作业帮英语翻译In the model of a digital communication system described
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英语翻译
In the model of a digital communication system described in Section 1.1,we recall that the transmitter building blocks consist of the discrete-input ,discrete-output channel encoder followed by the modulator .The function of the discrete channel encord is to introduce,in a controlled manner,some redundancy in the binary information sequence ,which can be used at the receiver to overcome the effects of noise and interference encountered in the transmission of the signal through the channel.The encoding process generally involves taking k information bits at a time and mapping each k-bit sequence into a unique n-bit sequence,called a code word.The amount of redundancy introduced by the encoding of the date in this manner is measured by the ratio n/k.The reciprocal of the ratio,namely k/n,is called the code rate.
In the model of a digital communication system described in Section 1.1,we recall that the transmitter building blocks consist of the discrete-input ,discrete-output channel encoder followed by the modulator .The function of the discrete channel encord is to introduce,in a controlled manner,some redundancy in the binary information sequence ,which can be used at the receiver to overcome the effects of noise and interference encountered in the transmission of the signal through the channel.The encoding process generally involves taking k information bits at a time and mapping each k-bit sequence into a unique n-bit sequence,called a code word.The amount of redundancy introduced by the encoding of the date in this manner is measured by the ratio n/k.The reciprocal of the ratio,namely k/n,is called the code rate.
在1.1章里所描述的数字通信例子中,我们复习了由发射器模版构成的离散式输入输出通道,它与调幅器相连.离散信号通道的功能,在关于控制方式上,是引进二进制的冗余,在接收器中它是用来克服噪声影响以及信号在传送时遇到的干扰.
编程处理时候通常包含没时间接受的字节容量,以及将k比特转化为n字节?即代号文字.以这种方式被编码的数据的冗余是用来测量n-k的比率.其倒数即编码比率
晕死~~累啊.
编程处理时候通常包含没时间接受的字节容量,以及将k比特转化为n字节?即代号文字.以这种方式被编码的数据的冗余是用来测量n-k的比率.其倒数即编码比率
晕死~~累啊.
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