Method and Apparatus for Differentially Orthogonal Modulation by Using Orthogonal Code

摘要

The present invention relates to a differential quadrature modulation method and apparatus using an orthogonal code.;The present invention provides a differential orthogonal modulation method using an orthogonal code in a transmitter of a digital communication device, the method comprising: (a) differentially encoding input data to be transmitted by the transmitter to generate encoded data; Doing; And (b) orthogonally modulating the encoded data using the orthogonal code to generate a transmission signal comprising a differentially orthogonal function in baseband. A differential orthogonal modulation method using an orthogonal code in a transmitting unit of a communication device and a differential orthogonal modulation device for performing the same.;According to the present invention, by generating a group of transmission signals so as to have orthogonal characteristics at the time of difference detection and using them as transmission signals of digital communication, the receiving side has an effect that a signal can be detected using a differential detector having a simple structure instead of the detection of a synchronous method. have.;Orthogonal Modulation, Differential Encoding, Orthogonal Function, Differential Decoding