基于多路并行DDS的快跳频信号发生器设计实现  

Design and implementation of coherent FFH generator based on multiple parallel DDS

作　　者：倪宣浩 丛彦超 武春飞 Ni Xuanhao;Cong Yanchao;Wu Chunfei(School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China;China Academy of Launch Vehicle Technology,Beijing 100076,China)

机构地区：[1]北京理工大学信息与电子学院,北京100081 [2]中国运载火箭技术研究院,北京100076

出　　处：《电子技术应用》2018年第11期94-98,共5页Application of Electronic Technique

摘　　要：针对新型干扰功率大、频带宽、样式多等特点,采用相干快跳频体制可提高无线通信系统抗干扰能力。为满足相干快跳体制中跳频信号载波相位严格连续的需求,基于多路并行的直接频率合成(DDS)技术,利用FPGA+DAC的硬件平台,设计并实现了一种快跳频信号发生器,并通过实际测试,验证了其性能特性符合设计需求。For the new types of features of interference such as large interference power,wide frequency band and many styles,the adoption of a coherent fast frequency hopping system can improve the anti-interference ability of wireless communication systems.In order to meet the strict continuous requirement of frequency-hopping signal carrier phase in a coherent fast-hop system,a fast frequency hopping(FFH)signal generator is designed based on multi-channel parallel direct frequency synthesis(DDS)technology.Also,the generator is implemented by using a hardware platform with FPGA and DAC.The actual examination verifies that the performance characteristics meet the design requirements.

关 键 词：相干快跳频 相位连续 多路并行DDS FPGA 

分 类 号：TN914.4[电子电信—通信与信息系统]