摘要
信号源对研发、实验及开发硬件电路系统起着非常重要的作用。结合研发及工程的实际情况,设计了一种采用DDS(直接数字合成)和PLL(锁相环合成)技术相结合、兼容拨码开关、RS485两种控制方式设置频率和功率可控的WCDMA信号源。经实际使用的试验结果表明:WCDMA信号源在工程实现中具有良好的工作性能和实际应用价值。其输出频率范围为1 920~1 980 MHz和2 110~2 170 MHz。
Signal Source is very important in the research, experiment and the development of the hardware circuit system. Combining the research with engineering, the technology of DDS( Digital Direct Synthesis) and PLL( Phase Locked Loop) are combined to design the WCDMA signal. The system may be controlled to set the frequency with the Switch and RS485. The experiment results show that the WCDMA signal soure has good porfornance and actual value in practical application. The signal source has the output frequency range of 1 920 -1 980MHz and 2 110 - 2 170MHz.
出处
《电视技术》
北大核心
2012年第9期96-99,共4页
Video Engineering
基金
国家科技重大专项(2010ZX03007-002-03)