FPGA中反正弦函数的实现方法

Implementation method of arcsine function in FPGA

描述了一种基于FPGA利用VHDL实现的反正弦函数计的优化算法。在数字信号处理领域,高速高精度的反正弦函数发生器有着广泛的应用。讨论了CORDIC算法和直接LUT查找表法缺点,提出一种新的优化LUT查找表算法。该算法能够在FPGA中实现,并且经软件仿真和硬件验证,达到了设计要求。

An optimization algorithm of arcsine function in use of VHDL based on FPGA was studied.In the field of digital signal processing,high-speed and high-precision arcsine function generator has a wide range of applications.Disadvantages between the CORDIC and the direct LUT are discussed and a new optimized LUT is proposed.The algorithm could be implemented in FPGA and it met design requirements tested by software simulation and hardware.