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AD6 6 2 0是美国AD公司推出的功能强大的数字下变频信号处理器 ,本文提出了一种基于该芯片设计的中频数字正交解调方案 ,实验结果表明该方案结构简单 ,易于实现 ,且精度高、误差小。
AD6 6 2 0 is a powerful digital down-conversion signal processor introduced by American AD Company. In this paper, an intermediate frequency digital orthogonal demodulation scheme based on this chip is proposed. The experimental results show that this scheme is simple in structure and easy to implement. High precision, small error.