CAJ | 학술논문

DOA估计是雷达参数估计方面理论研究的一个重要内容,其主要目的是确定各个信号到达阵列参考阵元的方向角。MIMO雷达可以有效提高DOA估计分辨力和精度得到了广泛的关注,但是MIMO雷达DOA估计算法却比较复杂。因此对MIMO雷达DOA估计的几种主要算法进行了深入系统的研究,通过计算机仿真分析比较了各种不同算法的特点,得到了各种算法的优缺点和局限性,从而为正确分析和处理MIMO雷达回波信号提供依据。
DOA고계시뢰체삼수고계방면이론연구적일개중요내용,기주요목적시학정각개신호도체진렬삼고진원적방향각。MIMO뢰체가이유효제고DOA고계분변력화정도득도료엄범적관주,단시MIMO뢰체DOA고계산법각비교복잡。인차대MIMO뢰체DOA고계적궤충주요산법진행료심입계통적연구,통과계산궤방진분석비교료각충불동산법적특점,득도료각충산법적우결점화국한성,종이위정학분석화처리MIMO뢰체회파신호제공의거。
DOA estimation is significant for the theoretical research of the radar parameter estimation,which is used to make sure the direction angle that the signal arriving array elements.It is widely focused on because the MIMO radar can significantly improve the resolution and accuracy of DOA estimation.However,this algorithm is complicated so that it is very hard to process.Based on the several main algorithms of DOA estimation,the author carries out a thorough investigation.By means of the computer simulation,the author analyzes and compares the characteristic of those algorithms.And it provides the basis for analyzing and processing the echo signal of MIMO radar.