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一种IFF/TACAN信号模拟的实现方法 被引量:3

An Implemention of IFF/TACAN Signals
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摘要 敌我识别信号(IFF)、塔康信号(TACAN)在电子信息领域有着广泛的应用。介绍了基于高速FPGA+DAC的硬件平台实现IFF/TACAN信号模拟的方法,采用满足不同模式信号脉冲编码的统一框架,根据直接数字频率合成(DDS)的原理,由FPGA产生载波波形数据以及不同信号类型的时域视频脉冲,控制DAC实现脉冲调制载波的生成。经过滤波放大衰减等后端处理,实现信号的模拟。经验证,由此产生的信号均能被接收系统正确识别。该方法可广泛运用于其他多种类型信号模拟的应用场景中。 The Identification of Foe or Friend (IFF) signal and TACAN signal are widely used in the field of electronic information. An implemention method of IFF/TACAN signals is intro- duced. Based on the theory of Direct Digital Frequency Synthesis (DDS) and the use of com- mon frame for different types of signal pulse coding, carrier waveform data and video pulse of different type are produced by FPGA, which are used as control for DAC to realize the modula- tion of carrier. Finally the simulation of the signals is realized after filter, amplifier and attenua- tor. The signals produced by this method are proved to be identified correctly received by the re- ceiving system. The method can be applied in more fields that different signals need to be simu- lated.
出处 《电子信息对抗技术》 2017年第4期68-72,共5页 Electronic Information Warfare Technology
关键词 IFF/TACAN FPGA+DAC DDS 信号模拟 脉冲编码 IFF/TACAN FPGA + DAC DDS signal simulation pulse coding
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