[Phat98] Phatak, D. S., “Double Step Branching CORDIC: A New Algorithm for Fast Sine andCosine Generation,”IEEE Trans. Computers, Vol. 47, pp. 587–603, 1998. [Taka91] Takagi, N., T. Asada, and S. Yajima, “Redundant CORDIC Methods with a ConstantScale Factor for Sine and Cosi...
Low latencyMultiplexerThis paper proposes a design of a fast FPGA based architecture for Coordinate Rotation Digital Computer (CORDIC) algorithm with reduced number of iterations. CORDIC is on such technique which uses just shift-add/sub operations. So, it widely has been used because its ...
assign cosine = x[width-1]; assign sine = y[width-1]; endmodule 参考:
具体参考:《Design of Jacobi EVD processor based on CORDIC for DOA estimation with MUSIC algorithm》 二、求解三角思路延伸 以arctan为例,迭代次数随着theta精度的增加而增加,迭代次数过多会导致时间延迟过大,因此可以考虑函数逼近的思路。常用的有泰勒逼近和切比雪夫逼近。 因为tan(45°) = 1,且tan(x/y) ...
具体参考:《Design of Jacobi EVD processor based on CORDIC for DOA estimation with MUSIC algorithm》 二、求解三角思路延伸 以arctan为例,迭代次数随着theta精度的增加而增加,迭代次数过多会导致时间延迟过大,因此可以考虑函数逼近的思路。常用的有泰勒逼近和切比雪夫逼近。
%% cordic Algorithm for Vector:y->0 %% m = 1 :(x,y,z)=(x,y,0); z = atan(y/x) ; x = (x^2+y^2)^(1/2)/scale %% m = 0 :(x,y,z)=(x,y,0); z = y/z %% m = -1 : (y<x),(x,y,z)=(x,y,0); z =atanh(y/x) ; x = (x^2-y^2)^(1/2)/scale ...
Sine/Cosine using CORDIC Algorithm Prof. Kris Gaj Gaurav Doshi, Hiren Shah Outlines Introduction Basic Idea CORDIC Principles Hardware Implementation FPGA & ASIC Results Conclusion Introduction CORDIC (COordinate Rotation DIgital Computer) Introduced in 1959 by Jack E. Volder Efficient to compute sin, ...
Abstract:The traditional CORDIC(Coordinate Rotation Computer) algorithm has many iterations, slow convergence speed, and large resource consumption for high-precision arctangent. An improved high-precision CORDIC algorithm is proposed. This method uses the traditional CORDIC algorithm to obtain the sine in...
[7] MAHARATNA K,BANERJEE S,GRASS E,et al.Modified virtually scaling-free adaptive CORDIC rotator algorithm and architecture[J].IEEE Transaction on Circits Systems for Video Technolog,2005,15(11):1463-1474. [8] HU H Y.The quantization effects of the CORDIC algorithm[J].IEEE Transactions on ...
The CORDIC algorithm is a shift-add algorithm for computing trigonometric, hyperbolic trigonometric and linear functions and their inverses. It can also be used for log, exponent and square root. Common uses are sine and cosine generation, vector magnitude, polar-cartesian conversions, and vector ...