摘要
直接序列扩频信号在军事通讯中具有广阔的应用前景。针对直接序列扩频通信系统扩频码本身的特点,从理论上推导得出了直接序列扩频信号的时频特性和参数估计。分析了噪声干扰技术和回波模拟技术。通过计算机仿真,对比了样式相同而不同干扰功率情况下直接序列扩频通信误码率,其仿真结果验证了理论推导的正确性。
Direct-Sequence Spread-Spectrum signals（DS-SS） have great value in the implement of military communication systems.Based on the characteristics of PN codes of DS-SS,the Winger distribution is used to deduce the features of Time-Frequency and to estimate parameters.Through simulation,the error rate of DS-SS under the same style and different power is compared.The result shows the method is valid.
出处
《舰船电子工程》
2012年第3期44-46,共3页
Ship Electronic Engineering
关键词
直接序列扩频
时频谱特性
干扰
direct sequence spectrum
time-frequency spectrum characteristics
jamming
