8MARTIN K. Phasor measurement unit performance tests[C]// Precise Measurements in Power Systems Conference, November, 1995.
9LI Jian, XIE Xiaorong, XlAO Jinyu, et al. The framework and algorithm of a new phasor measurement unit [C]// IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004), April 5 8, 2004: 826- 831.