基于Frank补码的MIMO雷达

MIMO Radar Based on the Frank Complementary Code

多输入多输出雷达采用多个发射天线发射独立信号,多个天线接收回波信号,对回波信号进行分离,相当于形成一个大的虚拟阵列。通过发射波形的设计可以提高M IMO雷达性能。伪随机编码容易构造,但具有较高的互相关和自相关旁瓣的缺点。Frank补码序列具有良好的相关特性,其距离旁瓣较低,可用于目标成像。

Multiple-Input Multiple-output radar uses multiple antennas to simultaneously transmit orthogonal or non-coherent waveforms and it uses multiple receiving antennas to receive and separate the reflected signals,which is equivalent to forming a huge virtual array.By optimizing the transmission waveforms the performance of radar can be improved.Pseudo random codes are easy to construct,but it has drawbacks of high cross correlation and auto-correlation sidelobes.The Frank complementary code sequence has better correlation properties and can generate lower range sidelobes,which can be used in target imaging.