中文说明：偏移四相移相键控调制，也就是OQPSK，输出信号为OQPSK调制信号的复包络-Offset four-phase phase shift keying modulation, that is, OQPSK, the output signal for the OQPSK modulated signal complex envelope
English Description：
Offset four-phase phase shift keying modulation, that is, OQPSK, the output signal for the OQPSK modulated signal complex envelope