现代通信对抗系统中的直接变频技术  

Direct Conversion Technology for Modern Communication Countermeasures System

作　　者：方青松[1] 张向杰[1] 戴兴龙 杨大鹏[1] 

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314033 [2]总参四部驻杭州地区军代室,浙江嘉兴314033

出　　处：《通信对抗》2008年第3期43-45,共3页Communication Countermeasures

摘　　要：干扰频谱带宽是衡量现代通信对抗系统性能的一项关键指标。采用直接变频技术，有效拓宽现代通信对抗系统干扰机的瞬时干扰带宽至300MHz，同时灵活产生多个目标干扰信号，有助于提升系统综合对抗能力，也为今后可重构硬件平台的建立打下坚实基础。The spectrum bandwidth of jamming signals is a key technical specifcation for the evaluation of performance of modern communication countermeasures system. Using direct conversion technology, the instantaneous jamming bandwidth of the jammer included in the modern communication countermeasures system can be extended effectively to 300MHz and mukiple target jamming signals can be simultaneously generated to enhance the integrated jamming capabihty of the system, thereby founding the solid basis for the reconfigurable hardware platform.

关 键 词：直接变频 正交调制 误差分析 载波抑制 边带抑制 

分 类 号：TN975[电子电信—信号与信息处理] TN929.5[电子电信—信息与通信工程]