基于六端口技术的FMCW雷达  

FMCW Radar Based on the Six-port Technology

作　　者：杨健[1] 刘发林[1] 

机构地区：[1]中国科学技术大学电子工程与信息科学系,合肥230027

出　　处：《现代雷达》2005年第10期23-26,共4页Modern Radar

摘　　要：研究了六端口测相位的基本方法,给出了六端口的构成,并把六端口作为直接变频接收机应用在FMCW雷达中,给出了其测速测距的原理。六端口雷达与传统的超外差式雷达相比,结构简单,便于集成,成本低。系统流程和模拟测量结果表明六端口雷达测量过程简单,测量精度高。A method of phase measurement based on six-port discriminator is studied and the structure of six - port is proposed. The operating principle of the six-port as a direct conversion receiver in FMCW radar is discussed. Compared with conventional super heterodyne radar, it presents several advantages such as reduced system complexity, allowing a higher level of circuit integration and low cost. System flow is given and simulation measurement is made which proves the simplicity of measurement process and the high accuracy of measurement results.

关 键 词：六端口技术 FMCW雷达 多普勒频率 反射系数 直接变频接收机 

分 类 号：TN958[电子电信—信号与信息处理]