Provided by: International Journal of Engineering and Technology
Date Added: Jul 2014
To solve the existing problems on traditional method of calling function at ultrasonic S-scan coordinate conversion, this paper introduced the FPGA implementation of ultrasonic S-scan coordinate conversion based on Radix-4 CORDIC algorithm. On the analysis of the Radix-4 Rotation CORDIC algorithm, the authors selected 7-level pipeline structure on FPGA used the preprocessing technique to solve the non-constant problem of scale factor. The simulation results show that the maximum error of Radix-4 rotation CORDIC algorithm is 1.5×10-3 and the computing latency is only 7T at 16 bit data-width under 100MHz FPGA.