arctan

基本解释

Based on noncoherent DLL and arctan carrier PLL, the curves of tracking errors in general forms are given after a series of computing and simulation.
基於非相關早減遲延時鎖定環和反正切載波跟蹤環,得出了由一般形式的誤差解析表達式導出的碼相和載波相位跟蹤誤差曲線。
This is alpha version, availiable under GPL licence.Addtion, Division, Multiplication, sqrt, Ln, Exp, sin, cos, tan, arcsin, arccos, arctan and factorial are implemented.
這有個高精度計算的函數運算輔助單元，希望對你有幫助： Calculations with float numbers of unlimited precision.
Because the CORDIC algorithm can change the arctan function and round of angle to addition and shift operation, the novel model presented in the paper can complete frequency offset estimation and correction in digital field in the same time.
由於CORDIC算法能把複襍的反正切函數求解和角度鏇轉操作轉化爲簡單的移位和加法操作,文中所給出的同步模型可在數字域同時完成頻率偏移估計和頻率偏移校正。
arctan function
反正切函數

arctangent: the function the value of which for a given argument is the angle in radians (between /2 and /2) the tangent of which is that argument: the inverse of the tangent function