摘要
由于四相位绝对移相键控(QPSK)的调制方式在卫星通信中占有十分重要的地位,详细的分析了QPSK信号的调制与解调原理,并以此为基础,理论推导出用于QPSK干扰的3种干扰方式的误比特率(BER),这三种方式包括:连续噪声干扰,单音干扰以及指向性单音干扰。通过分析仿真,得到3种干扰方式的干扰效果,证明了干扰的有效性。
Quadrature phase shift keying modulation （QPSK） plays a very important role in the satellite communication. Based on of analyzing the principle of QPSK modulation and demodulation, the BERs of three jamming modes used for QPSK are theoretically derived, and these three modes include the continuous noise jamming, single frequency modulation jamming and pointed single frequency modulation Jamming. By analyzing the simulation results, the jamming effects of the three jamming modes are obtained, and the effectiveness of the jamming is proved.
出处
《通信技术》
2009年第2期8-11,共4页
Communications Technology
关键词
四相位绝对移相键控
连续噪声干扰
单音干扰
指向性单音干扰
误比特率
最佳干扰
QPSK
continuous noise janming
single frequency modulation jamming
pointed single frequency modulation jamming
BER
optimal jamming
