一种超宽带电子战测频技术的研究

Research on an ultra-wideband frequency measurement technology based on electronic warfare

摘要:

随着雷达技术的发展，宽带瞬时信号截获是信息化装备的必备功能单元。从理论和试验验证的角度详细分析了超宽带电子战接收机的工作原理、测频技术和应用场景，提出了一种简化的MonoDFT算法，实现了2GHz~18GHz频段内雷达信号辐射源的高精度频率测量，并设计了两种应用场景和实现方法。理论分析与实验表明，接收机能够实现瞬时带宽16GHz，灵敏度优于-70dBm，测频精度优于0.4MHz，延迟时间小于270ns，可广泛应用于电子战领域，具有很高的工程应用价值。

Abstract:

With the progress of radar technology, wideband instantaneous frequency measurement is a compulsory functionality of informationization equipment. In the paper the working principles and frequency measurement and application scenarios of an ultra-wideband electronic warfare receiver are studied in the terms of both theory and experiment. A simplification MonoDFT algorithm is proposed. It is realized to high-precision frequency measurement from 2GHz to 18GHz radar signal emitter. It is designed into two application scenarios and realizations. The analysis and experiment results show that the receiver can adapt to the instantaneous bandwidth 16GHz, a sensitivity more than -70dBm, frequency measurement accuracy over 0.4MHz, and a processing delay time of less than 270ns. The receiver is of high engineering application value in the electronic warfare field.