Purpose

The purpose of this paper is to design and construct an amplitude shift keying (ASK) modulator, which, using the digital binary modulating signal, controls a floating memristor emulator (MR) internally without the need for additional control circuits to achieve the ASK modulated wave.

Design/methodology/approach

A binary digital unipolar signal to be modulated is converted by a pre-processor circuit into a suitable bipolar modulating direct current (DC) signal for the control of the MR state, using current conveyors the carrier signal’s amplitude is varied with the change in the memristance of the floating MR. A high pass filter is then used to remove the DC control signal (modulating signal) leaving only the modulated carrier signal.

Findings

The results from the experiment and simulation are in agreement showed that the MR can be switched between two states and that a change in the carrier signals amplitude can be achieved by using an MR. Thus, showing that the circuit behavior is in line with the proposed theory and validating the said theory.

Originality/value

In this paper, the binary signal to be modulated is modified into a suitable control signal for the MR, thus the MR relies on the internal operation of the modulator circuit for the control of its memristance. An ASK modulation can then be achieved using a floating memristor without the need for additional circuits or signals to control its memristance.

中文翻译：

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一种内部控制的基于忆阻器的幅度移位键控调制器

目的

本文的目的是设计和构建一个幅移键控（ASK）调制器，该调制器使用数字二进制调制信号在内部控制一个浮动忆阻器仿真器（MR），而无需额外的控制电路来实现ASK调制波。

设计/方法/方法

预处理电路将要调制的二进制数字单极性信号转换为合适的双极性调制直流（DC）信号，以控制MR状态，使用电流传输器，载波信号的幅度随忆阻的变化而变化浮动MR。然后使用高通滤波器去除直流控制信号（调制信号），仅留下调制后的载波信号。

发现

实验和仿真的结果一致，表明可以在两种状态之间切换MR，并且可以通过使用MR来实现载波信号幅度的变化。因此，表明电路行为符合所提出的理论并验证了所述理论。

创意/价值

在本文中，要调制的二进制信号被修改为适合MR的控制信号，因此MR依赖于调制器电路的内部操作来控制其忆阻。然后可以使用浮动忆阻器实现ASK调制，而无需其他电路或信号来控制其忆阻器。