四进制,以4为基数,用0,1,2,3表示的一种计算实数的一种进制。因其具体算法为逢四进一,故而得名。
四进制的 [数] quarternary
四进制增益 quaternary gain
四进制数 [数] quaternary number
四进制双正交键控 Quadruple Bi-Orthogonal Keying ; Quaternary Bi-Orthogonal Keying
四进制只读存储器 quaternary read only memory ; [计] quaternary ROM
四进制乘法 [数] quaternary multiplication
四进制群 [数] quaternary group
四进制移相监控 Quaternary Phase Shift Keying ; QPSK
和四进制移相键控 Quadrature Phase Shift Keying ; QPSK
四进制信号 quaternary signal
本文详细介绍了四进制pwm光纤通信系统相位抖动的分析方法。
This paper describes in detail the method to analyze the Phase jitter in the four-level PWM fibre optic communication systems.
四相相移调制是利用载波的四种不同相位差来表征输入的数字信息,是四进制移相键控。
Quadrature phase shift carrier modulation is used to represent the four different phase inputs of digital information, is quaternary phase shift keying.
给出了当输入信号为等概率的四进制脉冲幅值调制(PAM)时,系统输出理论渐近误码率计算公式。
Furthermore, the expression of stationary bit error rate of system output corresponding to equiprobability quaternary pulse amplitude modulation (PAM) input signals was deduced.
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