关键词: MIMO雷达, Frank补码, 虚拟阵列, 相关函数

Abstract:

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.

Key words: Multiple-Input Multiple-Output radar;Frank complementary code;virtual array;correlation function