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PCM(pulse code modulation),脉冲编码调制是实现()的最基本最常用的一种方法
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更多 “PCM(pulse code modulation),脉冲编码调制是实现()的最基本最常用的一种方法” 相关考题
考题
Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks?()A、The three required steps in the analog to digital conversion are sampling,encoding,and compression.B、The three required steps in the analog to digital conversion are sampling,quantization,and compression.C、The three required steps in the analog to digital conversion are sampling,quantization,and encoding.D、The output of the sampling process is a pulse code modulation (PCM) signal.E、The output of the sampling process is a pulse amplitude modulation (PAM) signal.
考题
下面关于脉冲编码调制的叙述,正确的是:()A、PCM是一种将模拟信号变为数字信号的数字编码调制技术,并非是真正的调制形式B、采用PCM,脉冲是固定长度的,但幅度是可变的C、一般来说,PCM包括量化、编码二个部分D、模拟信号经PCM处理后,数据速率为64Kbps
考题
判断题脉冲编码调制(PCM)是最简单的波形编码方法。A
对B
错
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