| 模拟信道离散模型的计算机辅助设计 |
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| 引用本文： | 张力军. 模拟信道离散模型的计算机辅助设计[J]. 南京邮电大学学报(自然科学版), 1987, 0(3) |
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| 作者姓名： | 张力军 |
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| 摘 要： | 本文以音频电话信道的QAM数据传输为基础,介绍如何利用FFT子程序将信道的频域幅频特性及群时延响应变换成时域冲激响应序列的方法,并给出数字信号序列及高斯白噪声的模拟方法,从而得到模拟信道的完整的离散模型。
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| 关 键 词： | 数字传输系统 计算机辅助设计 音频电话信道 |
Computer-Aided Design of Discrete Model of Analog Channel |
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| Zhang Lijun. Computer-Aided Design of Discrete Model of Analog Channel[J]. JJournal of Nanjing University of Posts and Telecommunications, 1987, 0(3) |
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| Authors: | Zhang Lijun |
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| Affiliation: | Zhang Lijun |
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| Abstract: | In this paper, based on QAM data transmission in voicefrequency telephone channel, we introduce a method that can transform the amplitude and group delay response of channel in frequency domain into the impulse response sequence in time domain by using FFT subroutine, and give the simulation method for digital signal sequence and white Gaussian noise. A complete discrete model of analog channel is obtained. |
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| Keywords: | Digital transmission system Computer-aided design Voice-frequency telephone channel |
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