A Wideband DDC Design Using Distributed Arithmetic
Ji Hong Yan, Zi He, Xiao Hong Tang, Dao Guo Yang · Applied Mechanics and Materials · 2013
In this paper, the technique of distributed arithmetic (DA) and digital down conversion (DDC) are described. Then, an efficient wideband DDC based on polyphase structure with intermediate frequency (IF) bandpass sampling is presented. An optimized distributed arithmetic is used for saving the FPGA multiplier consumption. A design example is given and the FPGA resource consumption saving is discussed also. The corresponding test results demonstrate the effectiveness of the proposed DDC design using distributed arithmetic.