A quaternary amplitude shift keying modulator for suppressing initial amplitude distortion
A quaternary amplitude shift keying modulator for suppressing initial amplitude distortion
复制标题
抑制初始幅度失真的四进制幅移键控调制器
DOI：
10.1109/jlt.2004.824465
复制
发表时间：
2004
影响因子：
4.7
通讯作者：
Katsumi Iwatsuki
中科院分区：
文献类型：
--
作者：
Takuya Nakamura;Jun;Mitsuhiro Teshima;Katsumi Iwatsuki
提出了一种抑制传输中4ASK信号幅度失真的四值幅度移相键控(4ASK)调制电路。通过数值计算对该电路的性能进行了定量验证，并与传统电路进行了比较。文中还证明了该电路在Nb酸锂衬底上集成的可行性：成功地抑制了幅度失真，传输的4ASK信号的最小灵敏度比传统电路提高了1.7d B。
This paper proposes a quaternary amplitude-shift-keying (4ASK) modulation circuit that suppresses amplitude distortion of the transmitting 4ASK signal. The performance of the proposed circuit is quantitatively verified through numerical calculation in comparison to a conventional alternative. The feasibility of the proposed circuit as integrated in a lithium niobate substrate is also demonstrated: the suppression of amplitude distortion is successfully demonstrated and minimum sensitivity of the transmitted 4ASK signal is 1.7 dB better than that offered by the conventional circuit.