基于改进的查找表的arctan计算模块，包含完整的VHDL源代码及部分注释．绝对原创！-Arctan calculation module based on improved searching form. The rar package contains complete VHDL source code and some notes. Absolutely original!

we propose a low-cost sequential and high performance architecture for the implementation of CORDIC algorithm in two computation modes. It suited for serial operation that performs conversion between polar and rectangular coordinate systems, essentia

The first iteration rotates the vectors the second or third quadrant to the first or fourth, respectively. The shift sequence is 0,0,1, and 2. The rotation angle of the first four steps becomes: arctan(∞) = 90◦ , arctan(20) = 45◦ , arctan(2