不同定点FFT算法的性能比较，适合于OFDM信道估计FFT算法-Different fixed-point FFT algorithm performance comparison for channel estimation in OFDM FFT algorithm

有信道编码，调制，信道估计等，构成不同频率的调制信号，有PMUSIC 校正前和校正后的比较。- Channel coding, modulation, channel estimation, Constituting the modulated signals of different frequencies, A relatively before correction and after correction PMUSIC.

自写曲率计算函数 ,有信道编码，调制，信道估计等，比较了软阈值，硬阈值及当今各种阈值计算方法。- Since writing the curvature calculation function, Channel coding, modulation, channel estimation, Comparison of soft threshold and hard threshold and today various threshold calculation method.