A Method of Improved Broadband Beamforming and Implementation on FPGA
In this paper, we presented an improved approach to design a broadband beamforming in time domain and its architecture on FPGA. The FIR digital filter with rigid linear phase was obtained by linearly constrained LMS algorithm. An iterative algorithm was used to enhance the performance of the FIR digital filter through adaptively optimizing cost function according to amplitude error function. Simulational and experimental results based on FPGA for a 10-element uniform linear array showed that the adaptive algorithm proposed in this paper was effective, can satisfied the real time requirement of underwater high speed signal processing. Moreover, this beamforming method was valuable in practical engineering in sonar systems, and can be applied to arbitrary array.
Shao Jie Ye Ning
College of Information Science and Technology Nanjing University of Aeronautics & Astronautics Nanji Dept. of Information Science Nanjing College for Population Programme Management Nanjing, 210042, Ch
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
574-578
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）