求翻译：T 为四进制符号间隔，g(t)表示信号的包络波形，通常为矩形波，幅度值为1，为一组间隔均匀的受调制相位，是载波的4个可能的相位。QPSK信号的三个瞬时分量如图2所示：是什么意思？

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T is the fourth-symbol interval, g(t) signal envelope waveform, usually a square wave in amplitude values to 1, for a group of evenly-spaced by phases, is carrier modulation of the four possible phase. The three signal QPSK instantaneous component as shown in Figure 2:

T is the quaternary mark gap, g( the t) expression signal enveloping profile, usually is the rectangular wave, the scope value is 1, is group of gaps even is modulated the phase, is the carrier 4 possibility phases.QPSK signal three instantaneous component as shown in Figure 2:

T is a four-symbol interval, g (t) that the envelope of the signal waveform, usually rectangular, a value of 1, for a set of evenly spaced modulated phase, is the carrier of the 4 possible phases. QPSK signal of three instantaneous component as shown in Figure 2:

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