| 1. | Pll - qpsk , phased - locked loop quadrature phase shift keying
锁相环四相相移键控 |
| 2. | Pll - qpsk phased - locked loop quadrature phase shift keying
锁相环四相相移键控 |
| 3. | Differential quadrature phase keying
差分四相相移键控 |
| 4. | Qpsk , quadrature phase shift keying
四相相移键控 |
| 5. | Qpsk quadrature phase shift keying
四相相移键控 |
| 6. | Qpsk quaternary phase shift keying
四相相移键控 |
| 7. | Quaternary phase shift
四相相移 |
| 8. | Ijf - oqpsk is actually to modulate the ijf codes by the offset quadrature phase shift keying
Ijf ? oqpsk实际上是对ijf信号再进行正交四相相移键控的调制技术。 |
| 9. | Take european dvb - s standard applied to various satellite broadcast for example , the channel coding structure charts is established . the theory of modulation mode of qpsk and forward error correct including rs coding , convolutional coding , energy dispersal and interleaving are reseached . 4
以欧洲的dvb - s适用于多种卫星广播系统的标准为例，建立了信道编码的结构图，对数字视频广播中的前向纠错(包括了rs码，卷积码、能量扩散和交织技术)和调制方式四相相移键控调制进行了研究。 |
