Then an improved proposal for the channel estimation using spread sequence was imposed.
在此基础上，改进了基于扩频序列的信道估计方法。
Azimuth resolution of meter wave radar can be improved by using super resolution spectrum estimation methods without extending the antenna aperture.
超分辨谱估计技术可以在不增大天线口径的情况下提高米波雷达的方位角分辨力。
The estimation algorithm using pilot symbols together with the decision data was also analyzed, and the accuracy of the estimation result can be improved by utilizing the decision data.
同时，对利用导符号并结合判决数据进行频偏估计的算法也做了研究，判决数据的使用可以使估计结果更加精确。
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