【摘要】 在实际的相位生成载波(简称PGC)解调输出中,直流漂移会使解调结果产生失真.为此,对其影响进行了理论分析,并对分析的结论进行了仿真验证,研究了实际数字化实现PGC解调原理中消除这种影响的方法.结果证明,用软件算法和硬件高通滤波电路都可以有效地降低直流漂移的影响.更多还原

【Abstract】 In the practical phase generated carrier(PGC) demodulation outputs,the direct current(DC) drift can distort the demodulation results.The effects of the DC drift to the PGC demodulation results are analyzed theoretically in detail,and a method is proposed to eliminate these effects in the real digital PGC demodulation scheme.The results show that the effects of the DC drift can be decreased effectively either by software algorithm or hardware high pass circuits.更多还原