Digital modulation(or channel encoding)is the process of converting an input sequence of bits into a waveform suitable for transmission over a communication channel.Demodulation(channel decoding)is the corresponding process at the receiver of converting the received waveform into a (perhaps noisy)replica of the input bit sequence.
数字调制(或信道编码)是将比特输入序列转换为适于在通信信道上传输的波形的过程。解调(信道解码)是将接收到的波形转换为输入比特序列的(可能是噪声)副本的接收波形的相应处理过程。
电子调制(或者信道编码)是将输入的比特序列转化为可以通过通讯渠道传输的波段的过程。解调制(指着信道解编码)是将收到的波段转化为比特序列的副本(可能是杂音)的相对过程。
数字调制技术?