The simulation results show that the power factor approaches to 1 (0.99) at stable state, and the exciting current control method and switches table in four quadrants are correct.
仿真结果表明在稳态时功率因数接近于1（0.99），验证了给出的励磁电流的控制方法、四象限开关表的正确性。
Meanwhile, an error correction coding and decoding table-checking method suitable to PDF417 was proposed, which could decide any code corresponding to the power of the element in GF (929).
同时提出一种适用于PDF417纠错编码和译码的查表方法，可以简单确定任意码字在GF(929)内所对应的本原元的幂次。
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