采用数字方法实现宽带线性调频信号产生

Generation of Wideband LFM Waveforms via Digital Method

介绍一个采用数字方法实现的UHF波段宽带线性调频信号产生系统的设计。在研究两种主要线性调频信号数字生产方法的基础上 ,依据波形存储直读法 ,提出了一种宽带线性调频信号产生方案 ,深入探讨了系统实现的关键技术 ,并进行了系统实现和测试。测试结果表明 ,所提出的方法是可行的。

In this paper, the digital generation methods and their implementation techniques for wideband LFM radar signals are introduced. On basis of the study of two main digital methods for LFM waveform generation, a generation scheme for wideband LFM waveforms is presented according to the waveform storage method. Then, the key techniques in digital generation are discussed in detail. An experimental system has been implemented and tested. The results show that the scheme is feasible.