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应用上篇中所叙述的离散时间模拟置乱技术,置乱有限带宽的连续时间信号或波形,波形置乱器的思想,是以超过奈奎斯特(Nyqurst)速率的取样率对波形(设它是有限带宽的)进行采样,产生的样点序列,就上篇的意思来说是有限带宽的,对这个序列应用上篇中所叙述的离散时间置乱器,则产生一个几乎是有限带宽的置乱序列,一个置乱的波形是通过调制一系列脉冲的幅度而形成的,可以在一有限带宽的信道上传输,接收机可将其恢复成原来的未置乱波形。
Using the discrete-time simulation scrambling technique described in the previous section, the idea of scrambling the continuous-time signal or waveform of finite bandwidth, the waveform scrambler, is based on sampling at a Nyquist rate It is of limited bandwidth) to sample and produce a sample sequence of finite bandwidth in the sense of the previous article, applying the discrete-time scrambling device described in the previous paragraph to this sequence to produce an almost finite bandwidth Of scrambling sequences, a cluttered waveform is formed by modulating the amplitude of a series of pulses, transmitted over a limited bandwidth channel, and the receiver recovers it to its original undisturbed waveform.