摘要
从L2C码的信号结构、多路径效应和信噪比3个方面对实际采集到的观测数据进行分析,结果表明,新的L2C码采用了新的设计结构,其多路径效应与C/A码的多路径效应较为一致,且L2载波的信噪比得到明显提高。然后利用L1载波和L2载波分别求解双差模糊度,实验结果说明,加载了L2C码的L2载波和L1载波计算双差模糊度的效果一致,较原未加载L2C码的载波在模糊度解算效率上有显著的提高。
The actual L2C signal is analyzed from the signal power ,multipath noise and fixing integer ambiguities .And through the experiments ,it can be concluded that the new civil code has better data quality and strong anti‐interference ability ,and the fixed integer ambiguities can be fixed by L2 carrier and L1 carrier with the same effect .
出处
《测绘工程》
CSCD
2015年第2期6-9,共4页
Engineering of Surveying and Mapping
基金
国家自然科学基金资助项目(41004010)
