Movement compensation is the key technique in synthetic aperture sonar(SAS) imaging, and it is normally realized in SAS system by the cross correlation of the raw echo data of multiple-receiver.
The receiver employs a multiple differential detector (MDD) which exploits the correlating characteristics of the signals.
为了有效地利用信号中相关特性的信息,接收机采用了一个多重差分检测器(MDD)。
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The MIMO systems use multiple antennas at both the transmitter and receiver to transmit signal in the same frequency band at the same time can significantly increase the channel capacity.