一种快速的用于TD-SCDMA终端射频一致性测试的频偏估计算法

Frequency offset estimate algorithm is the basic of the TD-SCDMA RF conformance test, the accuracy and efficiency of the algorithm has a very important significance on the conformance test. This paper transform the frequency offset estimate for the TD-SCDMA signal into the frequency estimate for a single complex sinusoid. The estimator is more computationally efficient than the optimal maximum likelihood estimator yet attains as good performance at moderately high signal-to-noise ratios. All the achievements in this thesis have been successfully implemented in terminal RF conformance test set and utilized in plenty of terminal companies, certification institutions as well as venders.