Implementation of the SDR beamformer system on a digital signal processor
Jeich Mar, You-Rong Lin, Guan-Chiun Chen, Chun Hsiang Chou, Yu‐Lin Su · 2005
A 16-beam with equal beamwidth software defined radio (SDR) beamformer system is realized on a digital signal processor (DSP). The SDR beamformer system consists of digital multi-beam (DMB), direction of arrival (DOA), and antenna nulling modes. The general formulas for the beam patterns of the auxiliary array antenna with equal beamwidth are derived. An antenna nulling mode with an adjacent auxiliary array antenna is used as an example to compute the weight coefficient and to demonstrate the characteristics of nulling pattern.