Design and Realization of Carrier Frequency at Galileo E1/GPS L1 Band
Zhu Huai-huan · Modern Electronics Technique · 2010
A design scheme that adopts PLL and DDS technologies to design Galileo/GPS high-precision pseudolite frequency synthesizer is proposed since Galileo/GPS pseudolite system has a very high demand to carrier frequancy.E1/L1band carrier frequency is outputted after the second mixing.ADS simulation of mixing module indicates that the output carrier frequency can satisfy the stray suppression index of system.The PCB board was made according to the scheme of the frequency synthesizer and debugged.The testing results show that each index of E1/L1-band carrier frequency meets the design requirements.