【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。更多还原

【Abstract】 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.更多还原