Because a sparse array has the advantages of a simplified structure and reduced cost in a radar system, radar technology based on the sparse array has gained widespread attention. To take advantage of the sparse array, in this paper, we designed a Multi-Resolution Composite digital Array antenna (MRCA), and then used it in single-target and multi-target detection experiments. Using the same number of array elements, our experimental results demonstrate that the MRCA can obtain a narrower main lobe and a lower side lobe, enhances the direction of the array antenna, and improves the angular resolution compared with the uniform linear array.
王峰, 李婧, 刘俊, 等. 宽带数字阵雷达数字波束形成系统研究[J]. 雷达学报, 2013, 2(3): 314-318. Wang Feng, Li Jing, Liu Jun, et al.. System realization of broadband digital beam forming for digital array radar[J]. Journal of Radars, 2013, 2(3): 314-318.
[2]
李学仕, 孙光才, 邵鹏, 等. 基于数字阵列雷达的同时多模式SAR成像体制研究[J]. 雷达学报, 2014, 3(4): 480-489. Li Xue-shi, Sun Guang-cai, Shao Peng, et al.. Investigation on multimode SAR imaging based on digital array radar[J]. Journal of Radars, 2014, 3(4): 480-489.
[3]
Yiu S, Vu M, and Tarokh V. Interference and noise reduction by beamforming cognitive networks[J]. IEEE Transactions on Communications, 2009, 57(10): 3144-3153.
[4]
Luan Tian-xiang, Gao Fei-fei, Zhang Xian-da, et al.. Rate maximization and beamforming design for relay-aided multiuser cognition networks[J]. IEEE Transactions on Vehicular Technology, 2012, 61(4): 1940-1945.
[5]
Cumanan K, Musavian L, Lambotharan S, et al.. SINR balancing technique for downlink cognitive radio networks[J]. IEEE Signal Processing Letters, 2010, 17(2): 133-136.
[6]
胡航, 邓新红. 子阵级平面相控阵SDBF的旁瓣抑制技术方法[J]. 电科科学学报, 2008, 23(1): 201-205. Hu Hang and Deng Xin-hong. Sidelobe suppression method for ADBF at subarray level with plannar phased array[J]. Chinese Journal of Radio Science, 2008, 23(1): 201-205.
[7]
侯颖妮, 李道京, 尹建凤, 等. 基于稀布综合孔径天线的艇载成像雷达研究[J]. 电子学报, 2008, 36(12): 2377-2382. Hou Ying-ni, Li Dao-jing, Yin Jian-feng, et al.. Airship imaging radar based on aperture synthesis of thinned array[J]. Acta Electronica Sinica, 2008, 36(12): 2377-2382.
[8]
Welsby V G and Tucker D G. Multiplicative receiving arrays[J]. Journal of the British Institution of Radio Engineers, 1959, 19(6): 369-382.
[9]
MacPhie R H and Yoon T H. Grating lobes suppression with a thinned multiplicative receiving array[C]. Asia-Pacific Microwave Conference Proceedings, Suzhou, China, 2005: 3-4.
[10]
MacPhie R H. A mills cross multiplicative array with the power pattern of a conventional planar array[C]. IEEE Antennas and Propagation Society International Symposium, Honolulu, HI, USA, 2007: 5961-5964.
[11]
Xu L, Song Q, Li C, et al.. Nulling antenna realisedutilising a concept of multiplicative array[J]. Electronics Letters, 2012, 48(1): 8-10.
[12]
Stange L C, Metz C, Lissel E, et al.. Multiplicatively processed antenna arrays for DBF radar applications[J]. IEE Proceedings-Microwaves, Antennas and Propagation, 2002, 149(2): 106-112.
[13]
Li D J, Hou Y N, and Hong W. The sparse array aperture synthesis with space constraint[C]. EUSAR 2010, Germany, 2010: 1-4.
[14]
Tang Y and Lu Y. Multi-Resolution composite array for digital beamforming with high angular-resolution[J]. IEEE Transactions on Antennas and Propagation, 2014, 62(8): 4377-4380.
[15]
Tang Y and Lu Y. A low cost radar digital beamforming concept with single receiver[C]. Asia-Pacific Microwave Conference Proceedings, Singapore, 2011: 1622-1625.
2016, Vol. 5 
