An optimizing nested MIMO array with hole-free difference coarray
According to the newly proposed nested MIMO(Multiple-Input Multiple-Input Multiple Output Multiple Array)array design method,we propose to replace the traditional nested array into an optimizing nested array,ie,to optimizing nested MIMO array design.It not only retains the original advantage of nested MIMO array design-closed expression with array element position and degree of freedom(DOF),but also greatly improves the array aperture and DOF.Optimizing nested MIMO array firstly uses the optimizing nested array as the transmitting and receiving arrays,and then make the difference set processing for the coarray of MIMO array(coarray,CA).By properly designing the array spacing of the transmitting and receiving arrays,we can obtain a non-porous difference array.When the total number of array elements is given,by analyzing the characteristics of the array structure,the best array element number of the transmitting and receiving arrays can be obtained.Simulation experiments show that compared with the nested MIMO array design,the proposed method can effectively expand the array aperture,increase the DOF,and increase the DOA estimation accuracy of the MIMO radar without increasing the number of actual array elements.
Liu Qiaoge Wang Buhong Li Xia Tian Jiwei Cheng Tianhao Liu Shuaiqi
School of Information and Navigation,Air Force Engineering University,710077,Xian,Shaanxi,China Peoples Liberation Army 93995 troops,710306,Xian,Shaanxi,China
国际会议
上海
英文
1-6
2018-10-12（万方平台首次上网日期，不代表论文的发表时间）