要】 ＰＤ雷达高度表是利用ＰＤ雷达的测距测速能力来实现测高功能的。简要描述了ＰＤ雷达高度表的工作原理，介绍了采用双模工作方式的雷达高度表数字信号处理机的工作原理和信号处理流程。给出了信号处理机的原理框图及部分部件实现的技术指标，重点介绍了各部件尤其是数字信号处理部件硬件功能的设计特点，并给出了它们的测试性能。更多还原

【Abstract】 This paper mainly discusses the design principle of the signal processor for PD radar al-timeter and its specifications.First,it describes concisely the operational ptinciple of the PD radar altimeter,then a dual-mode digital signal processor is introduced ,and the signal processing flow chart is also discussed.This dual-mode processing method provities a wide range of measuring height and good performance to meet the radar sysrtem requirements.更多还原