This paper discussed emphatically various error factors affecting upon quadrature phase discrimnination circuit. Formulae and results are given in the paper.
本文重点讨论影响正交鉴相电路鉴相精度的各种误差因素，给出了计算公式和计算结果。
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The circuit of this plan was simple and cheap. Moreover, it could fast get high quality quadrature signal and have good practical value.