摘要
文章介绍了一种中高速突发解调处理系统突发捕获与载波同步算法实现,采用相位域突发捕获与同步算法,解决了卫星上行信号幅度变化对突发捕获解调性能的影响,具有突发捕获概率高、载波同步快和解调动态范围大等优点,并且该算法FPGA逻辑资源占用及运行速度在软硬件实现上具有很大优势。
In order to realize middling and high speed burst demodulator for broadband satellite application, a burst acquisition and fast carrier synchronization method is proposed for burst QPSK demodulation system. This method is based on phase domain burst acquisition and synchronization algorithm and can reduce the influence of satellite uplink signal level variation on burst acquisition and demodulation performance. Furthermore, some other advantages are also achieved, such as high burst acquisition probability, faster carrier synchronization and highly dynamic range of demodulation. Finally, the method also has a large advantage of implementation in FPGA in aspect of logic slices and running speed.
出处
《空间电子技术》
2010年第1期30-33,59,共5页
Space Electronic Technology
