| 摘要: |
| 设计开发了一种用于卫星双向时间传递(TWSTT) 系统的调制器，详细介绍了该调制器
的内部结构和相关算法。采用FPGA和DDS进行硬件实现，并完成系统的仿真测试。该调制器
的中频输出频率为70 MHz，峰值输出功率为-15 dBm。 |
| 关键词: 卫星双向时间传递 调制器设计 伪码扩频 中频输出 |
| DOI： |
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| 基金项目: |
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| Design of a modulator for two-way satellite time transfer(TWSTT) system |
| WANG Xue-yun,ZHANG Sheng-kang |
| () |
| Abstract: |
| A modulator which is used in Two-way Satellite Time Transfer(TWSTT) systems is d
esigned and developed.The structure and the algorithm of the modulator are given
in detail.
The modulator is implemented based on FPGA and DDS, and the simulation result
is obtained. The intermediate frequency (IF) output of the modulator is 70 MH
z and the power output is -15 dBm. |
| Key words: two-way satellite time transfer modulator design PN code spread spectrum IF output |
