能成功实现8*8的离散余弦反变换，在quartus II 环境下运行-Can be successfully realized 8* 8 discrete cosine inverse transform, running in quartus II environment

cordic向量迭代求取IQ信号幅值，及相位 反cordic求正弦、余弦值-use cordic to computer the magnitude of IQ signal and cos、sin