转载leiqui的内容，QPSK仿真内容，附件模型是根据书上的原理图进行组织，每一模块都呈现。例如I/Q分路，调制，解调，判决等。 -Reproduced leiqui content, QPSK simulation content, attachment model is based on the book is organized on the diagram, each module are presented. Such as I/Q splitter, modulation, dem