This paper discusses briefly survey method and basic principle of RTK. The precision and result of RTK and urban First-order traverse survey is compared and analyzed.
对rtk的基本原理作了简述，并对rtk的测量方法作了讨论，与城市一级导线测量结果进行了比较及精度分析。
In order to improve channel estimation's precision, in chapter 5, semi-blind channel estimation and detection using superimposed training's first-order statistics were studied.
第五章研究了基于一阶统计量的叠加训练序列的半盲信道估计方法，并结合检测结果来提高估计的精度。
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