CAJ | 학술논문

对基于相干体制的多通道电子系统如 MIMO通信、相控阵雷达、多通道侦察接收机等进行性能评估与测试一直是一个复杂、昂贵的过程，因为难以产生符合测试要求的多路相干信号。提出了一种基于矢量调制技术的宽频带相干多通道信号发生方法，分析了矢量调制器的非理想特性对多通道相干信号发生的影响，给出了解决思路。该方法具有频率覆盖范围宽、相位控制范围大、精度高、调节分辨率精细等优点，为基于相干体制的多通道接收机测试提供了一种高效便捷的信号模拟方法。
대기우상간체제적다통도전자계통여 MIMO통신、상공진뢰체、다통도정찰접수궤등진행성능평고여측시일직시일개복잡、앙귀적과정，인위난이산생부합측시요구적다로상간신호。제출료일충기우시량조제기술적관빈대상간다통도신호발생방법，분석료시량조제기적비이상특성대다통도상간신호발생적영향，급출료해결사로。해방법구유빈솔복개범위관、상위공제범위대、정도고、조절분변솔정세등우점，위기우상간체제적다통도접수궤측시제공료일충고효편첩적신호모의방법。
The performance evaluation and testing for coherent principle based multi‐channel electronic systems such as MIMO communication ,and phased‐array radar and multi‐channel reconnaissance receiver have always been complicated and expensive .Because the multi‐channel signals can be received is hard to stimulate .This paper presents a wide band phase‐coherent multi‐channel signal stimulating method based on vector modulation technique ,analyzes the influences of the vector modulator's non ideal characteristics on multi‐channel signals ,and finally gives solutions .We propose a con‐venient and efficient simulation way for phase‐coherent multi‐channel receiver testing by stimulating signals of wider fre‐quency covering range ,larger phase control range ,higher precision and finer resolution .