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中文摘要：
设计并实现了一种集中式数字子阵级MIMO雷达实验系统,该系统在子阵间实现正交二相相位编码信号发射,接收端实现了子阵级发射数字多波束合成与接收数字多波束合成,有效完成了对民航飞机的观测。子阵多波束与子阵正交波形发射成倍简化了系统设计复杂度,具有良好的工程应用价值,使得MIMO雷达功能可作为数字相控阵雷达的典型工作模式在数字阵中推广应用。
英文摘要：
The test bed of digital multi-input multi-output（MIMO）radar in sub-array level is developed and realized.Orthogonal binary phased shift keying signals are exploited in the subarray level.The transmit and receive digital beam-forming is implemented in the receiving channel,and the observation of civil aircraft is accomplished successfully.The complexity of system design reduces greatly with the implementation of the orthogonal transmitting wave and multi-beam techniques in subarray level,which is promising for engineering application.The MIMO radar function can be utilized as a kind of typical working mode in the digital array radar.
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