|| EXTENDED NESTED ARRAYS FOR CONSECUTIVE VIRTUAL APERTURE ENHANCEMENT
||Shiwei Ren, Wentao Dong, Xiangnan Li, Weijiang Wang, Xiaoran Li, Beijing Institute of Technology, China|
|Session||SAM-10: Sparse Array Design and Processing|
|Session Time:||Friday, 11 June, 13:00 - 13:45|
|Presentation Time:||Friday, 11 June, 13:00 - 13:45|
|| Sensor Array and Multichannel Signal Processing: [SAM-DOAE] Direction of arrival estimation and source localization|
|| Click here to watch in the Virtual Conference
|| In this letter, we propose an extended nested array (ENA) strategy, which relaxes the constraints on the two-side subarrays of the augmented nested array and allows the sensors further placed from the sparse uniform linear array. To guarantee the continuity of the difference co-array (DCA), several conditions are provided for specific design. Based on these rules, two ENAs, referred to as one-side extended nested array (OS-ENA) and two-side extended nested array (TS-ENA), are developed. The DCAs of both the OS-ENA and TS-ENA are hole-free and possess more consecutive lags than the existing nested-like arrays. Simulations verify the superiorities of the proposed ENAs with the spacial smoothing MUSIC algorithm used.